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Liebert® STS2/PDU™ - Emerson Network Power

1. 114 TASB Groundin o nesst4 e ege Ve NEA que deseo pag adit dd ee atteint 114 14 1 6 Electrical Requirements 115 TAA SupptresslON asec px vesc eer odes cer s M sce 115 14 1 8 Response Times were ra nerd Au E RN 115 14 1 9 Environmental 115 System Components cur GS PUR BES MG SEL OD ER IN 115 14 2 1 Frame and 116 14 2 2 Caster and Leveling 250A 116 T4 2 397 COONS o Oa RM e OS ERE AA 116 I4 2 4 AGCOSS A ustedes d s up one t deba ee me escis bete au te tm a t 117 14 2 5 Circuit Breakers m o e ea e ri e eee 117 14 26 QCable Entr nce c s Es 4 Y ee pet s e ENS 117 14 28 eio Mert rui esta wlan Td GR e DD 117 14 2 8 Color Graphical Display ette a due qd sien Tercer os 117 14 2 9 RS 292 POFLU ode ere eee EE editos ao curb s 118 14 2 10 Terminal Port 118 14 2 11 RS 232 Interface Parameters 11
2. 72 9 1 6 DOR Eail re dad Beh aE Au IE Bees 72 9 1 7 On Off Sequences ode esol deer br P etui Dg 72 Detailed Component 72 9 2 1 On LEO IS Bed air BED 72 9 2 2 Circuit Breakers and Non Automatic Circuit Breakers 73 9 2 8 vio c Du 73 9 2 4 Logic Modules S EX RR CR WE RE OE SR UN 73 9 2 5 A dible A grin tee eR e de lla gen bed 73 9 2 6 RS9 232 T due b alice ond etre 73 OPERATING 5 74 Normal System 74 Manual Transfer Preferred Source 76 Enabling Remote Source Selection 77 Maintenance By pass sis dias ad dee EES a TT 10 4 1 Bypass Procedures for Source 1 78 10 4 2 Bypass Procedures for Source 2 79 Normal System 80 10 5 1 Shutdown in Static Transfer Switch 80 10 5 2
3. 43 Installation Drawings Figure 34 Electrical field connections 400 600A Liebert STS2 PDU with left side output breaker L0 90011 454 SI 5 IWYHLNAN 9 JUV SYVESNE aNmose ANY asvHd c SM3 L3MIETIIA SIHONI NI 38Y SNOISN3IAIG L 541 3SVHd 8 4SVHd 1 140 ASVHd 5533914 dAL 6D VIT 49S 201 dt 20 882 LAdLNO QSAOWSY STANVd LINADOV 8 SHOOG HLIM MAIA ACIS 1441 44 Installation Drawings Figure 35 Electrical field connections 800A Liebert STS2 PDU with right side output breaker 0 9M 9001 4854 MOIHL 2 6 SI 5 WHLNAN Suvasna ANY ASVHd 2 SYS LAWITIW S3HONI JYY SNOISNSNIC 1 SALON 19 5 8 S39vVld dAL VD an VIC 9 Cy S2 011 E 0T QSAOWSY S THNVd IN3O2OV 8 SHOOQd H LIM MAIA ASWHd dsvHd V ASVHd 890 uaa 104100 45 Installation Drawings Figure 36 Electrical field connections 8600A Liebert STS2 PDU with left side output breaker 0 100 454 MOIHL SI 9 5 TWHLNAN MOIHL Suvasnga ANNOYS ANY ASVHd SYHSLAWITHA SIHONI FHV SNOISNAWIG L SALON 1 140 5 8 523914 v dAL 80 VIT 95
4. ES X POL dAL V3uv LINGNOS LNdNI dOL AYLNI LINGNOO AMAA INIAN Hali 208 IZIS jadis LHOIY MAIA INOMJ LON 3MVLNI NIV LINS OL HONNd SAOWSY SALW Id S8309V d IHVAOIN3H aT HONOYHL 318VT1IVAV AHLN3 318V2 INOLLOS dOL OL 2 SC X 86 X 4215 3 8vSOdSsIO H3JLTIJ FOV IddH OL H000 N3dO ONUIONVH LAAYO 31vno3aav ATIVENLONYLS SI WOLLOG LINN HH MM 9878 18 002 0 V009 CHH AAM 06 S 18 Ot L OZ KOUdd WOOF LNdLNO LYIH 7 LL 33O Wal HO lOO 9 615 ONITIGNVH 3 IIHA TIVOLLH3A 40 Sb NIHLIM L3NISVO d335 3GIS LHO IY NI GSYINDAY SSADOV 3OIAHIS NOLLVTIVISNI HOLIMS 1 1S80VHX3 HIY aasinoas LINN 3A0SV JONVYVAT WASP 81 sa108es 009 OWZELZ S970027 VOOr 1 4 2 SH313IATTIIWA SIHONI NI SNOISN3MIO 1 23 5 CEL v6y 98D SALON Figure 21 Outline drawing 400 600A Liebert STS2 PDU inline distribution right side with key lockout switch option 31 wings Installation Dra Figure 22 Outline drawing 800A Liebert STS2 PDU inline distribution right side with key lockout switch option 0 10811
5. NOILOANNOOYALNI I SALON uvasng QSAOWSY STANVd TVM LO3N IN3OOV HLIM M3IA LNOMHJ wvasnd b MAWYOSSNVEL T STIV130 61011454 d dNoILoas 02011 484 JJS uvasng S IIVL3d HOJ g yygsng 1201 484 SNIAN HO g3 4 NOILOAS yygsng 33S 0c0LLdSd ONIMVYC 395 ee Se 5 uvasnsgs 515 8 5 v duvasna CB3A NOILOAS mA NOILOAS NOILOAS m 515 1510 52 Installation Drawings Figure 43 Electrical field connections 800A Liebert STS2 PDU interconnect wiring right side one line 0 92011464 S TI L3O 0201 4854 33S NOILOAS YAMVAN JHL NI GaddIHS ANY 689 9 289 180 OL GAHOVLLV dV NOILOAS 515 OL 689 9 90 190 ONIMIM NOLLOJNNOOHLNI 2 81130 61 01 484 9NIMVSO 33S NOILO3S SIS JHL NI LL OL GSHOVLLY 38V TVHLOSN 3 62181 0111 1 uvasng Q3AON3M STANVd TVH LO3N IN3O9V H LIM MIA LNOMHJ uvasnga H3INHOJSNVH L Dada H cH LH NOILOJS LdSd S9NIMVHO 335 3 3 NOILOJS 0c0LLdSd 448 V3HV NOILOAS yf NOILOAS 21226 NOILOAS NOILNEIYLSIG 515 SALON 5 0 HOJ 61011454 198 53 Installation Drawings
6. MSL Td 32018 LON OG 39VLNI 17 wings Installation Dra Figure 8 Outline drawing 250A Liebert STS2 PDU with right side I Line distribution 0 90 1 454 4 14 M SHOOQ ONIMS SHOOT LNOH4 MAIA dO L OL T3NVd SSA00V GADNIH ob GX BCL AHIN3 ALINGNOD dOL LINGNOO H3MOd LSNVHX3S 62 X wb Sb 0 n LINGNOD 1nd1no doL ud 31 TANVd 3415 LNOHLIM NMOHS LINN LNO amp 3 V Wwlad OL 86 SILON 339 dAL 8 310H ONILNNOW qaav3sH 869 ANY 3215 LINGNOO LINS OL HONNd SAOWISY 541914 56 2 ATAVAOWSY 318V IIVAV 318V9 IWO LLOS ANY dOl G2 X SC XL 425 318VSOdSIG 30V IddH OL SHOOT N3dO 11 ASVd LINN HIV3NH3ON SATOH ONILNNOW LINN OLNI 38 LSNW ST 108 ONILNNOW SI LH3SNI WAI JHL 713318 GAZINVATY9 661 VO OL Z Ad GALYOddNS SI NOILVDO71 ONILNNOW HOV3 OL SYALSVO TIY 6 38 LSNW LINN SHL HO LHOISM 0980 SI NVLSHOO 14 JI ALON 15 HOO 14 HO OIIASI3S GASN SATOH ONILNNOW C3QV38HLL 6 HH AM 69 HH NLE 066 0 LndLno Lv3H 8 ONIIONVH MONALMYO 804 ALVN
7. ONILNNOW 1 B 69 3ovadas 4216 LINANOO LINS OL HONNd AAOWSY SALV1d SS3900V 318VAONW3H HONOYH LL AHIN3 318v9 WO LLOS ANY dOL LL LINN 3H L HO LHOIAM JHL LYOddNS OL GNVLS HOO 14 JHL NO 1688 LSNW SH31SVO JHL GASN SI GNVLS HOO SASVE LINN IHL HLVANYSGNN WOY S31OH OSNILNNOW LINN IHL OLNI GAGVSYHL LSNW 517109 ONILNNOW INVIS HOO TJ HO 9NIHOHONV OIINSI3S v TIv L33 33S S310H ONILNNOW Q3QV3HHL 3ZIS 318VSOdSIO MALS HIV 3OV Td3H OL HOOQG N3dO 3LIHM 440 Ndl HO 102 TV9LEHSA 40 940 SL NIHLIM L3NISVO d33 L3lDIHO ATIVENLONYLS SI WOLLO 0191 SAT OLE E LHDISM XOUddV HH MW 6976 YH NLE 0691 XOtddV 10400 1 1 4 NI GAYINDAY SS329V 39lAH3S NOLLVTIVLSNI LSnVHX3 HOS GAYINOAY LINN 3AOSV AONVYV3TO NIW 111259 8L SYSLSWITIIN S3HONI SNOISNAWIG 17 CO SF SALON 4S X 87L AHLN3 LINGNOD 1OH LNOO dOL X VINY AHLN3 LINGNOD YAMOd 01 82 ACIS Ke MAIA IWO LLOS 470 8 VL Vddv AYLNI LINGNOO YAMOd WO LLOS 33S VINY AYLNI LINGNOOD WO LLOS LNOH4
8. uoneoo uonoeuuoo 1949Y G ui eq JOU pjnous sunu BuuiM Je Mod eje1edes uni eq 519 10 Aq IV p 10 uoneJedo uonejejsur SPIED S8p d9M 10181 914 BU 014 9 91 vulg 1uauno eBeyo SMY 9Iqeo pejst 006 199 0001 ui amp ue ejqeo 2 SpJepueis Aq 1 2012euuoo Bnid ui ejqeo jeujauje eseq 00 0 edA pue ezis 9JIM S JON 2 190015 9 ON ON 99S 9 qeo 63 Installation Drawings Figure 54 Control wiring for the RS 232 Port See Detail A NOTES 1 RS 232 communication through DB9 connector 2 Connector accessible with front door open Connector must be removed before closing door 6789 12345 GND DB9 Connector Detail A Front View PS213006 Upper Half of Unit With Door Open 64 Installation Drawings Figure 55 Control wiring for remote source selection option SEE NOTE 1 SOURCE 1 SOURCE 2 PREFERRED PREFERRED 1 Foe 52 ts ND
9. 66 Installation Drawings Table 8 Input circuit breaker schedule 250 800A Liebert Liebert Circuit Breakers STS2 PDU STS2 PDU See One Line Interrupting Rating Input Volts Diagrams Vendor Type Ampacity Voltage Rating Amps 208V NJHN 400A 208 240V 100K 250A 480V amp CB7 GEO NFNN 150A 380 480V 35K 600V NFNN 125A 600V 18K 480V NJHN 250A 380 480V 65K 400A CB6 amp CB7 MERLIN 600V GERIN NJHN 200A 600V 25K 480V NJHN 400A 380 480V 65K 600A CB6 amp CB7 MERLIN 600V GERIN NJHN 300A 600V 25K 480V NJHN 500A 380 480V 65K 800A CB6 amp CB7 MEREIN 600V GERIN NJHN 400A 600V 25K Table 9 Output circuit breaker schedule 250 800A Liebert Liebert Circuit Breakers STS2 PDU STS2 PDU See One Line Interrupting Rating Input Volts Diagrams Vendor Type Ampacity Voltage Rating Amps 250A 208V CB8 MERLIN NJHN 250A 208 240V 100K GERIN 400A 208V CB8 MERLIN WJHN 400A 208 240V 100K GERIN 600A 208V CB8 Square D PGD 600A 208 240V 65K 800A 208V CB8 Square D PGD 800A 208 240V 65K Table 10 Non automatic breaker schedule 250 800A Liebert STS2 Circuit Breakers PDU See One Line Withstand Rating Diagrams Vendor Type Ampacity Voltage Current CB1 CB2 CB3 208 240V 125K 250A CB4 5 Square D JLN 250A 380 480V 100K 1 2 CB3 MERLIN 208 240V 100K CB3A CB4 5 GERIN ied
10. 14 008 4 1 2 2 Unit Preparation Biden GA ee ees NIS 4 1 3 Tnterrial Inspections S RE oie ate ea E EU 4 2 0 LOCATION CONSIDERATIONS 5 2 1 Recommended Minimum Service 5 2 2 Heat Output cco ence a ad ue eet eet 5 2 3 Operating 5 2 4 e carats 6 3 0 LOCATING THE LIEBERT 2 7 3 1 Anchoring the Unit to the Floor 7 3 2 Leveling of the 250A Only Liebert STS2 PDU Without 7 4 0 POWER AND CONTROL 8 4 1 Input and Output Power 8 4 2 System Grounding uui Dr QE Ee PE Ped Ma TS 11 4 3 Control Wiring Connections zu elu ee ER D Ue E a VERSA 11 4 4 Remote Source Selection 11 4 5 Poet Supply o n thts ua 12 5 0 OUTPUT POWER WIRING 2e xv xXx ERA e
11. SONOS LAdNI 5 Q3AONN3H STANVd 1 9 SHOOQ HLIM LNOJ 37 Installation Drawings Figure 28 Electrical field connections 800A Liebert STS2 PDU input with CB3 0 VLOLLdSd 1 140 YVESnd aNnoso 6626 6 71 SHOVId 8 dAL WW EOL S3OV ld 9 dAL VIO AW VL vid 96 1 19 5 LNANI 01 840093 1V901 ANY TWNOLLYN NI 38 OL SI 9NIHIAA TIV H3GN3WINOOH LON 33V Sd 18VO WANINN TV QV IO S3ddOO ANY WONIANTY Y Sd18VO LAdNI LINGNOS 31Vsvads v NI dd d InoHS Sd 18Vv2 LAdLNO 31Velvd3ds NI 38 LSNA 9NIHIM H3MOd ANY SUV SYVESNE 9 9 ASVHd c SUHSLSWITIN S3HONI SNOISN3IAIO TIV SALON OQ3AOW STANVd IN3OOV 8 SHOOG HLIM LNOYSA sivasna 33s avasna aNnous BH V V NOILO3S 338 v ESSER SEE Exile Re 2199 999 290 sgo vao NOILOJS Yayvsayd Suvasna JOYNOS SI NMOHS LON uvasna TA viaa 5 LAdNI 33S eit dounos id I3AOWHH S THNVd IN3OOV HLIM 3GIS 1441 5 38 Installation Drawings Figure 29 Electrical field connections 800A Liebert STS2 PDU input with CB3 and CB3A 0 SLO
12. etae a esent Melton desastre oet end 97 Mimic Display Selsey Odeon UE AS ERU Pd E dede etes 98 Eveut Controls eant DN EUR R M M 98 EventsDis play uoces PEU UU ES RU ET BR OP te meae ex ba E EQUUS 98 Men Bat va Sect tta URP Ier a TE uota E quin es 98 Configuration 98 T9 CL INOS Sis i tee RR ne ie az Boe Bot eee e EM cu e RS eof eta 112 1327 2 Source See base meet os tolg ed rd oe Pr e ee dde io 113 19 529 Startup Procedure eae tere E eite e aue SOEUR qd op PORTU Dos 113 19 74 Bypass Procedure ie soe ex Ce RA alle or ce Te re eset TU deo 113 1 MR EMT 113 197726 e pH Meses ue a 113 Cleaning the LCD Touch 113 SPECIFICATIONS 2x adore EX Re ERE Worse Neon PUE DOLOR EVE e eae p n 114 System 114 VA db ture get EAT Tay teat ub HU IRE RM OE IST A dr 114 1412 Voltage 3 sc etc 114 14 1 8 Output Voltage ooo ELSE NE Ee RPM EE PR LM UC 114 14 1 4 System Current
13. 2801 ASWHd ASVHd V ASVHd 890 LAdLNO Q3AONA3H STANVd IN3OOV 8 5 H LIM 1441 46 Installation Drawings Figure 37 Electrical field connections 800A Liebert STS2 PDU interconnect wiring 0 8L0LLdSd 5 GNNOYD 617 9 14 8 dAL AW 0L S3OV ld 9 dAL NN Y 1 9s dIv L3d Yvasna TIVH LOSN SAOV1d 9 dAL WNZ 1 8 NOILOANNOOUALNI TIV NOILO3S MOIHL SUVESNE ANNOYS TVHIOSN 2 515 SHSLSWITIIA SIHONI NI SNOISN3INIC TIV 1 SALON NOILOAS SLS Q3AON3M STANVd IN3O2OV HLIM ACIS 1 61011484 O ONOILOAS 33S 95 TLOSN 33S uvasna TVHIOSN 1 uvasnga 33S uvasna 6L0LLdSd V VNOLLO3S 33 INO NOILO3S NOILO3S H3MV4dHga STANVd IN322V H LIM ACIS 1441 6LOLLdSd OM g GS 8NOII 1945 338 47 Installation Drawings Figure 38 Electrical field connections 800A Liebert STS2 PDU interconnect wiring breaker section 0 6LOLLdSd uvasnga JAIM IHS STIVLAC 5 ANNOYS ANY IYHYLNIN yvgsng TINHLOSN 0 O4 51140 NOILLVOO I 935 SLOL
14. TH REMOTE SOURCE SELECTION NOTES 1 CUSTOMER PROVIDED NORMALLY OPEN DRY CONTACTS RATING 10 30VDC 2 MAXIMUM CABLE LENGTH 500 FT 152 METERS WITH 300V MINIMUM FLEXIBLE STRANDED CABLE 3 ALL CONTROL WIRING BY OTHERS MUST BE RUN SEPARATE FROM POWER WIRING CONTROL WIRING RUNS SHOULD NOT BE COMBINED IN THE SAME CONDUIT 4 REFER TO STATIC TRANSFER SWITCH CONTROL CONNECTION DIAGRAM FOR LOCATION OF REMOTE SOURCE SELECTION OPT 5 ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL PS213007 AND LOCAL ELECTRICAL CODES Rev 02 65 Installation Drawings Figure 56 Color LCD touch screen display LO 006LLdSd SNOILdO ANaW BE ooo TJANVd AV1dSId SdWv SdlAV IVLOSN SLIOA HOLOVJ H3MOd HOLOVJ32I HOLOV4J 18959 IN3HMH OO avol EE 00Ud dA8 DOSd dNLYVLS Su3Jx 3ounos S901 Eg 4086 Ad 2 JOWNOS ADYNOS ZH 009 vo vo WO A802 802 A8OZ vo 0 5 avol 0 MA OL Ob LAdLNO ZH 009 VOL VOL VOL 80 A806 80c vo oa av dounos SIANOO diA3 LH3AO LNAISNV dWALYSA0 LNAWdINOA dIA3 LH3AO MNISLVSH N3dO HOS ZS N3dO HOS LS LYOHS HOS ZS LYOHS HOS IS l3SdH ZH 0 09 182 A80Z A80Z 80c vo oa SLVNYSLTV ZH 009 802 982 vo J 04483434 LL AV1dSId IN3 d S IOHLNOO
15. own Frozen on 10 28 02 at 08 30 05 OUTPUT UV 1 mav soe _ CLEAR 112 Touch Screen Display 13 7 2 13 7 3 13 7 4 13 7 5 13 7 6 13 8 To use the History Log 1 Select LOGS from the menu bar to open the Logs menu 2 Select either HISTORY LOG 1 or HISTORY LOG 2 from the menu 3 Select the appropriate buttons to replay the log Select PREV to go to the previous frame in the sequence Select NEXT to go to the next frame in the sequence Move the green cursor to the location from which you would like to play the sequence of events Select REPLAY to play the frames automatically from the point of the cursor Select STOP to halt the replay Select RESET to return to the first frame in the log 4 Select EXIT to close the History Log The data remains in the log Use CLEAR HLOGS to remove the data from both history logs NOTE Event and History Logs are protected by security The password or a disabled key lockout is required on such equipped units to clear these logs Source Transfers The Source Transfer choice SOURCE XFERS allows you to manually select a preferred source To switch the primary source refer to 10 2 Manual Transfer Preferred Source Selection Startup Procedure You can access instructions for starting the Liebert STS2 PDU from the menu bar From the menu bar select STARTUP PROC These instructions are also provided on
16. v vlad a usn OL 8 6 SALON 335 30078 LON OQ IV 8 ONILNNOW MalA 38915 MIA LNOJ AD via 869 gov 1d 2215 LInaNoo LINS OL HONNd SAOWSY SaL V Td 866400 FTAVAOWAY HONOMHL 318v TIVAV AHLIN3 3 18vO9 WO LLOS ANY dOL Zl X 8C X 1 AZIS d 18 VSOdSIO HILT HI V 30V Td3H OL SHOOG 11 3sva LINN HLV3NHa3aNn S3TIOH ONILNNOW LINN OLNI Q3OV3HHL 38 LSNW S1709 ONILNNOW d33d XOUddV SI LH3SNI WIAZL GAGVAYHL 13318 GAZINVA WS 961 v9 OL GALNOddNS SI NOLLVOO 1 ONILNNOW HOV3 OL SHualsvo Tiv YAGNN aardoddns 3g 1SNW LINN JHL JO 1 SHL AASN SI GNVLSYOO T4 41 310N 0 15 HOO 1d HO SNIHOHONV 21018138 CASN SATOH ONILNNOW 1 6 69 YH NLA 068621 XOtddv 11 LWAH 8 ONMGNVH xong DIO ALVNOAAY ATIVENLONYLS SI WOLLOG LINN 2 ALIHM 440 9 STIHM TVOLLH3A JO 93 9 NIHLIM LANIGVO d33M 9 3015 LHOTY 1 GAYINDAY SSAOOV 39IAH3S NOILVTIVLSNI LS0VHX3 GSYINOAY LINN 3AOSV JONVHY3T10 11112569 81 1091 59 1 0898 LHDISM XOtlddV 2 078 SYSLANITIN SIHONI NI 33v SNOISNAWIG TIY l n 0 61 Tie SALON Figure9 Outline drawing 250A Liebert STS2 PDU with right side inline distribution 19
17. dd 5 Sd 18vO LAdLNO LINGNOO 31VHVd3 NI 38 LSNW 9NIHIA HJAAOd IOHLNOO SHvasna ANNOYS ANY asvHd Z SYSLSWITMMA SIHONI NI 33V SNOISN3INIO TIY SALON 20 20 OQNNOYD LAdNI 5 c 5 LAdNI 5 LAdNI L 5 LAdNI L 5 LAdNI L IONOS Q3AOIN3H STANVd IN3O2OV 8 SHOOd H LIM M3IA 1 36 Installation Drawings 600A Liebert STS2 PDU input with CB3 and CB3A 400 Figure 27 Electrical field connections 10 5 GNNOYD 21011 484 8128 S3OV Id 8 dAL IN OL S3OV ld 9 VIC LY AW vL vid 96 dAl 9 LNdNi 99 5 Su 1 29 Vo 5 DL eos 02 AI v1 54003 191419919 WOOT ANY HLIM NI 38 OL SI TIY S Q3ON3WINOO3H LON Sd I8v9 WANINN IV CIV I9 ANY WNNINN TV v Sd 18V9 LAdNI LINGNOS a3l1VHVdds NI dd Sd 18vO LAdLNO LINGNOO 31vsvdds NI NOY LSNW ONIHIM H3AYOd ANY IOHLNOO MOIHL SHvasna ANNOYS ASVHd 2 SYSLAWITIIA SIHONI NI JYY SNOISNSWIC TY SALON 2 5 5 5 SONOS
18. 0 12011464 uvasna QSAOWS3Y STANVd ILN3OOV LNO H4 uvasnga OQNNOYD YaWYOASNVEL YaWYOASNVEL 0 g 9 0 9 n H cH LH NOILOJS 0cO0LLdSd 395 1 3 NOILOAS 02011454 ONIMVMHCO 445 NOILOAS 2 NOILO3S NOILOAS NOILNGEIYLSIO 515 Figure 44 Electrical field connections 800A Liebert STS2 PDU interconnect wiring right side one line with STIVL3d HO 0201 33S NOILOAS YSMVSNE JHL NI 5 0 9 280 180 OL GAHOVLLV NOLLO3S SLS OL V 8O 9 289 180 ONITHIM NOLLO3NNOOMH3LNI 2 STIVL30 6101 484 9NIMVHO 33S NOILO3S SLS JHL NI Q3ddlHS ANY LL OL Q3HOVLLV SYVESNE TVHLOSN 9 6 21410111 SNTFHIM NOLEO3NNOOMWSLUNI 1 SALON 51 130 6101 198 54 Installation Drawings Figure 45 Control wiring 800A Liebert STS2 PDU left side distribution 0 L08 dSd Q3AONN3 STANVd HLIM M3IA ona PEND ona SLNO 5 ond NO SEND OL dVO SEND PENO OL PENO NO OL EEND LENO OL dVO LENO SENO OL dVO SENO SLND OL avo SLND LENO orig SEND A IHIN3SSV NVA NOILO3S T NOILO3
19. 4001 012 VAN AYLNA LINGNOOD JOHINOO NOLLOG Had 1 076 1145 66 6 96 DNIddIHS 100 ONIddIHS 8 32018 LON Od DIVINI NIV v 996D HOLIMS AA 32 Installation Drawings Figure 23 Electrical field connections 250A Liebert STS2 PDU input output with 8 0 600 454 g vlad 5 5 LAALNO 8 WHLNAN s3ovid p dAL LUN W3d CEXS KOUddV uvasnaz dounos VT ory S3aov ld 01 dAL S 8X97l uvasnd INdLNO WHLNAN SHOW 1d p dAL LONWAd TEX GL uvasna S3ov la t LON Wad C X891 XOUddV uvasnd dounos 53009 Woldlodl1d 1v90 1 IWNOLLVN H LIM NI 38 OL SI ONIHIM TIY Q 3ON3AWNINOO3H LON 38V Sd 18v2 WANINNTY 19 3ddOO WANIANTY Sd 18V2 LfldNI INO 43 LINGNOS 31V Vd3s V da qinoHs S318VO LAdLNO 31V8Vd3 NI 38 LSAW ONISIA ANY 1OHINOO Suvasna IVHLON lt SH313IATTIIW SIHONI NI 3HY SNOISN3IAICI 17 7 SALON S3OVv ld AW VI 167 ego Q3AOWH S THNVd IN32OV 8 SHOOT HLIM LNOJ vlad suvasng
20. 5 1441 NI C3I 10 38 55399 3OIAHJS NOILVTIVLSNI LSNWHX4 aaulno3s LINN 3A08Y 3ONVHY3TO WASP 81 L091 S810 5 XOtddV 2 SHALAWITIHA SIHONI NI SNOISN3INIO TIV SALON MAIA LNOYSA 01 8 9 1 YAMOd WOLLOG we LX AMINA LINGNOO INOLLOS V IIVI3O 33 Xubb ASLN3 LINGNOOD IOHLNOO MALTA IV LON Od 1441 2 451 9 20 wings Installation Dra Figure 11 Outline drawing 250A Liebert STS2 PDU with left side Inline distribution 0 20211 454 340 1411 SHOOT ONIMS SHOOU LNOMJ 021 MAIA OL I3NVd 88422 Q39NIH uada 31 TANVWd 3015 NMOHS LINN INOHJ V Vlad OL 86 SILON 339 dAL 8 ONLLNNOW CAL G 2 WAL 859 OW ANY 215 LINANOO LINS OL HONNd S31V 1d SSAOOV ATIEVAOWSY 3 18V IIVAV ASHLN 1 WOLLOG ANY GE X SEX V AZIS da vSOdSIO JOV1d38 OL 5400 N3dO bb Asvd LINN HLVANYS0NN SATOH ONILNNOW LINN OLNI dG3OV38H L 38 LSNW 11
21. 55 YES NO SAVE CANCEL The PDU Options window allows you to specify whether you have the surge suppression option Ifthe TVSS option is installed this selection is set at the factory to YES To disable surge sup pression click NO Click SAVE 4 Pole Transfer Switch This selection is set at the factory to indicate whether the system is a pole or 4 pole unit The 4 pole design is not available at this time Shunt Trip This selection is set at the factory Wye Output Transformer The Wye Output Transformer controls the firing of the SCRs on startup which minimizes the inrush into PDU transformers Output breakers and PDU input breakers have to be closed when you start up the system Based on whether the input side of the PDU transformer is configured as a Wye or Delta changes the firing sequence of the SCRs If the Liebert STS2 PDU is connected to a PDU configured as a Wye Select YES for the Wye Output Transformer choice in the System Options dialog box Remote Source Select If your system is configured with the optional Remote Source Selection it must be enabled from the System Options menu See 4 4 Remote Source Selection Wiring for more information If the system is utilizing Remote Source Selection Select YES for the Remote Source Select choice in the System Options dialog box to activate the option System ID Most of the settings for System ID are set by Liebert either at the factory
22. 20 LOOLLdSd 89 2 10 voorcos voszooi 5 9NIMOTIOJ 31VGOWINOOOV NVO 51 V008 2 Sud vdsa ose 001 OL JO 31vOOlNINO2OV NVO SLINN v009 OSZ L MHL t l Sdovld 02 dAL AW Z v1 VIO 96 90 uvasna 8 vlad ct WW 07 1722 SALON MHL eV KOUddV SHOW Id 0 dAL AN VIO 7 WIN 20 dAL 90 uvasna V Iv L3d WW 14 aV SZ WaLAAN LAdLNO l 49 g 1 448 5 V 1 33 uvasria WHLNAN LAGLNO quvog 1 QSAOWSY STANVd LNADOV 8 SYOOd H LIM MAIA LNOHJ ato 0699990900 S IHNVd HLIM 1441 dAL SHJV3H8 LNdLNO 42 Installation Drawings Figure 33 Electrical field connections 400 600A Liebert STS2 PDU with right side output breaker L0 V00LLdSd Z L SI d Vasna WHLNAN SUV 5 5 ANY SYSLAWITIIA SIHONI NI SNOISN3IWIG 1 SALON 5 52353914 dAL 2 VIT 9S 200 15 02 9 OT E O0T Q3AOIN3 S THNVd IN3OOV 8 SHOOG HLIM ACIS LHSIY aNnoso TVe LO3N dSVHd 8 ASVHd V 849
23. 68 System 68 8 1 1 Redundancy is err e etae ede Bi treo ines e eee ts 68 8 1 2 Reliability and Agency Requirements 69 8 1 3 Factory Backup and Service 69 Modes of 69 8 2 1 Normal Preferred Source 69 8 2 2 Tran ee Du Ru et ra e 70 8 2 8 Transfer DInbbit roians iaa tox tpe tbi re 70 8 2 4 Bypass esr be lies Leen ce Rte See oe eased he ae nas cece aici 70 Operator Sante Sea AUi ava M RUE eU Dea 70 THEORY OF OPERATION Lacs ote 71 General Description ees SEV UI DE 71 9 1 1 Liebert Static Transfer Switch 2 Power Distribution 71 9 1 2 Source Transfer i4 ROR ee pa d i aa 71 9 1 3 Automatic 71 9 1 4 Eni essency Dransfer iex de aces aia deta als is on hs da 72 9 1 5 Load Current Transfer
24. Risk of damage from improper installation The input sources to the Liebert STS2 PDU must be grounded wye sources Input sources other than solidly grounded wye sources may cause damage to the switch Liebert neither recommends nor knowingly sells this product for use with life support or other FDA designated critical devices The Liebert STS2 PDU is suitable for indoor use only The unit is designed to operate from solidly grounded AC power sources only Provide input over cur rent protection in accordance with the unit ratings Wire and ground the unit according to national and local electrical safety codes All wiring should be installed by a properly trained and qualified electrician A thorough equipment inspection and supervised startup by qualified service personnel are strongly recommended at these times 1 Before unit is placed into service for the first time 2 After equipment relocation and 3 After the unit has been de energized for an extended period A WARNING Risk of heavy unit falling over Can cause equipment damage injury or death Locate the center of gravity symbols and determine the unit s weight before handling the cabinet Read all instructions before attempting to move the unit lift it removepackaging or prepare the unit for installation NOTICE This unit complies with the limits for a Class A digital device pursuant to Part 15 Subpart J of the FCC rules and EN550022 These l
25. You can run through the frames sequentially The sequence of the events is identified by date time and frame number The History Log frames are stored in a nonvolatile memory buffer that is continu ously overwritten until a designated fault condition occurs When the fault occurs to trigger a freeze the History Log stores the next 23 frames then freezes until it is reset The History Log then keeps 40 frames before the fault the frame where the fault occurred plus the next 23 frames The History Log should not be reset until the fault condition that caused the buffer to freeze is reviewed and investigated by a qualified service technician After the alarm condition has been cor rected the History Log can be cleared The History Log has the following fields Replay Rate indicates how long it takes for the replay to play Use the UP and DOWN buttons to set the time Status the status of the Liebert STS2 PDU at the point of the current frame in the replay The History log has three statuses Frozen Not Frozen and Retrieving Data please stand by Critical Event The event which triggered this log to be written The event is indicated in red on the bar graph Frame Number the current frame in the replay A negative number indicates the replay is at a point before the triggering event occurred Alarm Notes The I PK on Source 1 and I PK on Source 2 alarms inhibit automatic transfer due to an overload or load fault Thes
26. wings Installation Dra Figure 10 Outline drawing 250A Liebert STS2 PDU with left side I Line distribution 0 c0cLdSd S3ONIH J4O 14l1 M S4000 ONIMS SHOOQ LNOYS 021 SH3DIV3Hg LAdNI OL TANVd SS320V I39NIH ub SX 82L AH LN3 IOH LNOO dOL X uh VAY LINGNOO YAMOd dOL LSNWHX2 4 84 X wb Eb V3HV AMLNA LINGNOD 401 Lee TANVd 3915 LNOHLIM NMOHS LINN dO 1 4 4 V IV 13d OL 8 6 SALON 33S dAL 8 310H ONILNNOW aaavas via 4313441 dAD 869 ANY 4215 LINGNOD LINS OL HONNd SAOWSY S31V Td SS390V ATAVAOWSY 3 18V TIVAV AHLN3 18 ANY dOL GZ X SC X 1 JZIS d1g8vsOdSIO 317114 UV OL SHOOQ N3dO LL ASVd LINN HLV3NSH3ON 541 ONILNNOW LINN OLNI 38 LSNW S1109 ONILNNOW XOUddV SI LH3SNI WW GAGVSYHL AHL 19315 GaZINVATV9 661 Vo OL Ad GALNOddNS SI NOILVO07 ONILNNOW HOV3 01 SHd3lsvo 17 Hadwn 6 38 ISNW LINN JHL JO LHOI3AA AASN SI NV LSHOO 14 dl ALON ONVIS HOO Td HO ONIHOHONY OINSIAS Q3Sf1 SATOH ONILNNOW O3O0V3HL 6 HH MM 6976 HH Q118 06921 XOuUddv LOdLno Iv3H 8 ONUIONVH MOnH DrHO4 31Vno3av ATIVENLONYLS SI WOLLOG LINN 2 ALIHM INI HO lOO 9 ONUIONVH 3 TIHM TVOLES3A 40 93G 9 NIHLIM L3NIGVO d335 9 A TINO
27. AC Power For Business Critical Continuity Liebert STS2 PDU User 250 800 Three Phase 60 Hz EMERSON Network Power CONTACTING LIEBERT FOR SUPPORT To contact Liebert Global Services for information or repair service in the United States call 1 800 LIEBERT 1 800 543 2378 Liebert Global Services offers a complete range of start up services repair services preventive maintenance plans and service contracts For repair or maintenance service outside the 48 contiguous United States contact Liebert Global Services if available in your area For areas not covered by Liebert Global Services the authorized distributor is responsible for providing qualified factory authorized service For Liebert Global Services to assist you promptly please have the following information available Part Numbers Serial Numbers Rating Date Purchased Date Installed Location Input Voltage Frequency Output Voltage Frequency TABLE OF CONTENTS CONTACTING LIEBERT FOR SUPPORT INSIDE FRONT COVER IMPORTANT SAFETY 5 1 1 0 UNPACKING AND INSPECTIONS 3 1 1 External Inspections obese SES RIGO BAI EG eU EDS MO ae Be 3 1 2 Unloading and Handling 65 5 on E E A Oa PT es 3 1 2 1 Handling
28. 61 Control wiring for comms 62 Control wiring for the Liebert IntelliSlot Web 485 Card With Adapter option 63 Control wiring for the RS 232 Port 64 Control wiring for remote source selection 65 Color LCD touch screen 66 Liebert STS2 PDU touch screen 70 Liebert STS2 PDU touch screen 74 Source Transfer screem ee eR 76 Gate board viewing slot 77 Liebert STS2 PDU Touch Screen 95 M nusw Same MU atau E a e 96 Keyboard and keypad 96 Key lockout Switch aa eg RE BR Rus 97 Event Mask dialog box 99 Usersettinigs dialog e beg Gawain Y a Bae 100 Source setpoints Ee ae ae eeu SCENE RR ede Pre ee a 101 PIU SET OI Cosy ret hn CE CER EM Cervia et m err cue ge
29. 800A Liebert STS2 PDU interconnect wiring left side distribution cabinet avasng 5 S38lAPIN 1SId OL Wows NOILO3S NOILNGIMLSIG OL NOLLO3S NOH ONIYIM NOLLOANNOOYALNI 0 LZ0LLdSd d o g vee 9 978 d 2 a voe HLIM NOLLO3S JO MIIA 01 806 S3OV Id ouvasnd qauvasnd v uvasng NOILOAS H2DIV3H8 JHL NI ANY SYVaSnd OL GSHOVLLV 1048 1510 01923 8 V ONIMIM NOLLO3NNOOMHAINI AHOJOV SI WHLNAN AHL SH3L3IATTIIA SIHONI NI 3HV SNOISNSWIG L SALON 8159 692 dAl INDVdS 602 L S3OV Id n n 5 5 do SIVWLAG o 9 MO138 S1IV13d 33S V V NOILO3S OI3AOIN3 TANVd ACIS H LIM M3IA LNOYSA 1441 NO I3NI8VO NOLLNEIYLSIC NOILOAS 198 50 Installation Drawings Figure 41 Electrical field connections 800A Liebert STS2 PDU interconnect wiring left side one line 0 vZ0lLlLdSd STIVL3d 1201 dSd JAS 193S H8 JHL NI Q3ddIHS YY OL GSHOVLLV 1046 LSID OLO 9 g Suvasng YY NOHA ONIMIM 1 1 6 S TIVL3O HOH 04011 dSd 33S 1935 H3XV3W8 JHL NI 5 90 9 290 180 OL Q3
30. SHOV 1d v dAL LAN IN3d 1 C XS XOtHddV uvasna 5 54009 1VOIHLIO3T3 W901 IVNOLLVN H LIM 3ONVQSHOOOYV 38 OL SI 9NIHIM 11 S G3aN3WINOO3 LON S318VO WARNIINQ TV GV19 Y3ddO9 ANY WANINNTY Sq 18VO LAdNI LINGNOS 31 V8Vd3s V NI 38 GINOHS 8418 9 LNdLNO LINGNOS 31 VSVvdas NI 38 LSAW 9NIHIM H3MOd ANY SNIHIM TOHLINOO OIHL v L Suvasna 9 3svHd SYSLSWITIW S3HONI NI 33V SNOISNAWIG TV L SALON Figure 25 Electrical field connections 250A Liebert STS2 PDU input with CB3 amp CB3A cao Q3AONH S THNVd IN3OOV 9 SHOOT HLIM M3IA LNOJ g vlad 33S PUTT UU vao 99 5 as EO LU 35 Installation Drawings Figure 26 Electrical field connections 400 600A Liebert STS2 PDU input with CB3 10 83 5 GNNOYD 21011454 L 882 cre S3OV Id 8 WW OL SdOVld 9 dAL LY WIN V VIC 997 YVEsnd LAdNI 8822 05 8750 v1 AW 6701 NICO 9S 54003 1211 93 WOOT ANY H LIM NI 38 OL SI TIY GSONAWWOOSY LON 3HY Sd I8VO WANINNTY CIV TO ANY WANINNTY Sd 18v9 LINGNOS 31Vsvdas v
31. the Liebert STS2 PDU 14 2 System Components All Liebert STS2 PDU models provide two isolation transformers connected to a solid state three pole dual position static transfer switch within one enclosure with the ability to transfer between two input sources to a single output All Liebert STS2 PDUs are configured with an LCD Color Graphical Interface touch screen display for monitoring and configuring the unit 115 Specifications 14 2 1 14 2 2 14 2 3 Frame and Enclosure The complete Liebert STS2 PDU is housed in a freestanding enclosure The cabinet is a NEMA type 1 enclosure The cabinet is structurally designed to handle lifting from the base The frame is designed to accommodate floor stands Table 24 Frame sizes Rating Width e dios Height 250A 60 x 32x 77 152 x 81 x 196 400 600A 73 x 49 x 77 186 x 125 x 196 800A 96 x 49 x 77 244 x 125 x 196 Width is 76 8 in 195 cm with output distribution cabinet The distributed floor weight for Liebert STS2 PDU is less than 260 lb sq 118 kg m The required service access is front and one side of the unit 250A without output cabinet is front access only Side access depends on which side the output cabinet is mounted can be left or right The Liebert STS2 PDU can be tipped 15 in any direction without falling over Caster and Leveling 250A only The 250A unit frame includes heavy duty swivel casters for ease of install
32. 10 1 Normal System Turn On Bypass Procedure You can access instructions for bypassing the Liebert STS2 PDU from the menu bar From the menu bar select BYP PROC The instructions are provided in the display panel Bypass procedures are also discussed 10 4 Maintenance Bypass Help You can select an event in the Event Display to display more information about that event in the Dis play Panel This same help is also available in 15 0 Event Message Help Text Logo The Logo menu choice shows the Liebert and Emerson logo in the Display panel Cleaning the LCD Touch Screen If the touch screen requires cleaning use a pre moistened towelette designed for cleaning CRTs or dampen a soft non abrasive cloth with a very mild cleaning solution Do not spray the cleaner directly onto the touch screen as drips may run down into the screen and damage the equipment Close all menus and dialog boxes before cleaning the touch screen 113 Specifications 14 0 SPECIFICATIONS 14 1 14 1 1 14 1 2 14 1 3 14 1 4 14 1 5 System Configuration The Liebert STS2 PDU can be set in several different configurations according to the model and loca tion The configuration is set at the factory and does not need to be changed by the customer Frequency The Liebert STS2 PDU accepts input frequencies of 50 Hz or 60 Hz depending on the model ordered The frequency shall be within 0 5 Hz of the nominal frequ
33. 13 Programmable relay board 14 Input circuit breaker schedule 250 800 67 Output circuit breaker schedule 250 800 67 Non automatic breaker schedule 250 800A 67 Event THESSAGES d eos TRE rae inteso a s E DA DR GT se An 84 Terminal comma dst ooi tete c e tee tas ee Ee e Mr ae edge be td 87 GEES ed qe E 89 Group settings and values 90 Binary hexadecimal conversions 92 Setpoint PATAMELELS ue ehe e oral ea tr i e ee AR ress 101 PDU set points Nest eee OF Gas bees Sah ae NE ead Ru Rad s 103 Standard settings for programmable 108 Inputivel tag ess Gest SAUNT ues 114 Output voltarem ete sig WE meet MEO DS 114 System current PALIN GS Sisco dis ce es hese be Sea es eee Wes Bk 114 Electrical requirements 5a scs re eee e RR 115 Unit short circuit withstand 115 EramedlZ6
34. 33S edo uvasnd bdo V Wad uvdsnd LAdLNO 8 TWYHLNAN gounos 335 33 Installation Drawings Figure 24 Electrical field connections 250A Liebert STS2 PDU input with CB3 LO 0101 454 SHOV1d dAL g WVLad WW EL 8T 1 5 3osnos Sgo SNOILOANNOO YAWOLSND ON zgo SAOV 1d dAL SAOV 1d dAL LAN Wad EX GL uvasna z 39Hnos LOAN Wad b 2 1L fe X GL uvasnd 54009 1 W907 HLIM NI 38 OL SI TIY 9 G3aNaWimWOO34 LON 3HY S318V9 WANINATY QV 1O Y3ddO9 ANY v 53 1979 LNdNI LINANOO 3l Vslvd3s V NI 38 qinoHs Sd 18Vv9 LAdLNO LINGNOS 31Vevdas NI 38 LSNW ONISHIM YIMOd ANY SNISHIM TOHINOO MOIH LL w b SYVESNE aNnoso 9 ASVHd SYSLAWITIW S3HONI NI SNOISN3WIO SALON QSAOWSY STANVd IN3OOV 9 SHOOQG HLIM g vlad 508 33S V vlad 508 33s 34 Installation Drawings LO LLOLLdSd g lIvL3d Jvasnga F ssi S3OVd dAL WW 1 VIC LS 1 5 SNOILO3NNOO YAWOLSND ON SHOV1d v dAL LAN IN3d 6 2 1 ZEXGL XOUddV uvasna 5
35. 380 480V 100K 1 CB2 CB3 MERLIN 600A CB4 5 NSJ 600A 208 240V 100K 1 CB2 800 4 5 Square D PJD 1000A 208 240V 100K 67 Introduction to Liebert STS2 PDU Operation 8 0 INTRODUCTION TO LIEBERT STS2 PDU OPERATION 8 1 8 1 1 System Description A Liebert STS2 PDU provides an automatic seamless transfer between input power sources to an output load The Liebert STS2 PDU monitors the input sources to ensure each source is operating within set parameters as well as ensure that each source is within acceptable tolerances for a trans fer between sources to be completed The Liebert STS2 PDU contains two static transfer switches in one enclosure to allow the unit to transfer its load between the two input sources without disruption to the output for longer than 1 4 of a cycle If a problem is detected with a primary Preferred input source and defined trigger points are reached the Liebert STS2 PDU automatically switches the input to the other Alternate input source The Liebert STS2 PDU continues to monitor both sources and can automatically transfer the load back to the preferred source if so configured when that source returns to acceptable operating parameters The system control logic automatically monitors the input sources and power output to ensure that they are operating within acceptable tolerances The system logic manages t
36. 4070 012 LINGNOO YSMOd LNdNI WOLLOS dAL MALT 35018 LON MAIA LNOYS 11145 6 6E 11145 076 41992 ONIddIHS 6 96 ONIddIHS 8rth oDnonggoogo vi 996D via 89 o6oo06696 TV 0 6 LINGNOD OWLNOO dOL 1441 p v 6v 29 wings Installation Dra Figure 20 Outline drawing 250A Liebert STS2 PDU with key lockout switch option LO 02 484 85 LndNI OL T3NVd 55399 GAONIH SHONIH 14 M SHOOQ SNIMS SHOOT LNO3J 1 TANVd ACIS LNOHLIM NMOHS LINN 40 LNO 4 V lIVL3d H3T3A31 0 SALON 33S S v 3 10H SNILNNOW dA QaavasHi vid ININZL B 69 2215 LINGNOOD LINS OL HONNd S3AOW3M S31V 1d 5842 dT IS8VAONWA3 H9nOHVHL 3 18V IIVAV 3 18V9 IWO LLO8 ANY LINN SHL HO LHOI3M AHL LYOddNS OL QNVLS 400 14 SHL NO 1594 LSNW SH31SVO SHL 8861 SI GNVLS Y00714 dl 3SV8 LINN 3H L HLV3NS3QON SATOH ONILNNOW LINN JHL OLNI Q3QV38H LSNW 51109 ONILNNOW GNVLS HOO 1H HO 9NIHOHONV OIINSI3S 33V v TIV L33 339 S310H ONILNNOW Q3QV3HHL SCXSCXV 3215 3 18VSOdSIG YILT 30V Td3H OL HOOG N3dO ALIHM 330 Wal HO 1OO ONITGNVH STI
37. 454 350 131 M SHOOT TIV SS X ctc LINGNOD LNdNI dOL dOL dAL 5 021 X 06 AYLNS LINGNOD dol TANVd SS329V Q39NIH 3218 LINGNOOD LINS OL S3lV ld SS3OOV 3 18V IIVAV AS LN3 3 18VO INOLLOGS NV dOl 01 G2 X X 325 3dAL FIEVSOdsid HAL 39V Id3H OL SHOOQG N3dO 6 ONUIONVH 1 HOS 31vnoaav ATIVENLONYLS SI WOLLOS LINN 8 91 uH nig 0 0 XOYddY Lv3H 1 ALIHM 330 9 ONFIGNVH STIHM WOLLYSA 40 930 SL NIHLIAA L3NISVO d335 8 A INO ACIS LHOIS LNOYS NI S8320V 3OIAH3S NOLLV TIVLSNI E 1S VHX3 LINN 3AO8V JONVYVATO ININZ89 84 ome6ze 58129689 LHOISM XOYddY 2 SYALSWITUN S3HONI SNOISN3INIG SALON o00000G0 UUOGUUODU V Ivi3d 4 papcapecy UN L L 217 T MSN cap V 33 S3ov ld dAL V3tHV ANINI LINGNOD 1ndino X 8 0 dAL AHLIN3 LINGNOD 933 915 WOLLOG S3OV ld dAL VICI 88 MAIA WO LLOH OOL 0 AYLNA LINGNOD YAMOd LNdNI INOLLOS 41 INOMHJ 095
38. Board 1 YES NO Prag Relay Board 2 YES NO Network Interface Card YES NO Site Scan YES NO Save Cancel 104 Touch Screen Display Configuring the Modem The Modem dialog box allows configuring an external modem connected to the Liebert STS2 PDU The dialog box contains a series of choices that access either a keypad or a secondary dialog to config ure settings Auto dial can also be configured for the modem to be triggered by events as set up in the Event Mask choices Designated major alarms activate the auto dial modem sequence Automatic dial attempts are made to the first number three times at 30 seconds between attempts If connection is not established in that time period the system automatically rolls over to the second number Auto dial attempts are made again three more times at 30 seconds between attempts The process is repeated until a success ful connection is made Upon successful connection the system transmits a present status data including all active alarms messages After transmission the modem automatically hangs up and returns to the auto answer mode To configure the modem 1 Select MODEM from the Comm Options menu The Modem dialog box is displayed Figure 70 Modem dialog box Modem Modem Type Ej Primary Line Secondary Line Ej Init String E Baud Rate 0 B Modem Health Check YES 2 Auto Dial YES r3 Auto Dial out YES rn Save Canc
39. HIY MAIA 3dIS 1441 HONOSHL 3 18V IIVAV AH LN3 3 18V2 WOLLOG ANY OL S2 X SZ X 3ZIS AdAL 318VSOdSIG 39V Id38 OL S4000 N3dO 6 ONFIONVH L3IT4803 31vnoadv ATIVENLONALS S WOLLOG LINN 8 QH NO 8879 HH NLE 002 06 XOsddv V009 GIH MM 06 S 18 OFL 0Z 00 141010 Lv3H 12 vL 996D 440 WEI 9 ONIIONVH 3 IIHM TIVOLLH3A JO 940 SLE NIHLIM L3NIGVO 5 A TINO 3018 1431 ONY LNOYS NI GAYNINDAY SS399V 6 NOLLVTIVISNI 1SnvHX3 LINN 3AOSV 3ONVHV37O 84 6 Ox0rvc 88108689 009 ONZELZ Sd 10047 LHOIJSAA XOYddY 2 SHILINITIIN SIHONI NI SNOISNAWIG ET pm j 98D 909 SALON 14 12 GG2D 88 X62 2 LINGNOO 1ndino dol 61 25 wings Installation Dra Figure 16 Outline drawing 800A Liebert STS2 PDU with right side output breaker or I Line distribution L0 008LLdSd 7 z MAIAWOLLOG 8 X IZ 2 LINGNOD INdLNO WOLLOg rh 488 X EVEN ATA dO AMINA LinaNoo MIA dOL ter SHONIH 350 141 SHOOQ TIV 9NIMS YOO 0cL dol 4001 012 VINY ABLIN3 LINGNOD JOHLNOO WOLLOd 488 612 Z AMAN LINGNOD INdLNO 4070 012 LINGNOD 1 N
40. If optional subfeed breakers are supplied open subfeed breakers CB12 and CB13 See Figures 3 through 6 for location of breakers a Retract the bolts on the key interlocks for CB1 and CB2 b Extend the bolts on the key interlocks for CB4 and CB5 thus preventing or CB5 from being turned ON 2 Apply source input power to both Liebert STS2 PDU inputs by closing CB6 and The touch screen control panel should become active and operate properly when at least one of the inputs is energized 3 Verify that nominal input voltages are applied to both inputs Source 1 and Source 2 The input voltages selected preferred source breaker and switch status and alarms are indicated on the Mimic screen Figure 58 Liebert STS2 PDU touch screen display Sources Event controls Mimic SOURCE 2 A B 8 208v 208 208V DA OA OA 60 0HZ Static Transfer Liebert d KEEPING BUSINESS IN BUSINESS SILENCE 5 EMERSON Network Power Event display SOURCE XFERS STARTUP PROC BYP PROC 4 Close 5 Verify that Source 1 voltages are nominal and that CB1 breaker status is correctly indicated on the Monitor Mimic screen 74 Operating Instructions 10 Close CB2 Verify that Source 2 voltages are nominal and that CB2 breaker status is correctly indicated on the Mimic screen Verify that boxes for the preferred source and corresponding Liebert ST
41. In 1 4 lines cycles 12 SRC2 I peak Transfer Setpoint Integer x 10 13 Max Transfer Phase Angle Integer In degrees 14 Output Frequency Deviation Integer Freq in Hz x 10 15 ReTransfer Delay Time Integer In seconds 16 Horn Volume Integer Range 1 10 17 Critical Option Enabling Bitpacked See section 12 1 3 18 Non Critical Option Enabling Bitpacked See section 12 1 3 Group 4 1to63 Event Mask settings for faults Event Mask See section 12 1 3 Event Mask 64 to 143 Event Mask settings for alarms Event Mask See section 12 1 3 Settings 90 Communication Interfaces 12 1 3 Setting Bitpacked Options With the Terminal Five sets of options and features settings are available through the terminal to control the system operation Under System Settings for the SPT command these items denote which options are INSTALLED 6 Options 1 14 Comms Options 1 15 Comms Options 2 Under User Settings for the SPT command these items denote which features are ENABLED 17 Critical Option Enabling 18 Non Critical Option Enabling The value parameter settings are in the form of a bit packed word in hexadecimal notation In other words each bit indicates a particular setting for the option or feature The bit assignments for the options and features are as follows Options 1 bitO HasDualOutputBreaker bit1 HasPDU bit2 Has4PoleTransferSwitch bit3 HasShuntTrip bit4
42. PDU system from a terminal type CA and press RETURN on your keyboard 52 CURR SENSE FAIL Source 2 Current Sense Failure The module monitoring the current from Source 2 has failed This module is contained on the right side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Events Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 PDU System from a terminal type CA and press RETURN on your keyboard 51 GATE DRIVE FAIL Source 1 Gate Drive Failure The gate drive module for an SCR for Source 1 has failed This module is contained on the right side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide te
43. STS2 PDU can be configured with a Color Graphical LCD touch screen display that allows you to quickly check the status of the unit and identify problems A touch screen LCD is available through the front of the Liebert STS2 PDU This screen provides a graphical Mimic display of the switch s operation plus system information including system param eters alarms and faults The LCD provides a color back lit touch screen as a user interface In addition to the Mimic and the system parameters the screen provides a series of menus to allow you to configure the Liebert STS2 PDU including the control of the preferred source auto manual retransfer selection alarm notifica tion and other system setpoints The touch screen also provides buttons to reset alarms and turn off audible alarms such as a horn 13 1 Display Overview The Liebert STS2 PDU Color Graphical Display provides three areas of information plus buttons and a series of menu choices The Color Graphical Display contains the following features Mimic a graphical diagram of the status of the unit Event controls allow you to reset alarms and turn off audible alarms Event display displays any active alarm or fault condition in real time Menus provide choices and configuration settings in dialog boxes or information in the display panel Display panel provides additional information depending on the menu choice that was last selected This in
44. Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 PDU has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 129 Event Message Help Text 52 UV RMS Source 2 Under Voltage slow detection The input voltage from Source 2 remained below a set percentage of the nominal voltage for a designated period as set in the Slow UV Setting and Slow UV Detection Delay setpoints configured under the User Set tings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 PDU has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm The alarm is latched and must be reset after the voltage returns to the nominal voltage If the Reset option is not confi
45. The load of the Liebert STS2 PDU has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 1 UV RMS Source 1 Under Voltage slow detection The input voltage from Source 1 remained below a set percentage of the nominal voltage for a designated period as set in the Slow UV Setting and Slow UV Detection Delay setpoints configured under the User Set tings An S1 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 PDU has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm is latched and must be reset after the voltage returns to the nominal voltage If the Reset option is not configured for AUTO automatic reset then the reset action must be done manually When the voltage is within acceptable parameters
46. electronics to facilitate safe repair without de energizing the load using a make before break switching sequence However the unit can be bypassed using a make before break switching sequence only to the same source to which that the switch is connected as indicated by the highlighted static transfer switch box on the Mimic screen In the event of source or switch failure the unit should be bypassed only to the current input source For convenience instructions for the bypass procedure can be displayed on the touch screen by select ing the BYP PROC option from the menu bar The Mimic is used to verify the status of the unit during the bypass procedures In the unlikely event that the Color Graphical Display is not available open the front door and look through the slots in the control door If you can see green LEDs on the gate driver board through that slot then the unit is connected to the source referenced on the label below that slot See Figure 60 Figure 60 Gate board viewing slot locations 4 Touch Screen Viewing Slot Viewing Slot for the Source 2 for the Source 1 Gate Drive Board Gate Drive Board Green LEDS on the Gate Driver Board are viewable through this slot indicate that the STS is on X UNT CEU Source 1 gt N GREEN LEDS ON GREEN LEDS ON THE GATE DRIVER THE GATE DRIVER BOARD ARE VIEW M BOARD ARE VIEW ABLE THROUGH A
47. event are listed with the events in Table 11 D L S E A the event masks Dial Latch Summary Event log and Audible The masks are the value parameter for the command Each mask type must be preceded by a plus sign to enable it or by a minus sign to disable it NOTE NO spaces are placed between each mask listed above Only the mask that is passed enabled is applied when the event occurs To set the event masks for a particular event 1 Enter the command Examples and descriptions are provided below 2 Press ENTER After the new settings are entered the new results for that event ID are displayed 93 Communication Interfaces Examples of Event Mask Settings To latch event 001 S1 SCR SHORT use SPT 4 1 L To disable event 128 CONFIG MODIFIED from sounding the horn use SPT 4 100 A To enable event 012 OUT VOLT SENSE FAIL to Dial and go into the Event Log use SPT 4 12 D E To disable all masks for event 120 INPUT CONTACT 1 use SPT 4 120 D L S E A To breakdown this syntax for the last example SPT SVT command 4 group parameter identifying System Setting group under which the Event Mask settings reside 120 item parameter In this command that 1s the event ID D L S E A value parameter In this case the minus sign disables all masks for the INPUT CONTACT 1 event 94 Touch Screen Display 13 0 TOUCH SCREEN DISPLAY The Liebert
48. event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 1 SCR OPEN Source 1 SCR Open One or more SCRs on Source 1 is open Transferring between sources has been inhibited Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Liebert STS2 PDU output has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 120 Event Message Help Text 52 SCR OPEN Source 2 SCR Open One or more SCRs on Source 2 is open Transferring between sources has been inhibited Liebert STS2 PDU output has been transferred to Source 1 Contact te
49. information The choices under the Config and Log menus access additional dialog boxes while the other menu choices only show information in the display panel Configuration Menu When you select the CONFIG Configuration menu choice a pop up menu is dis played with four choices System Ratings SystemRatings used to configure frequency voltage and currents settings for the Liebert STS2 PDU Event Masks Event Mask allows you to configure system s response for events User Settings allows you to configure operations for the Liebert STS2 PDU System Settings accesses another pop up menu to configure communication and system choices and the system ID System Settings Each of these choices accesses a separate dialog box System Ratings System Ratings The System Ratings menu is used to set the nominal line fre quency nominal voltage and nominal current at which the system Eine Frequency e2 e operates when it is installed These settings are configured when the system is initialized at the factory or under maintenance and should not be changed by the user RMS Voltage 206 RMS Current RMS Voltage PDU 208 Save Cancel 98 Touch Screen Display Event Masks The Liebert STS2 PDU gathers processes and reports faults and alarms collectively referred to below as events The Event Mask dialog box allows you to set the system s response for specific alarm
50. is accessed from the Comm Options dialog box The Input Contact Isolator dialog box contains eight choices to match the eight channel input board You can label each button to identify the event associated with the contact When the dialog box is accessed each button flashes to display the Input Contact Isolator number and the user entered label This label also appears in the Display Panel when an event related to an Input Isolator Connector is triggered The Input Contact Isolator dialog box allows you to Label the input contact assignments for your setup Set the delay for an external event triggering an alarm Review the isolator contact assignments once the labels are entered The delay allows you to set the number of seconds which a condition needs to persist to trigger an alarm These input alarms can also be configured to activate a programmable relay output which is dis cussed in Configuring the Programmable Relay Board Settings on page 108 106 Touch Screen Display To configure the Input Contact Isolator relays 1 Select INPUT CONTACT ISOLATOR from the Comm Options menu The Input Contact Isolator dialog box is displayed Figure 71 Input Contact Isolator dialog box 10 11 Input Contact Isolator INPUT CONTACT 1 DELAY oo INPUT CONTACT 2 DELAY INPUT CONTACT 3 DELAY ffoo INPUT CONTACT 4 DELAY oo INPUT CONTACT 5 DELAY foo INPUT CONTACT 6 DELAY foo INPU
51. left side output breaker or I Line distribution 0 208 454 MaAIAWOLLO 00 012 Vduv OHLNOO WOLLOS8 dOV Idas ONY 3ZIS LINGNOD LINS OL HONNd SAOW3H SALV 1d SS3O2V ATEVAOWSY 3 18V IIVAV AH LN3 WO LLOS ANY dOl 0 X C X 3ZIS IlHvSOdSIO HALT 39V Id3H OL SHOOU N3dO 6 ONITGNVH 1411 4 HOS 31vnoaav ATIWYNLONYLS SI WOLLOS LINN 8 111717 04209 XOsddv LV3H 12 JLIHM 440 9 ONITONVH 3 IIHM JVOLLS3A 40 940 9 NIHLIM L3NIGVO 5 301 1481 ONY LNOYS NI QG3IDOH S 392V dOIAH3S ANY NOLLV TIVLSNI LISnIVHX3 O38IDn O3 LINN 3AO8V SONVEVATO 81 8 616 Sg129 8 LHOISM 2 SSHONI NI SNOISN3IAIC SALON 440 1417 M SHOOQ TN SOC g EC WARY ENIMS 021 LINGNOS H3ANOd ALINGNOD 4001 012 AHLN3 LINGNOO LNdNI NOLLOS 1719 6 6 9NIddIHS lt 100 MAIA LNOH 6 96 Vz 0 AHLN3 401 MAIA dOL X 1 WOLLOg eal TANVd SS322V Q39SNIH dAL Yl HIY MOO 8 LON 4 996 11145 046 ONIddIHS lt 8 41 gt 62 0 6 A
52. modem and a telephone line is connected to the modem the system can be programmed to automatically dial out upon occurrence of any of certain designated alarms The auto dial feature can be configured for alarms using the Event Mask option in the touch screen See Configuring the Modem on page 105 for instructions on for setting up a modem Event Mask The Liebert STS2 PDU gathers processes and reports faults and alarms collectively referred to below as events The Event Mask dialog box allows you to set the system s response for specific alarms and faults that are generated The following mask types are available for each event Latch If a latch is enabled for the selected event that event remains active even if the originat ing event condition clears A latched event may only be cleared by pushing the RESET button Dial Out If the selected event is triggered the system automatically calls the specified tele phone numbers through a modem For example a page could be sent or an event could be sent to a external terminal via a modem See 12 0 Communication Interfaces for more information on configuring communications options Event Log The selected event is date time stamped and recorded to the Event Log when the event is triggered Audible If the selected event is triggered an audible beeper or horn is sounded by the Liebert STS2 PDU The beeper continues while this event is active or latched or until the S
53. on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured INPUT 2 CB7 OPEN Input 2 CB7 Open Source 2 Input Circuit Breaker 7 is open Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured 138 Event Message Help Text INPUT 1 OF UF Input 1 Over Frequency Under Frequency Source 1 is over frequency under frequency Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event w
54. operation The unit is supplied by multiple AC power sources Disconnect and lock out all power sources before working inside unit Minimal periodic maintenance of the Liebert STS2 PDU is required As with all electrical distribution components the system should be regularly inspected for electrical connection integrity signs of excessive temperatures dirt accumulation and proper system operation Proper Tightening of Nuts and Bolts The recommended tightening torque for all nuts and bolts is as shown below unless otherwise labeled All power connections are designed to remain at proper torque throughout the lifetime of the unit Table 28 Torque tightening Grade 5 Imperial Electrical Connections with Grade 8 8 Metric Belleville Washers in Ib N m in Ib N m Bolt Shaft Size pound inch Newton meter pound inch Newton meter 10 32 25 3 35 4 1 4 20 53 6 80 9 0 5 16 18 107 12 180 20 4 3 8 16 192 22 240 27 1 1 2 13 428 48 480 54 3 Table 29 Branch circuit breakers in Ib N m Current Rating pound inch Newton meter Up to 30 Amp 35 4 0 40 to 100 Amp 45 5 1 Testing the Liebert STS2 PDU The Liebert STS2 PDU includes comprehensive system alarms and fault detection to identify opera tional problems To increase the degree of confidence of proper system operation periodic transfer tests can be easily performed For instructions for changing the preferred source and
55. or when the unit is installed The system is identified and tracked with these numbers Order No System Tag No System ID No and Model No Language Time and Date are synchronized with the location of the unit The only configurable field is the Password See Using the Password on page 97 for more informa tion on configuring and using the password 111 Touch Screen Display 13 7 1 Logs Two types of logs are kept by the Liebert STS2 PDU Event Log and History Log Event Log The Event Log tracks the alarms and faults of the Liebert STS2 PDU See 11 0 Alarms and Faults for more information on these events and see 11 2 1 Event Log for more information on the Event Log and definitions of the fields displayed in the Event Log screen Figure 75 Event log To use the Event Log 1 Select LOGS from the menu bar to open the Logs menu 2 Select EVENT LOG from the menu 3 Usethe UP and DOWN buttons to scroll through the event list 4 Select OK to close the Event Log The data remains in the log History Log Two History Logs are available to track major alarms If so configured an alarm freezes the history buffer When the History Status buffer is frozen a History Log is created that can be accessed from the HISTORY LOG x choices in the LOGS menu See 11 2 2 History Log for more information on the History Logs and definitions of the fields dis played in the History Log screen Figure 76 History log
56. port configured as Data Terminal Equipment for terminal access only half duplex The CPU services the terminal port with no handshaking The serial port conforms to RS 232 levels with a data format of 9600 Baud 1 start bit 8 data bits and no parity bits The serial port is 1000VDC isolated non SELV and ESD protected to 15kV air discharge The connector is a 6 Pin MTA plug with connections shown below Table 25 MTA plug pinout Pin Signal Name Function Comments 1 ISO GND Isolated service terminal ground 2 ISO TXD Isolated service terminal transmit output 3 ISO RXD Isolated service terminal receive input 4 NC No Connection 5 NC No Connection 6 NC No Connection A DB9 male connector is added and connected parallel to the 6 position header It is configured as DTE Table 26 DB9 pinout Pin Signal Name Function Comments 1 NC No Connection 2 ISO RXD Isolated service terminal transmit output 3 ISO TXD Isolated service terminal receive input 4 NC No Connection 5 ISO GND Isolated service terminal ground 6 NC No Connection 7 NC No Connection 8 NC No Connection 9 NC No Connection 118 Specifications 14 2 11 RS 232 Interface Parameters The service terminal interface parameters are the following settings and cannot be changed Table 27 RS 232 settings Parameter Setting Interface RS 232 Using EIA Voltage Levels
57. switching sources see 10 2 Manual Transfer Preferred Source Selection Changing the Air Filter A standard furnace filter is installed behind the air intake in the front door The air intake allows air to circulate to cool the unit Replace the filter when it becomes dirty and impedes air flow The fre quency of changing or cleaning the filter depends on the location in which the unit is located The size of the filter is 1 x 25 x 25 in 254 x 635 x 635mm 143 Customer Settings 17 0 CUSTOMER SETTINGS 17 1 Programmable Relay Board Settings The optional programmable relay board PRB has eight channels to report events to an external device Up to ten 10 events can be programmed to each channel See 6 1 Programmable Relay Board for more information on the PRB If your Liebert STS2 PDU has the PRB option installed list the settings below for future reference If control power is lost in the Liebert STS2 PDU the settings are not saved Table 30 Programmable relay board settings record Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 144 Customer Settings Table 30 Programmable relay board settings record continued Channel 7 Channel 8 Channel 9 Channel 10 PRB Notes 145 Customer Settings 17 2 Input Contact Isolator S
58. the PRBs The programmable relay board dialog box with two options STANDARD SET and USER DEFINED SET The STANDARD SET are the factory configured settings The STANDARD SET for the programmable relay board settings are Table 18 Standard settings for programmable relays Relay Setting Definition SOURCE 1 FAIL Source 1 failure 2 SOURCE 2 FAIL Source 2 failure 3 BYPASS CB4 CLOSED Switch CB4 is closed Source 1 is bypassed 4 BYPASS CB5 CLOSED Switch CB5 is closed Source 2 is bypassed 5 TRANSFER INHIBIT A transfer between Source 1 and Source 2 is being restrained The phase difference between sources 1 and 2 exceeds the 9 QUT OR SYN allowable threshold for transfer The ambient temperature of the ProductName exceeds the f EQUIP OVER TEMP recommended threshold for operation 8 Blank No setting The USER DEFINED SET allows you to assign faults and alarms to each contact on the relay boards Utilizing the USER DEFINED SET you can also select Input Contact Isolators to associate with a programmable relay In addition individual events three other assignment choices are available SELECT ALL sends a summary event to the selected relay whenever any event occurs If this set ting is selected for a relay no other event needs to be assigned for that relay ON SOURCE 1 or ON SOURCE 2 can be assigned to a relay to send a notification when that source is being used by the load Once configur
59. the bits combined in groups of four the binary settings can be translated into hexadecimal val ues The first two groups in the sample equal zero 0 In the third group 1000 in binary translates to 8 in hex In the fourth group 0001 in binary translates to 1 in hex hex this equates to digits in the value parameter cannot have spaces between them 0081 So your command to indicate that the Remote Source Selection and the Dual Output Breaker are installed would be SPT 2 6 0081 Setting Event Masks with the Terminal The event masks can be customized via a terminal The command SPT4 lt ENTER gt displays all faults and alarms along with their associated event masks A plus sign means that particular event mask is enabled while a minus sign means that mask is disabled Refer to 11 1 Event Mask for more information on event masks and their associated flags Unlike the System and User Settings mask values are set by designated letters not hex values However with other RS 232 interface settings four parameters are passed See 12 1 2 Configur ing the Liebert STS2 PDU via the Terminal for more details about the parameters The syntax for configuring event masks is SPT 4 ID D L4S E A SPT is the terminal command used to configure setpoints 4 setting group parameter for event masks under System Settings D event ID The ID is the item parameter for this command The ID numbers for each
60. the lower left corner of the LCD Indented text Help text shown in the Display Panel in the lower right corner of LCD BOLD Commands that are sent through the RS 232 port 1 SCR SHORT Source 1 SCR Short One or more of the SCRs for Source 1 has shorted Transferring between sources has been inhibited Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 2 SCR SHORT Source 2 SCR Short One or more of the SCRs for Source 2 has shorted Transferring between sources has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This
61. this setting with a range of 1 to 60 seconds The default setting is three 8 seconds and the resolution is 1 second b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box 10 Select AUDIO LEVEL A dialog box is displayed with HI and LO settings This choice sets the loudness of the horn or beeper that is sounded for audible alarms a Configure this setting with a range of 1 10 ten The default setting is 5 The settings have an increment of 1 one b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box You can select TEST to briefly sound the alarm to judge its volume 11 Select DISPLAY BRIGHTNESS A dialog box is displayed with HI and LO settings This choice sets the brightness for the touch screen a Configure the Contrast and Brightness settings with a range of 1 10 ten b Select OK to save the settings 12 Set the AUTO REXFER ENABLE choice The auto retransfer enable setting determines whether the switch automatically returns the preferred source after that source is restored Select YES to enable the automatic transfer Select NO to disable the automatic transfer The setting requires transfers be done manually 13 Set the AUTO RESTART ENABLE choice This setting determines whether the Liebert STS2 PDU can be started automatically when power is restored after it has been lost S
62. to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY S1 AC FAIL Power Supply Source 1 AC Failed The AC input power to the power supplies from Source 1 has failed The power supplies are now operating on AC power from Source 2 The AC input from Source 1 is still good Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 122 Event Message Help Text PWR SPLY S2 AC FAIL Power Supply Source 2 AC Failed The AC input power to the power supplies from Source 2 has failed The power supplies are now operating on AC power from Source 1 The AC input from Source 2 is still good Contact tec
63. to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 FAIL Source 1 Failure Source 1 has failed due to under voltage UV over voltage OV or from running over or under frequency OF UF This alarm is a companion to 51 UV 51 UV RMS 51 OV and 51 OF UF The load of the Liebert STS2 PDU has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event has been written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S2UV Source 2 Under Voltage fast detection The input voltage from Source 2 dropped below a set percentage of the nominal voltage as set in the Fast UV setpoint under the User
64. touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 130 Event Message Help Text 52 FAIL Source 2 Failure Source 2 has failed due to under voltage UV over voltage OV or running with an over or under frequency OF UF This alarm is a companion to 52 UV S2 UV RMS 52 OV and 52 OF UF The load of the Liebert STS2 PDU has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 1 OVERCURRENT Source 1 Overcurrent Liebert STS2 PDU is running on Source 1 and an overload condition has occurred on one or more
65. tyoe SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured AUTO REXFER INHIBIT Automatic Retransfer Inhibited The system made five transfers from the preferred source to the alternate source in the last five minutes As a result automatic retransfers back to the preferred source is now disabled To clear this alarm condition assign the alternate source as the preferred source This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure an emergency transfer Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB1 51 OPEN Circuit Breaker 1 for Source 1 Open Circuit Breaker 1 is not closed CB1 is only assigned to Source 1 Check that the Circuit Breaker 1 switch is in the desired position Press SILENCE on the touch screen to turn off the audible alarm if so co
66. 09 ONILNNOW ddd XOYddY SI LH3SNI Q3OV38H L 19315 GAZINVA IVO 661 VO 01 GALNOddNS SI NOLLVOO TO9NILNDOIN HOV3 OL SHualsvo TIY 6 LINN SHL JO 1 AHL 6 SI QNVISSHOO 14 41 310N 0 15 HO ONIHOHONV OINSIAS HO4 GASN S3 10H ONILNNOW 40 6 H MM 69 0690 1 LWSH ONUIONVH 31vno3dv ATIVENLONALS SIWOLLOS LINN 2 3LIHM 440 WEI HO OO 9 ONUIONVH 3 IHM TVOLLS3A 40 940 Sb NIHLIAA L3NIGVO 59 A TINO SIS 1331 LNO43 NI SS309V 5 ANY NOLLV TIVISNI t LS0nVHX3 dqauinoas LINN 3AO8V 3ONVHY3TO AIS 81 1091 SH10 5 LHOIJA XOMddV Z SYSLAWITIIN ONY SIHONI NI SNOISN3IIC SALON 8 2 349 LINGNOS dol PS VAN ASLN3 H3MOd dOL 80 33 S32Vd dAL vid 99 v3dav ASLN3 LINGNOO 1 4 JOYLNOD g 11140 dAl 1 LON OG V3MHV DIVINI IV MAIA LNOJ 10 61 yu 0 X 8 1 VJHV AHLIN3 LINGNOO LNdNI INOLLOS Lndlno INOLLOS at X 8 SHOW 1d 0 dAL 1 03348NS WOLLOG 1441 Z 21 wings Installation Dra
67. 0A 15096 for 2 minutes 500 for 0 25 sec Overload Capability Table 23 Unit short circuit withstand capability Unit Voltage Unit Amps Withstand Capability T 28A 208 240V 400 600A 100kA 800A 100kA 250A 100kA 380 480V 400 600A 100kA 800A 65kA 250A 50kA 600V 400 600A 25kA 800A 25kA 14 1 7 Surge Suppression The static transfer switch is equipped with transient voltage surge suppression on each input for surge suppression The surge suppression is capable of protecting the static transfer switch from operating outside of tolerances due to surges as defined by IEC 1000 4 5 1 2 50uS surge 2kV CM and 1kV DM as required under EN 50091 2 Optional surge suppression modules TVSS are available for each input of the Liebert STS2 PDU for surge protection of the transformers 14 1 8 Response Time A dual level fast slow transfer threshold is used for under voltage detection to allow the Liebert STS2 PDU to be compatible with UPSs and generators The voltage thresholds and the slow transfer delay time is user adjustable The fast transfer delay time is less than 4 ms The over voltage detection uses a single threshold with programmable level and delay time See User Settings on page 100 for instructions on configuring these settings 14 1 9 Environmental Requirements See 3 0 Locating the Liebert STS2 PDU for details concerning environmental requirements for
68. 1 Isolated ground Source 2 Isolated Ground DO NOT USE DO NOT USE A N See 10 3 Enabling Remote Source Selection for instructions on enabling the Remote Source Selection option 11 Power and Control Wiring Power Supply The Liebert STS2 PDU is supplied with redundant power supplies that are designed to operate from a voltage range of 200V to 600V The unit is set at the factory to match the nameplate voltage Field adjustments are not necessary If the unit needs to operate at a voltage other than what is listed on the nameplate contact Liebert Services or your local Liebert representative Table 5 provides trans former tap information Table 5 Terminal block 1 and terminal block 2 wire connections Connect Connect Voltage F1 TB1 XX F2 TB1 YY TB2 XX FA TB2 YY Jumper Between 152003 12841 HN 26 um ae 220 2 12 2 12 6 8 380 1 8 1 8 2 7 415 1 10 1 10 4 7 600 1 12 1 12 6 7 208 1 10 1 10 1 7 240 1 11 1 11 1 7 400 1 9 1 9 3 7 480 1 11 1 11 5 7 NOTICE Using Table 5 ensure that the wiring for the control transformers matches the input voltage for the unit Improper wiring could result in blown fuses 12 Output Power Wiring 5 0 OUTPUT POWER WIRING The Liebert STS2 PDU standard model is provided with a circuit breaker for connecting to the load or a remote distribution cabinet Other distribut
69. 59 Installation Drawings Figure 50 Control wiring for the programmable relay board option 20 LOOELZSd EL LEP GASN LON 91 310N Sl cl 6 9 S 2 9 5 L L Jg Si er Sk er v a OL zL OL 9 6 925 9 9 t Jg 40002 WOH LOSS ONY b 6 1 Y HLA SO NSCTHOODO Y NI 38 LENIN 116 8 Q30NvHIS 318x314 HE HLIA ESSH3LISIN 251 13 008 H IONS 137182 12 1 4002 2005 dINWL SONIIWH LOWLNOD 9 NOLLdO AX TH Ivo Oed JO NOLLY2O THO 4 AV 134 318 VINIVeHlood NOLLO3NNO2 TOHINOO2 HOLMS H3JSNYHIE 2913 01 H33dH S FINS NI O3NISINOD 38 LON SNAH SNAM SNPIIM HQNOd INO 195 NOY 38 1803 SH3HLO AH SNIHIM TTY t NOlLdO Qv OB ATIY JIYAN HOO d IHL 9NIMhSIJNO2 HOS TNNT A ue FEL elu U 6 BPG Pe S3ONSN3LNIVIN NOIL LvH3dO NOLLWITWLSNI OL H3J3H Q3N3dO ATININHON ON 038070 A TIVIWHON 2N NOWINOO 2 338 T3NNYH2O Had SLOWLNOD 2 HLIM STANNWHO TV NEIS PLL PL eb eL A YS Pe 8 NOI LoG 8 AVTSY 2 HONOGHHL SHD0 18 TvNITH3
70. 5ADPT enables the Liebert STS2 PDU to communicate to a network management system NMS The card provides the internal hardware and software to communicate via SNMP to any I P based Ethernet network through an RJ 45 con nector using Category 5 cabling The Liebert IS WEB485ADPT provides redundant paths for communications that make it possible to connect to a Building Management System BMS using Modbus while simultaneously communicat ing to a NMS through SNMP A terminal block provides the connection to Modbus See Figures 47 and 48 for the location of the Liebert IntelliSlot Web 485 Card With Adapter See Figure 53 for control wiring information If you have questions about the Liebert IS WEB485ADPT refer to the user guide SL 52615 available at Liebert s Web site www liebert com Remote Source Selection The Remote Source Selection allows the preferred input source to be chosen from a remote location A user supplied normally open dry contact allows the user to remotely select a source to be the preferred source in the same process as the local source transfer selection If both the input contacts are closed the current selected preferred source shall be retained If the unit s preferred source selection and Remote Source Selection are active at the same time the Liebert STS2 PDU follows the last request for a preferred source change regardless of whether it was from the local or Remote Source Selection controls See 10 3 Ena
71. 78 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured INPUT 1 OVERVOLTAGE Input 1 Overvoltage Source 1 is over voltage Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured INPUT 1 UNDERVOLTAGE Input 1 Undervoltage So
72. 8 eon RUP RE NU d 116 MEP AY plus 11016 aaa ana ERE 118 181235 Sensit v aac SEA tr AER Nd ddr ve orbe iran 118 T 9 202 86 01110 852225 it ras Qe RU Ee Ma 119 Torque tighitentng 11 erede e bir tp NEA EAR de S o tee Pede dad bas Auf oe de qud e roe qus 143 Branch circuit breakers 143 Programmable relay board settings 144 Input contact isolator settings record 146 vi IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during the installation and maintenance of the Liebert Static Transfer Switch 2 Power Distribution Unit Liebert STS2 PDU Read this manual thoroughly paying special attention to the sections that apply to your installation before working with the Liebert STS2 PDU Retain this manual for use by installing personnel Refer to 1 2 1 Handling Considerations before attempting to move the unit A WARNING Risk of electric shock Can cause injury or death Before proceeding with installation read all instructions verify that all the parts are included and check the nameplate to be sure the voltage matches available utility power This unit i
73. 9 14 2 12 Maintenance By pass voe eR oe o e et a EIE re de ead Do 4 119 14 2 19 1 861688 Design ese eO REN e TE n 119 VAs 01185 ot bessere un rot i te eke bed ao LUN Lee 119 iii 15 0 EVENT MESSAGE HELP 120 16 0 MAINTENANCE Cord ee ee d E 143 16 1 Proper Tightening of Nuts Bolts eese eb V Saa e doch o T e 143 16 2 Testing the Liebert STS2 PDU 23s EOS REA E Vs 143 16 35 Changing the Air sees ung sororem ee EIS XU A CUR ae QURE 143 1750 CUSTOMER SETTINGS CRUS C RC CR Fa 144 17 1 Programmable Relay Board Settings 144 17 2 Input Contact Isoldtor Settings is bep IRURE deer 146 FIGURES Figure 1 Recommended derating for high altitude 6 Figure 2 Maximum ambient temperature for full load operation at higher altitudes 6 Figure 8 Typical Liebert STS2 PDU one line 9 Figure 4 Typical Liebert STS2 PDU one line diagram with dual static switch output circuit breakers not available on 250A 9 Figure 5 Typical Liebert STS2 PDU one line diagram with inline distri
74. 98 INPUT 2 OV INPUT Source 2 over voltage 99 INPUT 2 UV INPUT Source 2 under voltage 100 LOAD OVERCURRENT Output over current 101 GROUND OVERCURRENT Ground over current 102 NEUTRAL OVERCURRENT Neutral over curremt 103 LOAD VOLTAGE THD Voltage THD has exceeded the set limit 104 INPUT 1 CB6 OPEN Source 1 input Circuit Breaker 6 is open A E 105 INPUT 2 CB7 OPEN Source 2 Input Circuit Breaker 7 is open A E 106 INPUT 1 OF UF Source 1 over frequency under frequency A E 107 INPUT 2 OF UF Source 2 over frequency under frequency A E 120 INPUT CONTACT 1 Input Contact x is an optional alarm input The alarm name can be 121 INPUT CONTACT 2 programmed with an alarm name from the Input Contactor Isolator 122 INPUT CONTACT 3 settings option under the Comm Options See Configuring the Input 123 INPUT CONTACT 4 Contact Isolator Settings page 106 The alarm is sent to Monitor AE 124 INPUT CONTACT 5 DSP The LCD logs the alarm with the programmed name Monitor 125 6 DSP logs it with the generic name which is how it is reported to the 126 INPUT CONTACT 7 SVT query 127 INPUT CONTACT 8 128 CONFIG MODIFIED A setpoint configuration has changed E 129 PASSWORD CHANGED The password for touch screen access has been modified and saved E 130 TIME REPROGRAMMED The system s time has been reset and saved E 131 DATE REPROGRAMMED The system s date has been reset and saved E 132 EVENT LOG CL
75. AHIN3 LNdLNO INOLLOS 47 X 8 SdOV ld 2 dAL AHIN3 LINGNOS aaadans INOLLOS S39V ld Cv dAL VIGO 88 TANVd 55322 V IIvIa3d 9 3ovidas T 32165 LINGNOD LINS OL HONNd SAOWSY E S31vd 88300 318vAOWS3M 318V1IVAV AHLN3 318V9 WOLLOS ONY dOL OL MAIA ACIS LHOIH X SZ X IZIS 3dAL 818 504810 D 91713 3OV Id3H OL SHOOU N3dO 6 ONUIONVH L3I T4043 31vnoaav ATIWYENLONYLS SI WOLLO LINN 8 02209 104110 Lv3H 4 330 WEI 9 ONUICNVH 3 1IHM WOILYAA 40 D350 SL NIHLIM L3NISVO 3018 LHOIY ONY LNOSJ NI SS392V 32IAH3S NOILVYTIVLSNI 1S0 vHX3 I3slnoa LINN 3408Y 3ONVHV371O 111299 8L O 6 8812968 LHOI3M 4 st a SSHONI NI SNOISNSWIC 1 SALON MAIA WOLLO 001 012 AHLN3 LINGNOO YAMOd LNdNI WOoLLOS 11148 ozs 9NIddIHS 897 eg 6 96 001 X 0 Lec WOLLOd LON Od AMVLNI v 996D 11145 666 SNIddIHS 100 27 wings Installation Dra Figure 18 Outline drawing 800A Liebert STS2 PDU with
76. Assistance Because improper installation can cause a system to fail a Liebert Services or a factory trained ser vice technician should thoroughly inspect the unit to ensure it is properly installed and its operating parameters are properly configured Once the Liebert STS2 PDU is properly installed you as the on site operator can easily monitor the unit s operation utilizing the touch screen In the United States if you need assistance or have questions call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contiguous United States contact Liebert Services if available in your area For international areas not covered by Liebert Services the Liebert authorized distributor can pro vide technical support Modes of Operation Normal Preferred Source Under normal operating conditions the Liebert STS2 PDU routes power from the preferred input source to the output load The unit monitors the voltage current and phase of each source to ensure that both are operating within set tolerances and that the alternate source is available should a transfer be required 69 Introduction to Liebert STS2 PDU Operation 8 2 2 8 2 3 8 2 4 8 3 Transfer Should the preferred source fail or be outside acceptable voltage limits the Liebert STS2 PDU trans fers the input to the alternate source until the problem is rectified in the preferred source The unit can be set to automatically transfer the input back to the preferred sou
77. BLE THROUGH THIS SLOT INDI THIS SLOT INDICATE CATE THAT THE STS THAT THE STS IS IS ON SOURCE 2 SOURCE 1 77 Operating Instructions 10 4 1 Bypass Procedures for Source 1 To bypass the switch for Source 1 NOTE If you wish to bypass the Source static transfer switch but Source 2 is presently active you must first 0 Qo zi OQ E co m transfer to Source 1 See 10 2 Manual Transfer Preferred Source Selection Verify Source 1 is supplying power via the Mimic Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 60 Remove interlock key from CB5 and place it in the CB4 interlock Open the alternate source input breaker CB2 Rotate and remove the interlock key Insert the key in the CB4 bypass breaker interlock Rotate interlock keys CB4 bypass breaker interlock to retract interlock Close bypass breaker CB4 Verify the breaker status on the Mimic screen Open source input breaker Rotate the interlock key and remove it to lockout the breaker Secure the key per your site s lockout tagout procedure Open output breakers CB3 and if supplied to remove power from static switch To return to the normal mode Oo Oey 8 9 10 11 12 Remove the key from 5 and insert it in the CB1 breaker interlock Rotate key to retract interlock Close source input bre
78. Baud Rate 9600 Parity None Number of Data Bits 8 Number of Stop Bits 1 Hardware Flow Control Off Terminator CR lt LF gt Handshaking Not supported Structure Full duplex Local Echo Off 14 2 12 Maintenance Bypass The Liebert STS2 PDU is configured to allow the unit s electronics to be bypassed to either input source for maintenance without interruption of power to the load The Liebert STS2 PDU is furnished with key interlocked maintenance bypass breakers to configure the bypass Liebert STS2 PDU units have all electronics isolated from the input output and bypass connections to allow safe servicing of any components without access to hazardous voltages when the unit is in maintenance bypass See 10 4 Maintenance Bypass for instructions 14 2 13 Fuseless Design All Liebert STS2 PDU units are fuseless 14 2 14 Options The following options are available for the Liebert STS2 PDU Panelboards Export Crating Subfeed Breakers K Factor Transformers Surge Suppression System TVSS Redundant Static Switch Output Breaker Programmable Relay Board Comms Board w Liebert SiteScan and Modem Interface Input Contact Isolator Board Liebert IntelliSlot Web 485 Card With Adapter Remote Source Selection Key Lockout Switch See 6 0 Options for more information 119 Event Message Help Text 15 0 EVENT MESSAGE HELP TEXT Key ALL CAPS Event message displayed in the Event Display panel in
79. CE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 PDU system from a terminal type CA and press RETURN on your keyboard 51 CURR SENSE FAIL Source 1 Current Sense Failure The module monitoring the current from Source 1 has failed This module is contained on the left side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Events Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2
80. DPT includes an RJ 45 port for an Ethernet connection via Category 5 cable The Liebert IS WEB485ADPT can also integrate the system with an existing Building Manage ment System BMS or out of band monitoring using Modbus a standard multi drop protocol The card has redundant communication paths that make it possible to connect to a BMS using Modbus while simultaneously communicate to a NMS through SNMP See Figure 53 for more information on the Liebert IS WEB485ADPT If you have questions about the Liebert IS WEB485ADPT refer to the user guide SL 52615 available at Liebert s Web site www liebert com Input Contact Isolator ICI Board optional provides an interface for up to eight user inputs External messages and alarms can be routed to the unit via the ICI See Configuring the Input Contact Isolator Settings on page 106 for instructions on configuring the connections See Figure 51 for wiring details Programmable relay board PRB optional up to two PRBs can be installed in the Liebert STS2 PDU to route Liebert STS2 PDU events to external devices See Configuring the Pro grammable Relay Board Settings on page 108 for default settings and instructions for recon figuring the relays See Figure 50 for wiring details Comms Board optional includes a terminal block to provide a DTE connection to an external modem This board also provides a direct connection to a Liebert SiteScan terminal via an RS 422 Liebert SiteLin
81. DU contains no master On Off push button control When connected to the input sources the unit s logic power comes on automatically The touch screen display is active as long as at least one input source is energized and the Control Power Disconnect located inside the static switch is closed Detailed Component Description Controls Operator Interface The Liebert STS2 PDU Color Graphical Display unit contains a touch screen color LCD to provide the operator interface to control and configure the operation of the unit and quickly diagnose problems A password and an optional keylock if installed are provided for security Hardware The Liebert STS2 PDU operator interface in the Color Graphical Display unit is designed to pro vide all of the information required to configure and monitor the unit s operation The control logic performs automatic operations with minimal operator interface Each Liebert STS2 PDU unit is equipped with a color LCD touch screen The Liebert STS2 PDU can have optional communication ports installed See 6 0 Options and 12 0 Communication Interfaces for more information on communication options The RS 232 interface is used for configuration and status and event log monitoring 72 Theory of Operation 9 2 2 9 2 3 9 2 4 9 2 5 9 2 6 Firmware The operator interface enables you to monitor the Liebert STS2 PDU to configure setpoints for trans fers monitor system param
82. EARED The event log has been erased E 133 HIST LOGS CLEARED Both History Logs have been erased E 134 XFER COUNT CLEARED Transfer counter reset to 0 E 135 KWH COUNT CLEARED KW Hrs counter reset to 0 E 85 Communication Interfaces 12 0 COMMUNICATION INTERFACES The Liebert STS2 PDU monitoring system offers several choices for communications The RS 232 terminal port is standard on all units The port is inside the front door to the left of the touch screen front panel mounting as shown in Figure 54 This port is primarily used as an alternate user interface to configure control and diagnose the system Commands for the RS 232 port are shown in Table 12 Several other communications options are also available Those options are located a Communica tions compartment See Figures 47 and 48 for the location of the communications options Connections to the communication ports are made by wiring to terminal boards located in the Com munications compartment The communications options listed below reference the control wiring drawing for each option Liebert IntelliSlot Web 485 Card With Adapter IS WEB485ADPT optional the Liebert IS WEB485ADPT provides connectivity to any TCP IP based Ethernet network to allow the device to communicate with network management systems NMS via SNMP Events can be transmitted to the NMS to provide remote status monitoring plus fault and alarm detection The Liebert IS WEB485A
83. Figure 12 Outline drawing 400 600A Liebert STS2 PDU with right side inline distribution 20 9 0091 454 TANVd 53297 v vlad S3OV ld v dAL MAIA S39NIH 530 141 M SHOOT TIY dAL ONIMS 021 LSNVHXa LOvEldSd 33 89X6 AN LN JOYULNOS dol dAL6L V IIVL3d 338 830 p dAL AHLN3 LINGNOD 1nd1no WOLLOS 2 8 S3Ov d dAL AHLN3 LINGNOD dqaadans WOLLOG ud X LINGNOS LINGNOO LINS OL HONNd SAOWSY 551914 S8309V AISVAOWSY 3 18V IIVAV INOLLOS ANY dOL 0L 92 X S X AZIS AdAL 318vSOdSIQ H3 ld OL SHOOT 6 ONUIONVH 1L3I T1804 31vno3aadv ATTVENLONYLS 1 NOLLOG LINN 8 8879 118 002 06 XOYddY V009 JH NO 06 S HH n 18 09 06 XOYddY 00 LV3H 2 ALIHM WEI 9 ONIIONVH 3 IIHAA TVOLLH3A 40 8 NIHLIM LANISV9O 8 301 LHOIY LNOSJ NI GSYINDSY S8S329V 4914438 NOILVTIVLSNI t LSNVWHXa LINN 3A08v 39NVHWV3TO WWSH 81 0 2 85810868 v009 LZ 581002 009 LHOI3M 2 GH3 3IATTTIA SIHONI SNOISN3 MIO L SALON wh O
84. HM TWOILYSA 40 SL NIHLIM L3NISVO ONFIONVH 1 4 ALVNOAGV ATIVENLONYLS SI WOLLOG LINN 0181 581016 8 LHDISM XONddV HH MM 6976 YH NLE 069 104100 LV3H LNOH NI GAYINDAY SSADOV 3OIAH3S ANY NOILVTIVLSNI Sn VHX3 HOS Iasinoas LINN 3AOSV 3ONVHV37TO NIN 11112589 84 SYSLAWITIIN S3HONI NI SNOISN3IWIQ 17 4 8 Xag ZL LINGNOS 01 4770 X 8 Vddv AYLNA LINGNOOD WOLLOG ve VINY H3MOd 9 X LL AYLNA 9 WOLLOS8 MSL 901d LON OG IV LHOI MAIA LL HOLIMS 10 O CO SALON 30 wings Installation Dra 0 AH 1091 454 85 4 540 151 SHOOQ TV ONIAS 028 lSnVHX3 TANVd 85422 MAIA WOLLO dOL 078 1454 SA 33 89 6 dALG6L 9 dol V Wad 335 392 1 0 dAL 104100 28 INOLLOS V Il v 13d S3OV ld r dAL 8 S3OV ld 2 dAL AHLIN3 d334ans WOLLOG
85. HOV LLV 103S SIS OL 689 290 1495 ONIHIA NOLLO3NNOOMH3LINI Z STIVL3Q0 0 ONIMVWHC 33S NOILO3S SIS JHL NI Q3ddlHS ANY 11 OL GSHOVLLV JYV SYVESNE TVHIDSN 9 Z LAL OL LL NOLLO3NNOOMH3LINI 1 SALON uvasna Q3AOWZ3S STANVd TWH LOAN LN329V HLIM uvasnd LL YINWHYOJSNY HL YAWYOASNVYL 00942 0000 Dnsueoen 9 o o H ZH LH 5 6LOLLdSd NOILO3S 33s 020lLbdSd S9NIAVHO 33S o uvasng 81 130 g 2011 484 3 3 NOILOJS vuvasna 398 OZOLLdSd 9NIMVSO 33S ud ouvasnd 515 8 uvasfia V uvasnga NOLLO3S NOILO3S NOILO3S N 4 518 518 51 Installation Drawings Figure 42 Electrical field connections 800A Liebert STS2 PDU interconnect wiring left side one line with 0 42011464 STIVL3O 1201 45 335 1935 bled JHL NI GaddIHS ANY 5 5 OL GSAHOVILV 1936 1544 OL 9 3 5 5 HAHA ONIMIM 1 STIV L3O 4020 464 9M 33S 1046 JHL NI GaddIHS 99 9 290 180 OL GAHOVLLV 1938 SIS OL V 8O 9 90 149 ONIMIM 2 S TIV L3G 6101 454 9NIMYSG 33S NOLLO3S 515 JHL NI 034415 ANY LL OL GAHOVLLV 5 508 TVHLO3N 8 6 21410111
86. HasWyeOutputXfmr bit HasExternalPrecisionTimeSource bit6 HasSFA bit7 HasRemoteSourceSelect bit8 through bit15 not used set to 0 Comms Options 1 bitO HasIntModem bitl HasExtModem bit2 HasNIC bit3 not used set to 0 bit4 HasSiteScan bit5 not used set to 0 bit6 not used set to 0 bit7 HasOpenCommsDigitalInputBrd bit8 HasOpenCommsDigitalOutputBrd 1 bit9 HasOpenCommsDigitalOutputBrd 2 bit10 HasRemoteStatusPanelBrd 1 bit11 not used set to 0 bit12 not used set to 0 bit13 not used set to 0 bit14 EnableDialIn bit15 EnableDialOut Comms Options 2 bitO EnablePager bit1 EnableOCDINormallyClosed bit2 3 OCDO1Assignment 0 User Defined 1 Standard Set 2 AS400 bit4 5 OCDO2Assignment 0 User Defined 1 Standard Set or 2 AS400 bit6 through bit15 not used set to 0 91 Communication Interfaces Critical Option Enabling bitO EnableManual_IPeakReset bit1 EnableAutoRestart bit2 through bit15 not used set to O Non Critical Option Enab EnableAutoReXfer bit1 through bit15 not used set to 0 The bits are set in reverse order from bit 15 on the left to bit 0 zero on the right The bits are grouped in four sets of four bits each as such 0000 0000 0000 0000 Since each bit represents a setting a bit can be enabled or disabled 1 installed option or enabled feat
87. ILENCE button is pushed See Event Masks on page 99 for instructions on setting the mask type via the touch screen display See the 12 1 4 Setting Event Masks with the Terminal for instructions on configuration using the RS 232 port 81 Alarms and Faults 11 2 1 Event and History Logs The system tracks events through the Events Log and tracks significant events through the History Logs These logs allow you to quickly spot trends or diagnose problems that the unit may have had Both logs are written in nonvolatile memory The logs can be accessed from the touch screen menu or the RS 232 port See 13 7 1 Logs for more instructions on viewing the logs from the touch screen See Table 12 for the RS 232 interface com mands used to access the logs Event Log The events are tracked in sequence of occurrence The sequence of occurrence is identified by date time and frame number The last 512 events are stored in a nonvolatile memory and can be viewed from the Event Log Event logs wrap meaning when the log is full the oldest event is deleted when a new event is written to the log The Event Log tracks 4 the sequence number in which the event occurred since the log was last cleared Message the event that occurred such as Ambient Over temp Source 1 Fail etc either a Fault or Alarm See 11 0 Alarms and Faults for further details on these events D the event identifier Date and
88. INPUT CONTACT 722 Input Contact Isolator 2 Occurrence of the indicated external event has been detected by Input Contact Isolator 2 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 139 Event Message Help Text INPUT CONTACT 3 Input Contact Isolator 3 Occurrence of the indicated external event has been detected by Input Contact Isolator 3 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on y
89. L SLNIOd NOLLO3NNOD TOYLNOD HSINOTSPIS E 60 Installation Drawings Figure 51 Control wiring for the input contact isolator board option NO CUSTOMER CONNECTION INPUT CONTACT ISOLATOR BOARD 02 810012 PS213002 Rev 02 Table J51 NOTES 1 Customer control wiring connection points are Terminals 1 through 16 Input see Table J51 Contact Pin No 2 Customer provided normally open dry contacts for user alarm messages 2 3 Refer to installation operation AND maintenance manual for configuring the 1 input contact isolator board option 2 4 All control wiring by others must be run separate from power wiring Control 3 wiring runs should not be combined in the same conduit 2 5 Refer to static transfer switch control connection diagram for location of input 4 contact isolator board option 5 6 Signal voltage 100 12VDC 3 7 Maximum cable length 500 ft 152 meters with 16 AWG flexible stranded cable 6 8 All wiring must be in accordance with national and local electrical codes 7 4 8 9 5 10 11 6 12 13 7 14 15 8 16 61 Installation Drawings Figure 52 Control wiring for comms board EXTERNAL MODEM SEE DETAIL A 200000000 CUSTOMER CUSTOMER CONNECTION SEE petai p CONNECTION COMMS BOARD 02 810015 XX CUSTOMER SU
90. L SSYIM HOV LIV 9 SIS 40 q 5 NI NMOHS SV 641 ANY SLO NMOHS LON I3NISVO NOLLOAS WO SAMIM O3138V1 AVL 54 SNOISNAWIC SALON suVasng JHL OL S3HIM HOVLLY O a ASVHd ADYNOS Q9 O a V6ZM 3SVHd 8 o 8 v92M 3SVHd dOHnos QSAAOWSY L330V88 ASN HLIM 2 a vec 4d ANOILOAS 8 3SvHd 5 O 8 viz ASVHd L3Ounos 058 o a vezu g83svHd 4100 a 9 o 8 v scM ASVHd 2 FOYNOS VASVHd 1 Q9 VrcM VASVHd Z NOILO3S 515 Q3AOW3H STANVd NOILOAS SLS Q3AONWHH STANVd IN3OOV HLIM LNO J NOILO3S 33S a dAL 9310H 812 0 0 NOILO3S a 5 3 3NOILO3S 3 3 NOILO3S 338 1 38vHd 109110 l3NISVO 515 JO NOLLO3S 9 I3NISVO H3XV338 NOWJ AYIA JAOW OLQ92 8vV ZM a a NOILO3S Y ISYHd Z JONNOS 0108 O 8 VrZM NOM LINN 9 ASVHd 5 1 9 83svHd lfdlno 0108 O 8 vezM ASWHd 0108 O 8 vozw 3SVHd 0108 O a VETM dsvHd OLG O 8 VIZM g8asvHdldoOunos 0108 8 22 ASVHd 05 OLG O 8 VEM 49 Installation Drawings Figure 40 Electrical field connections
91. LLdSd Svasfna aNnoo 8620 AAT P 651 5 Id 8 WWI OL S3OV ld 9 AW v1 vid 9s TIV LHGO vasa LNdNI 8060 S 599 ret St 62 1 54009 1v9IHLIO9313 19201 ANY TWNOILVYN HLIM JONVOSHOOOV NI 38 OL 51 TIV S Q3ON3WINOO38 LON Sd 18VO WANIANN TY H3ddO9 ANY WANININTY Sd 18VO LAdNI LINANOO d1EVHVdas V NI NOH dad qinoHs Sd 18Vv9 LAdLNO LINGNOO 31vsvdas NI 38 LISAN H3AMOd ANY 1OHJINOO Suvasna aNnoso 9 ASWHd SH3l3NWITIIW S3HONI NI SNOISNAWIG TIV SALON STANVd LNADSV 8 SHOOQG LNO J vlad svasna 33S NOILO3S 395 v 299 999 cdo vego 99 sgo rgo NOILOAS uva SWHvasna Hr 4 5 31V201 SI NMOHS LON 4vdasna aNnouo avasnd LAdNI 33S ADYNOS Q3AON3 514 IN322V HLIM 3GIS 1441 5 39 Installation Drawings Figure 30 Electrical field connections 250A Liebert STS2 PDU output with inline panelboards 0 00LLdSd Q3AOWNWZMS TANVd 3415 HLIM LNO4J NOILOANNOO 104100 1189 444805 mE LETT He ES NOILOANNOO LAdLNO 0189 qaaasns SNOILO3NNOO 1 STANVd INdg
92. LdSd 9NIMVHO OL 2 NOILO3S SLS AHL Q3ddlHS ANY LL 01 Q3HOVLIV 8 998 etl ex SHvasna IWHYLNAN 62418101 NOLLO3NNOOH3LNI TL 9951 9 x adri 8 reaL ex S310N ZX 8 2261 eccal LX ggEL 9 1 91 LX 22 ddeevve lal H zeal egl ub 888 9 VY8 cigL ZH ggz 9 YYZ LH T DEBE WW 21 E T czal vid 09 3HIA OL LL og cal mM NOILOAS OL NOLLO3S 515 4 T bal ONIYIM NOILOANNOOYSALNI NOILOAS 13 NOILOAS 515 810484 338 NOILOAS 2 2 NOILO3S Mouse ENG 8 NOILO3S ONT V V NOILO3S NI 81140 HV8S 8 AWYLNAN uvasna 675 13 g eal 9 8 c Ei S3OV ld Gt vU Vid 99 S3OV ld 9 867 er ERES 45 He she og CTAIHS OX ZX LX CH 48 Installation Drawings Figure 39 Electrical field connections 800A Liebert STS2 PDU interconnect wiring STS section 0 02011454 IN3OOV MAIA 4015 LHOTH 13NI8VO NOILOAS 8 0 454 395 6 751 140 44 4 NOILOAS 448 LANIGVO 515 NI SYvVEasndg O
93. OAAV ATIVENLONALS SIINOLLEOS LINN Z ALIHM 33O WEI 9 3 TIHAA IVOLLH3A 40 930 Sb NIHLIM L3NISVO d33 A INO 315 1 LNO82 NI CAYINDAY SSdOOV 5 NOLLVTIVISNI t GSYINDSY LINN 3AOSV NINZSV 81 1091 SAT 08 IHOIJ3M XO lddV Z SMa3Lanr TIN SIHONI NI IHY SNOISNANIG L SALON aZ LX SZL Z LINANOO IOLLOS INO LLOGH V IIVL3G 338 LINGNOS TOYLNOD WOLLOS Vb AWHLN3 LINGNOO WO LLOS dAL MALTA MOO1d LON Od HIY wad 18 wings Installation Dra 0 4081454 540 151 M SHOOQ TIV SNIMS SHOOd LNO H4 001 MAIA dO L SS3XV3u8 OL TANVd 553295 Q39NIH FS 8 VJHV AM LNA E LINGNOSD dol SHEN Cod g IIV L3d 33S S39V ld INO LLOS Z dAL V3HV LINGNOS 1ndino WOLLOS Xat vc VAN AHLN3 LINGNOS LNdNI v viaa 33S 6 8540 14 pA E AAL dAL AHLN3 SY XH WAU 88 d3348ns AHLN3 LINGNOO INOS WOLLO JOYLNOD udi TANVd 3dis 1 NAAOHS LINN JO INOW T
94. OLLOd ANY 2218 LINGNOD LINS OL HONNd 3AOINSH SALW Id SSAOOV 3 IHVAOW3S ATEVIVAV 3 18V9 INO LLO8 ANY dOL 01 44 X X 1 325 THvSOdSIQO HAL 39V 1d38 OL SYOOd N3dO 6 ONUIONVH LAAYO 31vno3aav ATIVENLONYLS SI WOLLOS LINN 8 411775 80 04209 104100 1V3H 1 ILIHM Wal 9 ONUIONVH 3 1IHM IVOLLH3A 40 O30 9 NIHLIM LANIGVO 9 3018 1 ONY LNOYS NI GSYINOSY S 309Y 3OIAH3 S NOILVTIVLSNI LS0VHX3 Jod aaslnoag LINN 3AOSV 3ONVMHV319 14101299 81 66 6 58812968 LHOISM XOuddv 2 TIN S3HONI NI SNOISN3IIG 1 SALON MAIA 5 LHOIS v6v 442 X 06 LINGNOD TOYULNOD dol TANVd SS322V GADNIH MALT 390 18 LON OG V3MY 3XVLNI 1213 96D lIldS 0G 111 6 6E 9NIddIHS 8vvD 6 96 SNIddIHS ETT gore 26 wings Installation Dra Figure 17 Outline drawing 800A Liebert STS2 PDU with right side inline distribution 0 08114654 340 134 M SHOOT TIV dAL 9NIMS HOOT 028 488 X ES Vddv LINGNOD 1 44 06 dol dAL 6L V 1 395 S3OV ld P dAL
95. OOV SHOOQU H LIM MAIA 3415 1441 uvasnaaNnose T3NVd NOILNGIMLSIG OL GALOANNOO S GNNOYS q318V9 NOILOSSLLSIO SNOILO3NNOO2 ANNOYS Sng WYHLNAN 13NYd OL Q3193NNOO S TVULNAN Sd gvo 5 2 50 1510 dlOder CIVNOILLdO 01 82 aaadans IVNOLLdO 1182 aayy 349 aaadans 699 8 889 NIVIN QHVOSTINVd 40 Installation Drawings Figure 31 Electrical field connections 400 800A Liebert STS2 PDU output with inline panelboards 20 000 454 TANVd ACIS H LIM LNO J NOILOANNOO 104100 6189 daaadans NOLLO3NNOO 104100 2189 uvas qaadans QSAQWAY S THNVd IN32OV SHOOQG HLIM A IA ACIS 1441 uva sna aNnoso NOILRSIHLLSIO OL S GNNOYD 318vo NOILNEMILSIC SNOILLOANNOO ANNOYS uvasnga WYLNAN T3NVd NOILNGINLSIC OL Qa3L193NNOO S 1VWHLNAN S318v2 5 SNOILO3NNOO IWYHLNAN IHNVd NOILNGIYLSIG 410d 699 8 892 GYVOd1aNVd 0145 9 1189 NIVIN QHvOS TJNVd IVNOI LdO Z199 aaadans IWNOILLdO 189 aaa4ans 41 Installation Drawings Figure 32 Electrical field connections Liebert STS2 PDU output with I Line panelboard WW 201
96. PPLIED CUSTOMER SUPPLIED INTERCONNECTING CABLE INTERCONNECTING CABLE TO EXTERNAL MODEM TO LIEBERT SITESCAN SEE NOTE 2 SEE NOTES 1 amp 2 J81 TB 55 PS213003 DETAIL A DETAIL B Rev 02 NOTES 1 Maximum cable length 1000 feet 300 meters with twisted pair cable 22 AWG 300V minimum 2 Signal voltage 5VDC current 10mA 3 Refer to installation operation and maintenance manual for configuring the COMMS board 4 All control wiring by others must be run separate from power wiring Control wiring runs should not be combined in the same conduit Refer to control connection location diagram of static transfer switch for location of COMMS board All wiring must be in accordance with national and local electrical codes e o 62 Installation Drawings Figure 53 Control wiring for the Liebert IntelliSlot Web 485 Card With Adapter option LO 800 1L2Sd e qeo pod jeues pJepuejs Ajuo dnjes 10 10j2euuoo 6 8Q ZEZ SU uonoeuuooJoeju pue S9joN peijddng Jeujojsn2 J0 29uu02 Gp 4Y 5 er 6 ad OMJON 19UJ9u13 eal 91 zal bal CD eou1oe e edo pue Jeuoneu eouepJoooe eq Iv 9 uondo Sgp q9M 1018111910 Jo 10 616 Jo
97. Power logo are trademarks and service marks of Emerson Electric Co 2007 Emerson Electric
98. RS 232 Port RS 232 serial port is provided to allow an external terminal to be connected as another user inter face See 12 1 Using the RS 232 Port for more information 73 Operating Instructions 10 0 OPERATING INSTRUCTIONS 10 1 Before unit is placed into service for the first time after equipment relocation or after the equipment has been de energized for an extended period a thorough equipment inspection and supervised startup by qualified personnel are strongly recommended Contact your local Liebert representative or Liebert Services at 1 800 543 2378 to arrange for equipment inspection and startup After the initial equipment startup the following operating guidelines can be used for standard equip ment operation These guidelines should be reviewed for any special equipment modifications special site conditions or company policies that may require changes to the standard equipment operation All programmable functions are preset at the factory to enable the unit to be brought up without the need to enter all selectable parameters The LCD touch screen is discussed in more detail in 13 0 Touch Screen Display See Figures 23 through 36 for circuit breaker locations Normal System Turn On 1 Depending on the type of distribution used If equipped with output breaker CB8 open CB8 If equipped with output inline panelboards open panelboard main breakers CB8 and CB9 and if supplied CB10 and CB11
99. S EF NOILO3S 515 NOILNGIYLSIG AHL LOANNOO 55 Installation Drawings right side distribution 800A Liebert STS2 PDU Figure 46 Control wiring 0 ZO8ElLdSd SEND OL SEND vEND OL VEND LENO OL LENO OM1d S2NO OL ScNO SLNO OL avo SLNO 3H L LO3NNOO NOILOAS NOILNAIYLSIA QSAOWSY STANVd LNADOV HLIM LNO 4 YOLINOW aa DE NOILO3S NOILO3S EF 4 515 56 Installation Drawings Figure 47 Control connection location 250A Liebert STS2 PDU 0 00261454 NOLLdO 3OVJH3LNI NICON 1 NVOSALIS SWINOO jeydepy uj cgr qeM 1015 9 4 ueqen Z ALON 33S NOILdO AV T38 3 18VIAINVHOOMd HO NOLLdO LOVLNOO LONI ALON 33S NOILdO 3 T18VIWINVHO Oud Z ALON 33S NOILdO AW 138 18 NOILdO 194135 AOYNOS ALOWSY 13601 38 NYO OML JO INDINIXVIW 2 NAOHS 38V SNOILdO TVOIdAL 1 SALON NOILVOOT NOILdO HOOG 1 4 LINOJ TOHINOO NOILVOOT NOl LdO 335 57 Installation Drawings Figure 48 Control connect
100. S2 PDU This display imitates the power flow through the Liebert STS2 PDU and indicates source status breaker status switch status source voltage and current readings output power measurements and active alarm messages See Figure 61 Event Controls The STS 2 detects events when certain thresholds are passed or certain problems occur The alarm controls allow you to acknowledge the existence of these events RESET All latched events whose conditions have cleared are removed from the Event Display Faults and alarms that remain active or are not recoverable are not affected when this button is selected This button is also used to perform manual I Peak resets and manual retransfers SILENCE turns off the audible alarm horn or beeper without resetting the triggering event This setting does not permanently turn off the horn The alarm sounds again when the next event with an audible alarm setting is triggered Active events are shown in the Event Display whereas cleared events can be reviewed via the Event Log Event Display The Event Display lists the condition of the Liebert STS2 PDU in real time Both nominal system parameters and alarm messages are displayed in the Event Display You can touch any message in the Event Display to display more information in the Display Panel to the left The selected status is displayed in bold type Menu Bar As previously mentioned the menu bar provides both configuration choices and
101. S2 PDU are highlighted on the Mimic screen indicating which side of the Liebert STS2 PDU is on Close Output Breaker CB3 for redundant output configurations also close Verify that CB3 the Output box and the Load box are highlighted indicating that CB3 is closed and the STS output is energized On units with I line panelboard the panelboard is also energized NOTE For redundant output configurations CB3 descriptions apply to CB8 and 11 12 13 14 15 Press the RESET button on the touch screen to reset any previous alarms Check the Event Display and the Mimic to verify there are no active alarms If any active alarms are displayed refer to 11 0 Alarms and Faults for a description of the alarms and possible causes Correct all active alarm conditions before proceeding If unit is equipped with output breaker CB8 close CB8 The output and load are energized If unit is equipped with output inline panelboards close panelboard main breakers CB8 and CB9 and if supplied CB10 and CB11 Turn on panelboard breakers If optional subfeed breakers are supplied close subfeed breakers CB12 and CB13 Turn on the load equipment as directed in the load equipment manufacturer s recommendations 75 Operating Instructions 10 2 Manual Transfer Preferred Source Selection The Source Transfer option Source Xfers in the touch screen menu allows you to select a preferred source Transfers are only per
102. SAVE to keep the settings The Health Check dialog box is closed and the Modem dialog box is again active c Select YES in the Modem dialog box to activate the Modem Health Check If you select NO the Modem Health Check is not run 12 Configure AUTO DIAL IN Auto Dial In allows a user to dial into the Liebert STS2 PDU through the modem to check status and access the system via a hyperterminal connection a Select YES to activate the dial in feature b Select NO to deactivate the dial in feature 13 Configure AUTO DIAL OUT Auto Dial Out allows the Liebert STS2 PDU to automatically dial out to a system to notify a user of an event or status a Select YES to activate the dial out feature b Select NO to deactivate the dial out feature 14 Select SAVE to keep the modem configuration settings 15 Select YES in the Comm Options dialog box to activate the settings You are returned to the Comm Options dialog box Configuring the Input Contact Isolator Settings The Input Contact Isolator ICI is an optional eight channel input board for up to eight external user alarm or message inputs to be routed to the Liebert STS2 PDU s alarm network The contact is set to either be normally open or normally closed When a contact closes or opens an event is triggered See 6 2 Input Contact Isolator Board for more information on the ICI The Input Contact Isolator options are configured through the Input Contact Isolator dialog box which
103. Shutdown in Maintenance Bypass 80 ALARMS AND FAULTS 0 6 ve ween Ch OO deren a 81 BEyent Mask waistcoat nari ao NA Bea teem RN CENE eae A i 81 Event and History o uq Cer VENUE SGA MESRINE es 82 11 251 Event enis 82 11 92 91 e History Lotnie er ECT I ets 83 Alarm NOEs Sa beata ede a dau psc 83 Listiof M Sssag s bates eo bees sued uas E ES 83 12 0 12 1 13 0 18 1 18 2 18 8 18 4 18 5 18 6 18 7 18 8 14 0 14 1 14 2 COMMUNICATION INTERFACES 86 Using RS 232 Port goa a eh yb aE as GA SR e a WN Red 87 12 1 1 Connecting and Using a 87 12 1 2 Configuring the Liebert STS2 PDU via the 88 12 1 3 Setting Bitpacked Options With the Terminal 91 12 1 4 Setting Event Masks with the Terminal 93 TOUCH SCREEN DISPLAY Eu r mains a Ei eae eee S 95 Display Overviews uus iaces esie etre boe eee Up PU trice See Rete due 95 Overview see ee RR e d Vedan ia ONU URNA 96 tits Ps a
104. T 8 Input Contact Isolator 8 Occurrence of the indicated external event has been detected by Input Contact Isolator 8 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CONFIG MODIFIED Configuration Modified A setpoint has been updated and saved The event was written to the Event Log if so configured PASSWORD CHANGED Access Password Changed The password for accessing the HMI touch screen options has been updated and saved The event was written to the Event Log if so configured TIME REPROGRAMMED System Time Reprogrammed The system s time setting has been updated and saved The event was written to the Event Log if so configured DATE REPROGRAMMED System Date Reprogrammed The system s date setting has been updated and saved The event was written to the Event Log if so configured EVENT LOG CLEARED Event Log Cleared All past alarms and faults are no longer recorded in the system s event log This event wa
105. T CONTACT 7 DELAY foo INPUT CONTACT 8 DELAY oo Save Cancel Select INPUT CONTACT 1 A keyboard is displayed to allow you to enter the name of the alarm Enter the name of the alarm set for that input For example a fan problem could be indicated by naming the button FAN Select OK on the keyboard to keep your label Select DELAY A keypad is displayed prompting you for a delay time in seconds for a condition to exist before the alarm is triggered Enter the delay value The range for the values are from 0 zero to 99 9 seconds Select OK on the keypad to keep your setting The value you entered is displayed in the field adjacent to the corresponding input contact Repeat Steps 2 to 7 for each input contact Select SAVE after you have configured all input contacts Be sure to select Save even if you have accessed this dialog only to change a setting Enter the settings in Table 31 Input contact isolator settings record This information is not saved if control power is removed Select OK in the Comm Options dialog box to activate the settings 107 Touch Screen Display Configuring the Programmable Relay Board Settings The Liebert STS2 PDU can contain up to two programmable relay boards PRB that can trigger an external device when an event occurs in the Liebert STS2 PDU For example if Source 1 fails an external light flashes See 6 1 Programmable Relay Board for more information on
106. TS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB5 81 BYP CLOSED Circuit Breaker 5 Source 2 Bypass Breaker Closed Circuit breaker 5 is not open The input from Source 2 is bypassing the Liebert STS2 PDU Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB3 OUTPUT OPEN Circuit Breaker 3 Output breaker Open Circuit breaker 3 is not closed This circuit breaker is assigned to the output load The power flow to the load cannot flow through the Liebert STS2 PDU Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on you
107. Time when the event occurred Faults the number of fault events logged Alarms the number of alarm events logged User Alarms the number of alarm events logged that were triggered by user created alarms such as those alarms created with the Input Contact Isolator settings Total the sum of all the events currently logged 82 Alarms and Faults 11 2 2 History Log 11 3 11 4 When a designated major alarm occurs the History Status buffer is frozen capturing 64 sequential frames before and after the alarm condition When the History Status buffer is frozen a History Log is created Two History Logs are available to track major alarms This log includes the triggering event plus the surrounding events and the system voltages currents frequency power source selection and breaker positions at the time of the event The History Log displays the 64 sequential frames in 4 millisecond intervals of the Present Status screens surrounding the event If you are viewing the log from the touch screen the Mimic and the Event Display show the data that was present as the alarm was triggered The data is displayed as frames are played The History Log allows you to replay the events leading up to the alarm and the events right after the alarm to see the status of the switch at that time and diagnose the cause of the alarm The History Log is triggered when certain events are tripped that have the Freeze option enabled
108. URN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 132 Event Message Help Text LOAD ON ALT SOURCE Liebert STS2 PDU load on the alternate source The Liebert STS2 PDU is running on the alternate power source Check the Event Log to determine the reason for the transfer from the preferred source Another event has caused the system to transfer to the alternate source The system returns the load to the preferred source either automatically or manually depending on how the system is configured In automatic reset mode the Liebert STS2 PDU automatically retransfers to the preferred source after the causal condition clears In manual reset mode the system remains on the alternate source after the causal event clears until you select RESET from the touchscreen or enter CA Clear Alarms from a service terminal NOTE Pressing the RESET button returns the unit to the preferred source Ensure that the condition that triggered the switch has been rectified before returning to the preferred source Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal
109. VvHX3 LINN 3AOSV 3ONVHY3TO NINZST 81 009 DAZE 58108698 88100Zv VOOr 2 SH313IATTIIA ONY SSHONI NI SNOISNINIA 1 SALON 488 X 18 VAYV AYINI LINGNOD 1OHLNOO WOLLOd NOUS H4114 X90784 ASIA LNOYS LON HIY pt 996D eel 1 S3OV ld dAL wl YAMOd LNdNI dOL I dOL NA v6v 33O L3I1 SHOOQ dAL ONIMS YOO 02 LSNWHXa 10961484 33S 89 X 6 LINGNOD dol 3dIS 1331 pK ow SE 24 wings Installation Dra Figure 15 Outline drawing 400 600A Liebert STS2 PDU with left side output breaker or I Line distribution 10 2091 454 MalIAWOLLOd dOL S3ONIH 340 141 SHOOQ Tv dAL ONIMS HOOT 021 9 Ey 88 612 0 vauv 0 dAL LINGNOD NH3MOd LINGNOD LNdNI WOLLOG OLIO 488 X 4 8 LInQNO2 1041NO2 WOLLOS LX VAM AYINI LOPELdSd 33s 89 521 iNous dOL LINGNOD TOH1NOO 401 LINS OL SAOWSY Sa ely ois LNOHJ TON AMYINI
110. WINZS 8L sd109c6 v009 OWZELZ Sg1002r LHOISM XOHddV 2 SH313AITIIW SIHONI NI SNOISNINIG SALON Figure 13 Outline drawing 400 600A Liebert STS2 PDU with right side output breaker or I Line distribution 99 X Z9 V3dv AHLN3 LINGNOO JlOHLNOO WOoLLOga Y7 49018 LON OQ IV vu 9961 23 wings Installation Dra Figure 14 Outline drawing 400 600A Liebert STS2 PDU with left side inline distribution V0 20911 454 Z AHLIN3 LINGNOD WOLLOG V IIVI3O 33S S32V Id dAL AMIN3 LAdLNO INOLLOg b 88 SHOV ld 2 AHIN3 LINGNOD dqaa4ans ANY 3ZIS LINGNOO LINS OL HONNd SAOWSY 541914 SS399VY 3 IHVAOIWJH 18V IIVAV AHIN3 3 18V9 INOLLOS8 OL X C X IZIS 3 la8vsSOdslId 3L 1d OL S HOOU N3dO 6 ONFIONVH L3IT4803 Wodarvnoaav ATWHYNLONALS SI INOLLOS LINN 8 HH MM 8878 YH NLE 002 06 009 HH MM 06 S HH n L8 0t L OZ XOYddY 00 LV3H 4 S1IHM 440 AI 9 ONFIONVH 3 IIHM TVOLLS3A 40 930 St NIHLIM LSNISVO d33M 9 A INO 5 133 10NV LNOYS NI GSYINDAY S8S329V 39IAH38 NOLLVTIVISNI 1S
111. YLNA TOYLNOD dol 88 X 612 2 ASLNA LINGNOD dOL 1441 v 6v 28 wings Installation Dra Figure 19 Outline drawing 800A Liebert STS2 PDU with left side inline distribution 0 60811464 00 012 WOLLOd 4216 LINGNOD LINS OL HONNd SAOIN3H SALV1d SSADOV ATEVAOWSY HONOYHL 3 18V IIVAV 3 18V9 ANY dOL OL 4 X X 325 AdAL 3 TavSOdSIQ HALA 39V Id38 OL SHOOd N3dO 6 ONUIONVH 1 ATIVENLONYLS SI WO LLOS LINN 78 404100 1 12 YH NLE 02 ALIHM 440 WEI 9 ONUIONVH TWOILYSA 40 930 9 NIHLIM LANISWO 9 AINO 3915 1431 ONY LNOYS NI GSYINDAY SS322V 5 ANY NOLLV TIVLSNI LSNWHX3 GAYINOAY LINN 3ONVHV37O NINZST 81 Dw 6 88129868 1HOI3M XOYddY 2 SYSLSWITIHIN SSHONI NI SNOISNANIC 1 SALON WO LLOSg SHONIH 5540 1411 SHOOT TIV ONIMS YOO 081 dOL 99 062 VINV H3MOd dol 6L V 117130 33 5391 P dAL AMLNA ALINGNOD 1 WNOLLOS ul X 9 S3OVId 2 dAL YJHY AHLN3 LINGNOO a C TANYd SS322V
112. age If any shipping damage is observed file a damage claim with the shipper within 24 hours and contact your local Liebert representative or Emerson Network Power Liebert Services at 1 800 543 2378 to inform them of the damage claim and the condition of the equipment 3 Locate the bag containing the keys for the front access door The bag is attached to the cabinet 4 Compare the contents of the shipment with the bill of lading Report any missing items to the carrier and to Liebert Services immediately 5 Check the nameplate on the cabinets to verify that the model numbers correspond with the one specified Record the model numbers and serial numbers in the front of this installation manual A record of this information is necessary should servicing be required 6 If unit is to be stored before installation it is recommended to store the unit in a dry environment with temperatures in the range of 40 to 176 F 40 to 80 C Use original packing materials or other suitable means to keep the unit clean When opening the shipping crate use care not to puncture the container with sharp objects 1 2 Unloading and Handling A WARNING Risk of heavy unit falling over Can cause equipment damage injury or death Locate the center of gravity symbols and determine the unit s weight before handling the cabinet Do not exceed a 15 degree tilt with the forklift Read all instructions before attempting to move the unit lift it remove packagin
113. aker Verify the Source 1 and CB1 breaker status on the Mimic screen Close output breakers CB3 and if supplied Verify CB3 and breaker status and STS SOURCE 1 and OUTPUT boxes are highlighted on the Mimic screen Open bypass breaker CB4 Rotate the keys in CB4 interlock to extend the interlock Remove the proper key from CB4 interlock and insert it into CB2 breaker interlock Rotate the key to retract the CB2 breaker interlock Close source input breaker CB2 Verify the STS SOURCE 2 box and CB2 breaker status on the Mimic screen Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 60 78 Operating Instructions 10 4 2 Bypass Procedures for Source 2 To bypass the switch for Source 2 NOTE If you wish to bypass the Source 2 static transfer switch but Source is presently active you must first transfer to Source 2 See 10 2 Manual Transfer Preferred Source Selection 1 Verify Source 2 is supplying power via the Mimic Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 60 Remove the interlock key from CB4 and place it in 5 interlock Open the alternate source input breaker Rotate and remove the interlock key Insert the key in the CB5 bypass breaker interlock Rotate interlock keys in the CB5 bypass breaker inte
114. an be installed through the top or bottom of the unit through removable conduits plates Units with output inline panelboards are bottom exit only for output cables Unless otherwise labeled use the recommended tightening torque shown in Table 28 See Figures 12 through 21 for wiring entrance locations 4 1 Input and Output Power Connections The input power connections are made to the busbars provided inside the unit see Figures 26 through 31 These busbars are accessible through the front of the unit Output power connections are handled two different ways depending on the type of distribution used Power connections on standard units with an output breaker are made to the busbars inside the unit These busbars are accessible through the front on 250A units and on the side on 400 800A units See Figures 26 through 31 for details on the busbars Power connections on units with panelboard distri bution are made directly to the panelboard breakers Busbars are provided in the output cabinet for ground and neutral connections A WARNING Risk of electric shock Can cause injury or death Verify that all input power and control circuits are de energized and locked out before making connections inside unit The two input power feeds sources to the Liebert STS2 PDU should be from two independent sources to avoid a common source failure To ensure proper operation of the Liebert STS2 PDU the two input sources must be the same nomi nal voltag
115. ard units are designed for full load operation up to 4000 feet 1200m above sea level See Figure 1 for recommended deratings for altitudes greater than 4000 feet 1200m Figure 1 Recommended derating for high altitude operation 96 D N 94 90 88 86 Sea Sala So Sao 2222F 2e Sa ge en Dm e amp io I ip 00 oe oF TAN aD OL oO KINN SJ 21 00 EN og Sg y Altitude Feet M Above Sea Level Operation at full load at a higher altitude can be accommodated in ambient temperatures less than 104 F 40 C ambient Figure 2 shows the maximum allowable ambient temperature for full load operation at altitudes above 4000 feet 1200m Figure 2 Maximum ambient temperature for full load operation at higher altitudes 104 0 40 o PB 932 34 Q E 94 1 33 I 89 6 32 87 8 31 86 0 30 CUT Oe Oa Oe 2 CU Ss SRSA 2 8 o 5 89 28 5 2 28 SF VOD aw 013 oL wq SALLON Sog cm Locating the Liebert STS2 PDU 3 0 LOCATING THE LIEBERT STS2 PDU 3 1 3 2 This section provides instructions for leveling the Liebert STS2 PDU and anchoring the unit to the floor should that be required Anchoring the Unit to the Floor The Liebert STS2 PDU can be anchored to the c
116. arm condition has cleared and the RESET button has been pressed E By default all faults and alarms are written to the Event Log See 12 1 4 Setting Event Masks with the Terminal All of these functions except Freeze can be reconfigured to trigger for each event using the Event Mask option See 11 1 Event Mask The Freeze function is hard coded and cannot be changed for a event 83 Alarms and Faults Table 11 Event messages ID Alarm Message Description Cause Action 1 51 SCR SHORT One or more of the SCRs for Source 1 have shorted and failed D F AE 2 S2 SCR SHORT One or more of the SCRs for Source 2 have shorted and failed D F AE 3 S1 SCR OPEN One or more of the SCRs for Source 1 is open D F AE 4 S2 SCR OPEN One or more of the SCRs for Source 2 is open D F AE 5 PRIMARY FAN FAIL DAE 6 CONTROL MODULE FAIL Control logic module has failed D A E 7 PWR SPLY DC A FAIL Power supply DC bus A has failed D E 8 PWR SPLY DC B FAIL Power supply DC bus B has failed D 9 PWR SPLY S1 AC FAIL Power supply Source 1 AC has failed D A 10 PWR SPLY S2 AC FAIL Power supply Source 2 AC has failed D A 11 PWR SPLY LOGIC FAIL A power supply module has failed D 12 OUT VOLT SENSE FAIL The output volt sense module failed D A 13 S1 VOLT SENSE FAIL The Source 1 volt sense m
117. as also written to the Event Log if so configured INPUT 2 OF UF Input 2 Over Frequency Under Frequency Source 2 is over frequency under frequency Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured INPUT CONTACT 1 Input Contact Isolator 1 Occurrence of the indicated external event has been detected by Input Contact Isolator 1 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard
118. ase UPS 800 543 2378 powertech emersonnetworkpower com Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 049 9719 111 every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no 39 049 5841 257 responsibility and disclaims all liability for damages resulting from use of Asia this information or for any errors or omissions 7 F Dah Sing Financial Centre 2007 Liebert Corporation s 108 Gloucester Road Wanchai All rights reserved throughout the world Specifications subject to change H K without notice ong Kong Liebert is a registered trademark of Liebert Corporation 852 2572220 All names referred to are trademarks Fax 852 28029250 or registered trademarks of their respective owners 51 20730 REVO3 03 08 Emerson Network Power The global leader in enabling Business Critical Continuity EmersonNetworkPower com AC Power Embedded Computing I Outside Plant Racks amp Integrated Cabinets 3 Connectivity Embedded Power Power Switching amp Controls Services DC Power Monitoring 3 Precision Cooling Surge Protection Business Critical Continuity Emerson Network Power and the Emerson Network
119. ation plus permanent level ing feet for final installation Cooling The Liebert STS2 PDU 250A units utilize convection air cooling for the enclosure with forced air cool ing of the heat sinks The 400 800A units are fan cooled using low velocity fans to minimize audible noise All fans are redundant so that a single fan failure cannot cause temperatures to increase beyond acceptable its Air intake is through screened protective openings in the front of the unit standard furnace filter 1s installed behind the openings By opening the front door the filter can be changed easily without exposing personnel to high voltage The size of the filter is 1 in x 25 in x 25 in 2 54 cm x 63 5 x 68 5 cm The air exhaust is through the top of the unit 116 Specifications 14 2 4 Access 14 2 5 14 2 6 14 2 7 14 2 8 The Liebert STS2 PDU is designed so repairs and maintenance can be done from the front side or top of the unit All components that may need repair or replacement during routine field maintenance are safely accessed with the units in bypass without removing power from the unit These components include All electronic PCB assemblies Power supply assemblies All control fuses All circuit breaker plug in modules Fans SCRs All power connections are designed to maintain proper connection torque over the lifetime of the unit without any maintenance The integrity of the connec
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121. bling Remote Source Selection for instructions on enabling the Remote Source Selection See Figures 47 and 48 for the location of the Remote Source Selection option See 4 4 Remote Source Selection Wiring and Figure 55 for information on the control wiring Key Lockout Switch The key lockout switch activates a software lockout of the touch screen display to prevent manual transfers and configuration changes When locked out the touch screen becomes a read only display A key is needed to do manual transfers or change settings The alarm silence button is not disabled when in the lockout position 15 Options 6 7 6 8 6 9 6 10 6 11 6 12 The switch is located on the front of the unit next to the display it is behind the front door but can be operated without opening the front door See Figures 20 through 22 for the key lockout switch loca tion on each unit See 13 2 1 Security and Figure 64 for instructions on using the key lockout switch Static Switch Redundant Output Breaker A plug in non automatic circuit breaker is provided which allows redundancy in the static switch out put power path The breaker is connected in parallel with the static switch output plug in non auto matic circuit breaker Inline Panelboards An output distribution cabinet with either Square D or General Electric inline panelboards with cop per bus to accept bolt in or plug in circuit breakers Each panelboard is individually pro
122. breaker for each source and a load isolation non automatic breaker Two non automatic breakers provide for maintenance bypassing of the solid state switching devices to either input source All breakers in the Liebert STS2 PDU are plug in types which allows any breaker to be replaced without de energizing the output bus The breakers have an interlock the plug in base which pre vents the switch from being withdrawn in the CLOSED position The switch trips OPEN before it dis connects from the plug in base See 14 2 5 Circuit Breakers for specifications and more information pertaining to the circuit breakers See Figures 23 through 36 for circuit breaker locations The circuit breaker schedule 1s provided in Tables 8 through 10 SCRs Brick type SCRs are used rated to carry the full 10096 rated load The unit is a fuseless design with input circuit breakers providing overcurrent protection Logic Modules The logic contains three separate redundant logic modules The modules contain the logic necessary to run the Liebert STS2 PDU and control transfers and shunt trips under all circumstances without any outside assistance once set up and started properly Audible Alarm An audible alarm is installed on the control board This alarm is triggered by an alarm condition detected on the unit The alarm can be turned off from the touch screen Turning off the audible alarm does not clear or reset the condition that triggered the alarm
123. bution dual static switch output circuit 10 Figure 6 Typical Liebert STS2 PDU one line diagram with I Line distribution dual static switch output circuit 10 Figure 7 Outline drawing 250A Liebert 17 Figure 8 Outline drawing 250A Liebert STS2 PDU with right side I Line distribution 18 Figure 9 Outline drawing 250A Liebert STS2 PDU with right side inline distribution 19 Figure 10 Outline drawing 250A Liebert STS2 PDU with left side I Line distribution 20 Figure 11 Outline drawing 250A Liebert STS2 PDU with left side Inline distribution 21 Figure 12 Outline drawing 400 600A Liebert STS2 PDU with right side inline distribution 22 Figure 13 Outline drawing 400 600A Liebert STS2 PDU with right side output breaker or I Line distrib tlon ide e Oe ae lev ek ec a BE SB RR ee T RS 23 Figure 14 Outline drawing 400 600A Liebert STS2 PDU with left side inline distribution 24 Figure 15 Outline drawing 400 600A Liebert STS2 PDU with left side output breaker or T Pan distribULlOR c tus iets ele b rs Lab ke Rd 25 Figure 16 Outline drawing 800A Liebert STS2 PDU with right side output breaker or Tabane distributions scar tee TE 26 Fi
124. ce 2 Configure the settings as described in step 3 Select SAVE to keep the settings for both sources The Setpoints dialog is closed and the User Settings dialog is displayed Select MANUAL MAX XFER PHASE ANGLE A keypad is displayed This setting configures the maximum allowed phase difference between the sources and applies to all manual transfers as well as any auto retransfer a Configure this setting with a range of 1 30 degrees The default setting is 15 degrees and the resolution is 1 deg b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box 101 Touch Screen Display 8 Select FREQUENCY TRIP POINT A keypad is displayed This choice verifies that the source is running at the proper frequency This choice sets the fre quency deviation in the frequency that triggers the frequency trip point alarm The frequency deviation setting is the allowable frequency variation from nominal 60 or 50 Hz before activat ing the frequency deviation alarm The frequency setting applies to both input sources a Configure this setting with a range of 0 1 3 0 Hz The default setting is 3 and the resolution is 0 1 b Select OK to save the setting 9 Select RETRANSFER DELAY A keypad is displayed With the secondary source being used this setting sets the length of time the switch waits until attempting to transfer back to the preferred source a Configure
125. ce filter can be used Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured EQUIPMENT OVERTEMP Equipment Over Temperature Cabinet has exceeded the recommended temperature Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured 1 UV Source 1 Under Voltage fast detection The input voltage from Source 1 dropped below a set percentage of the nominal voltage as set in the Fast UV setpoint under the User Settings An S1 Fail alarm was also issued and source transfer has been inhibited
126. chnical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 PDU system from a terminal type CA and press RETURN on your keyboard 125 Event Message Help Text S2 GATE DRIVE FAIL Source 1 Gate Drive Failure The gate drive module for an SCR for Source 2 has failed This module is contained on the left side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INTERNAL COMM FAIL Internal CAN Communications Failed Communications have failed in the CAN bus between the c
127. chnical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured PRIMARY FAN FAIL Primary Fan Failure One of the primary cooling fans for the Liebert STS2 PDU has failed The alternate fans are now running The alternate fans are not monitored Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to
128. connections 800A Liebert STS2 PDU input with and 39 Figure 30 Electrical field connections 250A Liebert STS2 PDU output with inline panelboards 40 Figure 31 Electrical field connections 400 800A Liebert STS2 PDU output with inline panelboards 41 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Electrical field connections Liebert STS2 PDU output with I Line panelboard 42 Electrical field connections 400 600A Liebert STS2 PDU with right side output breaker 43 Electrical field connections 400 600A Liebert STS2 PDU with left side output breaker 44 Electrical field connections 800A Liebert STS2 PDU with right side output breaker 45 Electrical field connections 8600A Liebert STS2 PDU with left side output breaker 46 Electrical field connections 800A Liebert STS2 PDU interconnect wiring 47 Electrical field connections 800A Liebert STS2 PDU interconnect wiring breaker section 48 Electrical field connec
129. d local codes An insulated equipment ground conductor is recommended to run with each input and output power feed The equipment ground conductors should be at least the minimum size conductor per the NEC based on the upstream overcurrent protection device A WARNING Risk of electric shock Can cause injury or death If conduit is used as a grounding means adequate electrical continuity must be maintained at all conduit connections Using isolating bushings with a metal conduit can be a safety hazard Control Wiring Connections No control wiring is needed on the standard Liebert STS2 PDU Certain options and remote monitor ing configurations require external control wiring See 6 0 Options for details The customer must supply control wiring to the Liebert STS2 PDU for connection to any monitoring or communication options Top and bottom removable conduit plates are provided for control wiring conduit Control cables can be installed through the top or bottom of the unit through removable control con duit plates A top hat is provided on the 400 600A units for connecting the top entry control wiring conduits see Figures 13 through 21 The top hat is turned upside down and ships inside the unit It must be removed from the unit and flipped 180 degrees before being reinstalled see Figure 49 The control wiring top hat does NOT contain any knockouts for conduit The installer must drill the appropriate sized holes for the conduit befo
130. d o s se XN ER 13 5 1 Customer Connections da LEER AE qaad e Ses des 13 6 0 OPTIONS ash Es D aU Roc Qua Dn 14 6 1 Programmable Relay Board 2 PLE Ae ger err erR RE TS 14 6 2 Input Contact Isolator Board c RB d RA S 14 6 3 BOSE doe nes td va ved qc Acres 15 6 4 Liebert IntelliSlot Web 485 Card With 15 6 5 Remot Source Selections 42i hb utu 15 6 6 Key Lockout Switch amicti aO ERR eee Shae CEN BED 15 6 7 Static Switch Redundant Output 16 6 8 Inline Banelboardss ies e rna RUM ES LE P ue 16 6 9 I E1ne Panelboards eR DERE yd WASSER MERE aque ORT S 16 S bf eed Breakers uuo ede E UR E MENU ede ee Sus ated ees 16 6 11 K Factor Transformers ca ics race quee Nds act Pao et qua da ILU RUP RAE 16 6 12 Surge Suppression 16 7 0 INSTALLATION 5 17 8 0 8 1 8 2 8 3 9 0 9 1 9 2 10 0 10 1 10 2 10 3 10 4 10 5 11 0 11 1 11 2 11 3 11 4 INTRODUCTION TO LIEBERT STS2 PDU
131. e bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 126 Event Message Help Text CB2 SHUNT TRIP FAIL Circuit Breaker 2 Shunt Trip Failure Circuit Breaker 2 failed to trip open when the control issued a command for the circuit breaker to trip Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard EQUIPMENT FAN FAILURE Equipment Fan Failure One of the equipmen
132. e Options Board option in the Comm Options dialog box to activate the settings Configuring the Liebert IntelliSlot amp Web 485 Card With Adapter A Liebert IntelliSlot Web 485 Card With Adapter IS WEB485ADPT can be installed in the Liebert STS2 PDU to provide Ethernet connectivity via an RJ 45 port Ethernet cabling the responsibility of the customer Category 5 cabling is required See 6 4 Liebert IntelliSlot Web 485 Card With Adapter for more information on the card See the Liebert IS WEB485ADPT installation and user guide for configuration instructions for the card If the optional Liebert IS WEB485ADPT is installed in the Liebert STS2 PDU Select YES for the Liebert IntelliSlot Web 485 Card With Adapter option in the Comm Options dialog box to activate the card 109 Touch Screen Display Liebert SiteScan Configuration An RS 422 port on the optional Comms Board provides communications with Liebert s SiteScan Lie bert SiteScan is Liebert s system monitoring software that allows you to utilize a PC to monitor the Liebert STS2 PDU s status and check alarms See 6 3 Comms Board for more information on this board If the Liebert STS2 PDU will be connected to Liebert SiteScan Select YES for the Liebert SiteScan choice in the Comm Options dialog box to activate the card Saving Your Communications Configurations To save you communications configuration settings 1 When you have completed the Comm Opt
133. e alarms can be set for either auto or manual alarm reset In the auto reset mode the alarm is reset as soon as the load current and source voltage return to are inhibited until the conditions return to normal and the user manually presses the RESET button In either case the cause of the Source 1 or Source 2 Ipeak overload should be investigated and resolved such as by reducing the overload condition or clearing the output fault before returning the switch to normal operation These events indicate a device failure The device must be replaced and the system must be restarted for the fault to clear A shorted SCR automatically trips open a source input switch CB1 or CB2 to pre vent transfers in the event of an SCR failure The SCR failure must be investigated and repaired before returning the switch to normal operation Both source input switches must be opened such as when the unit is placed in maintenance bypass for servicing before a shorted or open SCR alarm can be reset List of Messages Table 11 lists available event messages a definition of the event and the functions that are activated with the event by default The functions are indicated as follows D The indicated event initiates the Auto Dial sequence through the optional modem A The indicated event activates the Audible alarm F The indicated event triggers a Freeze of the History Log L The indicated event Latches latched alarm remains displayed until the al
134. e level and phase rotation For uninterrupted automatic transfer the two input sources should be synchronized within 15 degrees NOTICE The input sources to the Liebert STS2 PDU must be grounded wye sources Input sources other than solidly grounded wye sources may cause damage to the switch The Liebert STS2 PDU is designed for operation with 3 wire solidly grounded sources only See Figures 3 through 6 for typical one line diagrams Refer to Figures 26 through 31 for electrical field connections on all units Power Control Wiring Figure Typical Liebert STS2 PDU one line diagram CB6 CB4 OUTPUT BREAKER CB8 AN SX 2 7 A e Ne CB1 Vip RE SION 22 A Se NEUTRAL CES GROUND 9 lt a CB7 CB5 oN oN SOURCE 2 o gt o o N N pen oed SURGE SUPPRESSION I1 L 4 Ha XFMR 2 Figure 4 Typical Liebert STS2 PDU one line diagram with dual static switch output circuit breakers not available on 250A units SOURCE 1 CB4 N o o CB1 van CB3 y OUTPUT BREAKER CBS oN CB3A o oN o o3 Power and Control Wiring Figure 5 Typical Liebert STS2 PDU one line diagram with inline distribution dual static switc
135. e rear 5 Conduct an internal inspection of the unit See the list in 1 3 Internal Inspection Internal Inspection After the Liebert STS2 PDU has been unpacked conduct an internal inspection 1 Verify that all items have been received 2 Ifspare parts were ordered verify their arrival 3 After the Liebert STS2 PDU has been removed from the pallet open the door and remove cabinet panels to check for shipping damage to internal components 4 Check for loose connections or unsecured components in the cabinets 5 Check for any unsafe condition that may be a potential safety hazard After the Liebert STS2 PDU has been inspected and no problems are found the unit can be moved to its installation location If using a forklift remember to lift the unit from the rear Location Considerations 2 0 LOCATION CONSIDERATIONS The Liebert STS2 PDU should be placed in a clean cool and dry location The 250A unit without an output cabinet requires only front access for installation and maintenance Both front and side access are required for installation and maintenance of 400 800A units and 250A units with output cabinet The output cabinet comes factory installed or either the right or left side depending on how it was ordered It cannot be moved from one side to the other in the field Adequate space is required above the unit for conduit if configured as such and cooling air flow This section provides sp
136. ecific information for these considerations The unit is designed with top and bottom cable terminations to allow maximum flexibility in its installation Units with output inline panelboards are bottom exit only If bottom cable entry and exit is used sufficient cable bending space must be provided by a raised floor or a floor stand For dimensions of each unit see Figures 7 through 22 If your unit is equipped with an optional key lockout switch see Figures 13 through 21 for the location of that switch 2 1 Recommended Minimum Service Clearances The recommended service clearances are at the front and side if equipped with output cabinet The minimum service clearance required by the National Electrical Code NEC Article 110 26 is 36 in 91cm for units with voltages up to 150V to ground and 42 in 107cm for units with voltages over 150V to ground Clearance of at least 18 in 46cm is required above the unit for cooling air flow 22 Output The unit produces minimal heat during normal operation Table 2 Heat output Heat Output Switch Size BTU Hr kW 250A 12 590 3 69 400A 20 140 5 90 600A 30 200 8 85 800A 40 270 11 80 2 3 Operating Environment The unit is designed to be installed indoors where the ambient air temperature is in the range of 32 to 104 F 0 C 40 C with a relative humidity of 0 to 95 non condensing up to an altitude of 4000 feet 1200 meters Location Considerations 24 Altitude The stand
137. ed the Liebert STS2 PDU continuously checks the status of the items defined for each contact and updates the state of the relay 108 Touch Screen Display To configure your programmable relay boards for user defined settings 1 Select PROG RELAY BOARD x from the Comm Options dialog box where x is the corresponding board number The Prog Relay Board dialog box is displayed Figure 72 Programmable relay board dialog box USER DEFINED SET STANDARD SET Programming Relay 1 2 3 4 5 7 8 CB1 SHUNT TRIP FAIL CB2 SHUNT TRIP FAIL CONTACTOR NEUT FAIL CONTROL MODULE FAIL EQUIPMENT FAN FAIL 4 4 2 Select your configuration settings Select STANDARD SET to use the settings configured at the factory See Go to step 4 Select USER DEFINED SET to configure your own settings Go to step 8 If you enter a user defined setting record the setting in Table 30 If for some reason the control board 1s replaced it will be necessary to reprogram the Programmable Relay Board with this information 3 To define your relay board settings a Select a Programming Relay b Select an event you want associated with the relay That fault is placed in the Relay column You can associate up to ten 10 events with one relay If you do so you should group the events logically to simplify troubleshooting when an event is triggered 4 Select SAVE to keep the settings 5 Select OK for the applicable Programmabl
138. eight before handling the cabinet Check the unit size and weight Refer to the cabinet drawings furnished with the unit for size and weight Typical cabinet dimensions are shown in Figures 7 through 22 Typical unit crated weights are Table 1 Shipping weights typical Model Weight Ib kg 250A 3730 Ib 1692 kg 400A 4900 Ib 2132 kg 600A 5580 Ib 2531 kg 800A Module A 4052 Ib 1838 kg 800A Module B 4595 Ib 2084 kg 800A ships on two separate pallets Plan the route Review the route over which the unit will be transported to its installation location to ensure that all passages are large enough to accommodate the unit and support the weight Check for any non negotiable corners or offsets in hallways Before moving the unit to the intended location review 2 0 Location Considerations Unit Preparation The unit can be removed from the pallet before it is moved to its location Complete the following steps to properly remove the Liebert STS2 PDU from the shipping pallet 1 Setthe pallet in a level area with enough room to maneuver and remove the unit 2 Remove the bolts holding the unit to the shipping pallet located in the base of the unit 3 Remove the shipping blocks from under the frame of the unit 4 Use a forklift to raise the unit off the pallet and onto the floor On the 250A unit ensure that the forklift is clear of the unit s casters and leveling feet Lift the unit from th
139. el 2 Select the type of modem that the Liebert STS2 PDU will be using Select INT internal modem not available Select EXT if the Liebert STS2 PDU will be communicating via an external modem 3 Select the PRIMARY LINE choice to enter the primary telephone number for the modem to dial when an alarm is triggered 4 Enterthe number in the keypad dialog box 5 Select OK to save the telephone number The number is displayed in the field adjacent to the Primary Line choice 6 Select the SECONDARY LINE choice to enter the secondary telephone number for the modem to dial when an alarm 1s triggered 7 Enterthe number in the keypad dialog box 8 Select OK to save the telephone number The number is displayed in the field adjacent to the Secondary Line choice 9 Select INIT STRING to configure the initialization string This string configures the parameters of the modem Check your modem s documentation for this setting 10 Select BAUD RATE to display a dialog with the baud rate choices For an external modem select from 2400 bps 9600 bps or 19200 bps 105 Touch Screen Display 11 Configure the MODEM HEALTH CHECK The Health Check verifies that the modem is working properly This setting allows you to enable the check and set when it is run a Select the button to display the Modem Health Check dialog box from which you can access further dialogs to set the time and days that the check is run b Select
140. elect YES to enable the automatic restart Select NO to disable the automatic restart This settings requires a manual restart of the Lie bert STS2 PDU To manually restart theLiebert STS2 PDU a Select SOURCE TRANSFER from the MENU bar The SELECT PREFERRED SOURCE window is displayed b Select Source 1 or Source 2 as your preferred source The unit will restart 14 Select a setting for the RESET Select AUTO to configure the Liebert STS2 PDU to automatically reset when a fault clears and the voltage and current are normal Select MAN to require a manual reset of the Liebert STS2 PDU when fault clears and the voltage and current are normal The default setting is Manual A CAUTION Risk of equipment damage and personal injury Use of Auto Restart is site specific Do not enable auto restart unless the infrastructure is designed for unattended operation and there 1s no chance of equipment or personnel harm by automatic re energizing of the system Consult with your Liebert site engineer as to whether Auto restart should be enabled 102 Touch Screen Display PDU Setpoints The PDU Setpoints option allows you to configure the following parameters for the PDU shown in Figure 68 Load Voltage THD Neutral Current of nom Ground Current A Load Bus Overcurrent 6 of nom Figure 68 PDU setpoints PDU Set Points Load Voltage THD 3 Neutral Current 95 95 237 5 Gro
141. em from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 135 Event Message Help Text OUTPUT UV Output Undervoltage The voltage being supplied to the load has dropped below the acceptable nominal voltage Check the input voltage from both sources This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard HISTORY LOG FROZEN History Log Frozen Both History Logs have been written and no more history logs can be written without clearing one of the logs Contact technical support in the United States call 1 800 LIEBERT 1 800 543 23
142. em status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured INPUT 2 SURGE FAILURE Input 2 Surge Failure Source 2 input surge suppression module has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 127 Event Message Help Text HEAT SINK OVERTEMP Heat Sink Over Temperature The system heat sink temperature has exceeded the design limits Take immediate steps to cool the unit Remove obstructions from the air inlet in the front of the unit Remove and replace the air filter behind the front door A standard furna
143. ency Input Voltage The Liebert STS2 PDU models are available to handle various voltages The input voltage must be three phase AC 8 wire plus ground The voltage shall be within 10 of the nominal voltage The following table provides nominal voltages listed according to frequency Table 19 Input voltage 60 Hz 50 Hz L L L L 208V 208V 380V 380V 400V 400V 415V 415V 480V 600V Output Voltage The output voltage shall be three phase AC 4 wire plus ground Table 20 Output voltage 60 Hz 50 Hz L L L N L L L N 208 120V 208 120V 380 220V 380 220V 400 230V 400 230V 415 240V 415 240V System Current Ratings These ratings are based upon continuous switch current rating All units are 100 continuous cur rent rated Some ratings are not available in certain voltages Table 21 System current ratings Current 250A 400A 600A 800A Grounding Refer to 4 2 System Grounding for specifications and instructions regarding grounding 114 Specifications 14 1 6 Electrical Requirements Table 22 Electrical requirements Item Requirement Maximum Continuous Current 250 400 600 800 amps Load Power Factor Range 0 75 to 1 0 leading or lagging Load Crest Factor Up to 3 5 Source Voltage Distortion Up to 1096 THD with notches and ringing transients 12596 for 30 minutes 250A 400A 12596 for 10 minutes 600A 80
144. erminal type CA and press RETURN on your keyboard 131 Event Message Help Text 511 Current Peak on Source 1 The peak current from Source 1 has exceeded the setpoint as defined in the 1 Xfer Lockout setting under User Settings Transferring to Source 2 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured If this alarm is configured to automatically reset under the setpoints for User Settings the alarm clears itself when the 1 condition clears If this alarm is set for manual reset mode the alarm continues to show as active after the current returns to nominal still inhibiting transfers You will need to manually reset the alarm If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard The alarm has triggered a message to be sent to the modem if so configured S2 I PEAK Current Peak on Source 2 The peak current from Source 2 has exceeded the setpoint as defined in the I PK Xfer Lockout setting under User Settings Transferrin
145. eters and access event and history logs The firmware is accessible through the LCD touch screen or the RS 232 interface The firmware includes View and set the preferred source View and configure setpoints View alarms faults and status The mimic graphical representation of the systems operation Menu driven monitoring and configuration Step by step instructions to assist you in the startup shutdown and bypass operations Help on event messages Touch screen alarm reset and silence buttons Events in the system both faults and alarms are detected and displayed on the LCD See 11 0 Alarms and Faults for more information on events set of event masks can be configured through the LCD to trigger a system response to an event See 11 1 Event Mask Report event conditions from other components of the system Monitor and report changes in event condition states If the event condition s state changes from inactive to active a new event is detected If the transition is from active to inactive the event condition has cleared Process new faults and alarms and clear inactive alarms Provide the alarm reset and silence options Circuit Breakers and Non Automatic Circuit Breakers Input circuit breaker for each source provides over current protection for the Liebert STS2 PDU Three non automatic circuit breakers provide total isolation of the solid state switching devices with an input non automatic
146. ettings The Input Contact Isolator board ICI provides a Liebert STS2 PDU module interface for up to eight external user alarm or message inputs to be routed through the Liebert STS2 PDU s alarm network See 6 2 Input Contact Isolator Board for more information on the ICI If your Liebert STS2 PDU has the ICI option installed list the settings below for future reference If control power is lost in the Liebert STS2 PDU the settings are not saved Table 31 Input contact isolator settings record Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 146 Ensuring The High Availability Of Mission Critical Data And Applications Emerson Network Power the global leader in enabling business critical Technical Support Service continuity ensures network resiliency and adaptability through _ Web Site a family of technologies including Liebert power and cooling www liebert com Monitoring technologies that protect and support business critical systems Liebert solutions employ an adaptive architecture that responds monitoring emersonnetworkpower com to changes in criticality density and capacity Enterprises benefit Outside the US 614 841 6755 from greater IT system availability operational flexibility and Single Phase UPS reduced capital equipment and operating costs 800 222 5877 upstech emersonnetworkpower com Outside the US 614 841 6755 Three Ph
147. figuring the Liebert STS2 PDU via the Terminal The SPT command is used to configure the systems setpoints The SVT syntax for the setpoints con sists for four parameters SPT group item value where the parameters are SPT is the terminal command that is used to configure setpoints group the group under the setpoint command which contains the desired settings item the item number within the selected group value the desired value for this item Only the specific options words listed in this section use a hexadecimal value Other settings depend ing on what they are use other input types For example System ID uses a text string nominal volt ages and currents use standard numeric integers and modem baud rate uses an enumeration where 0 2400 1 9600 amp 2 19200 bps NOTE Spaces are placed between each parameter but not between characters or numbers in a parameter Using an underline here to represent a space an example of a the syntax is SPT 2 6 0081 The value parameter is 0081 This section provides instructions for setting these parameters with an example of building an SPT command for System and User settings Groups Parameter The setpoints are grouped for ease of configuration For example Event Masks are group 4 and Sys tem Settings are group 2 The numbers shown below are entered for the group parameter For exam ple start of a System Settings command is SPT 2 The group pa
148. formation includes event help text and startup and bypass procedures Figure 61 Liebert STS2 PDU Touch Screen Display Mimic T SOURCE 2 B C A B 208V 208v 208V 208v 208v 208V 60 0 HZ RESET SILENCE Event controls Liebert KEEPING BUSINESS IN BUSINESS Display panel and s help screen EMERSON Network Power Event display CONFIG SOURCE XFERS STARTUP PROC BYP PROC HELP Loco Menu options 95 Touch Screen Display 13 2 Menu Overview The touch screen menu provides access to configuration settings and more device information The CONFIG Configuration and LOGS menus provide multiple choices through pop up menus The SOURCE XFER menu selection allows you to select the preferred source The other menu choices provide information in the display panel The menu choices are discussed later in this manual All programmable functions are preset at the factory to default settings These settings enable the unit to be brought up without the need to enter all selectable parameters The menus allow the set tings to be customized Figure 62 Menus CONFIG LOGS Config menu System Rating L Event Masks User Settings _ System Settings SOURCE XFERS STARTUP PROC Comm Options System Options L System ID BYP PROC HELP LOGO Logs Event Log History Log 1 L Histor
149. g The Liebert STS2 PDU monitoring system detects and annunciates a comprehensive set of fault and alarm conditions Faults and alarm messages are can be viewed on the LCD touch screen or via the RS 232 port On the LCD touch screen the events are shown in the Status Display panel in the lower left corner of the touch screen and written to the Event log You can touch a message to view a definition of an event and a tip for troubleshooting See 13 0 Touch Screen Display for more information about the touch screen If you are monitoring the system through the RS 232 port see Table 12 for the commands to view event logs and alarm and fault lists Event actions can be triggered by the settings configured from the Event Masks See 11 1 Event Mask for more information Faults A fault indicates that a component of the Liebert STS2 PDU has failed or has been dam aged In the Event Display faults are indicated in red Alarms An alarm is an event caused by a significant abnormal system condition In the Event Dis play alarms are indicated in yellow The setpoints for many of the alarms are configurable through the User Settings Many alarms clear themselves when the condition is resolved If an alarm event mask is set to latch the alarm messages remain active until the alarm condition has been corrected and the RESET button is pushed See 11 1 Event Mask for more information on latching When the system is equipped with an external
150. g or prepare the unit for installation NOTICE When moving the unit by forklift lift the unit from the rear so as to protect the front panel Also if moving the unit by forklift or pallet jack after it has been removed from the pallet be aware of the location of the casters and leveling feet if the unit is so equipped so as not to damage them Most Liebert STS2 PDU models are contained in one cabinet The 800 amp units are contained in two cabinets that shipped on two pallets and connected together in the field The unit can be moved by forklift or pallet jack However because the weight distribution in the cabi net is uneven use extreme care during handling and transporting See 1 2 2 Unit Preparation for instructions on removing the Liebert STS2 PDU from the pallet Unpacking and Inspections 1 2 1 1 2 2 1 3 Handling Considerations The Liebert STS2 PDU is bolted to a wood shipping pallet to allow handling by forklift or a pallet jack A WARNING Risk of heavy unit falling over Can cause equipment damage injury or death Exercise extreme care when handling Liebert STS2 PDU cabinets to avoid equipment damage or injury to personnel The cabinet can be safely tilted 15 degrees in any direction by forklift If moving the unit up a ramp on its casters if the unit is so equipped or a pallet jack ensure that the incline does not exceed 15 degrees Locate the center of gravity symbols and determine the unit s w
151. g to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured If this alarm is configured to automatically reset under the setpoints for User Settings the alarm clears itself when the I Peak condition clears If this alarm is set for manual reset mode the alarm continues to show as active after the current returns to nominal still inhibiting transfers You will need to manually reset the alarm If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your key board The alarm has triggered a message to be sent to the modem if so configured SOURCES OUT OF SYNC Sources out of synchronization The phase difference between Source 1 and Source 2 has exceeded the deviation as set for MANUAL MAX XFER PHASE ANGLE under User Settings A manual transfer cannot take place while the sources are not synchronized Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RET
152. gure 17 Outline drawing 800A Liebert STS2 PDU with right side inline distribution 27 Figure 18 Outline drawing 800A Liebert STS2 PDU with left side output breaker or bution AGB Som herbs E Due qe Rent 28 Figure 19 Outline drawing 800A Liebert STS2 PDU with left side inline distribution 29 Figure 20 Outline drawing 250A Liebert STS2 PDU with key lockout switch option 30 Figure 21 Outline drawing 400 600A Liebert STS2 PDU inline distribution right side with key lockout switch option 31 Figure 22 Outline drawing 800A Liebert STS2 PDU inline distribution right side with key lockout Switch option mrs ericeti So de ed BM E Wea ERO EM Be E 32 Figure 28 Electrical field connections 250A Liebert STS2 PDU input output with 8 33 Figure 24 Electrical field connections 250A Liebert STS2 PDU input with 34 Figure 25 Electrical field connections 250A Liebert STS2 PDU input with amp 35 Figure 26 Electrical field connections 400 600A Liebert STS2 PDU input with 36 Figure 27 Electrical field connections 400 600A Liebert STS2 PDU input with CB3 and 37 Figure 28 Electrical field connections 800A Liebert STS2 PDU input with 38 Figure 29 Electrical field
153. gured for AUTO automatic reset then the reset action must be done manually When the voltage is within acceptable parameters touch the RESET button on the touch screen If you are accessing the unit from a terminal type CA and press RETURN on your keyboard This event was written to the Event Log if so configured 52 OV Source 2 Over Voltage The input voltage from Source 2 exceeded a set percentage of the nominal voltage as set in the OV Setting and OV Detection Delay setpoints configured under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 PDU has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 UF OF Source 2 Under Frequency Over Frequency The frequency for Source 2 is running outside the acceptable operating range as set in the Frequency Trip Point under User Settings An S2 Fail alarm was also issued and source transfer has been inhibited Press SILENCE on the
154. h output circuit breakers SUBFEED 1 SUBFEED 2 SOURCE 1 o oy SURGE SUPPRESSION SOURCE 2 SURGE SUPPRESSION 42 POLE DISTRIBUTION PANELBOARD TYP Figure 6 Typical Liebert STS2 PDU one line diagram with I Line distribution dual static switch output circuit breakers SN em je OUTPUT BREAKER S SURGE PT UPPRESSION OPT Ko CB3 CB3A CB2 552 Las o LINE PANELBOARD SOURCE2 SURGE UPPRESSION OPT The input and output power wire size should be based on the overcurrent protection device observing the NEC and local codes The Liebert STS2 PDU output power ground and neutral busbars accommodate a wide range of wire sizes The Liebert STS2 PDU busbars accommodate standard two hole lugs Table 3 Input output conduit plate specifications Ratin Maximum Number 9 of Conduits Size in 12 2 250A 8 2 1 2 6 3 or 3 1 2 6 2 4 2 1 2 3 6 2 1 2 5 3 or 3 1 2 10 Power and Control Wiring 4 2 4 3 4 4 System Grounding Equipment grounding Grounding is primarily for equipment and personnel safety although proper grounding also enhances equipment performance input and output power feeds must include an equipment grounding means as required by the NEC an
155. he History Logs were not already full This event was also written to the Event Log if so configured INPUT 2 UNDERVOLTAGE Input 2 Undervoltage Source 2 is under voltage Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured LOAD OVERCURRENT Load Overcurrent Output is over current Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audib
156. he transfer between sources The Liebert STS2 PDU front panel contains a Color Graphical Display on an LCD touch screen dis play The Color Graphical Display provides a menu driven operator interface and a display of system information status information a one line diagram Mimic of the Liebert STS2 PDU active alarms and alarm history information The menu selections provide control of the preferred source manual transfer initiation Buttons pro vide for audible alarm silence and reset Through the touch screen specific voltage current and environmental parameters can be configured to trigger events that can sound an alarm write to a history log and either transfer sources or inhibit a transfer Preferred input source selection alarm reset and alarm silencing are done through buttons on the touch screen display Communication options provide external communication with the Liebert STS2 PDU through a modem a network card a programmable relay board a contact isolator or an RS 422 port to Liebert s SiteScan Redundancy Redundancy within the Liebert STS2 PDU prevents one component from being a single point of fail ure should a problem occur Redundant circuits and components are used to eliminate single points of failure Since the Liebert STS2 PDU has two input sources no single component failure can cause a loss of power to the load Redundant power supplies are provided which feed a DC dual bus used throughout the unit t
157. his event was written to the Event Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard OUT VOLT SENSE FAIL Output Voltage Sense Module Failed The module contained on the snubber monitoring the output voltage has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 123 Event Message Help Text 51 VOLT SENSE FAIL Source 1 Voltage Sense Module Failed The module contained on the snubber monitoring the input voltage from Source 1 has failed Press SILENCE on the touch screen t
158. hnical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY LOGIC FAIL Power Supply Module Failed The power supply logic module contained in the primary power supply has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm T
159. ical interlocks are provided on the breakers to prevent improper maintenance bypassing of the solid state switch A bypass breaker cannot be closed unless the solid state switch is connected to the same input source and only one bypass breaker can be closed at a time All breakers are equipped with N O and N C auxiliary switches for monitoring of the breaker positions The two solid state static switch input breakers are equipped with 48 VDC shunt trips to allow for control by the Liebert STS2 PDU logic See Tables 8 through 10 Cable Entrance Removable conduit termination plates are provided in the top and bottom of the Liebert STS2 PDU for termination of the two source input conduits or raceways and or the output conduits or raceways On units with inline panelboards output conduit or raceways are bottom exit only Doors A removable key lock hinged front door provides access to the circuit breakers Color Graphical Display The display is located in the front of the unit Front panel display is an LCD touch screen display for monitoring and configuring the unit See Figure 56 for a drawing of the touch screen display 117 Specifications 14 2 9 RS 232 Port The unit is equipped with an RS 232 port for connecting a terminal or PC See Figure 54 for the port s location See 12 1 Using the RS 232 Port for instructions on using a PC terminal with the unit 14 2 10 Terminal Port Connections The system has an asynchronous serial
160. iebert STS2 PDU dis ables source transfers and has to be reset either manually or automatically The type of reset 1s configured under the User Settings 100 Touch Screen Display To configure the setpoints for each source 1 dialog is displayed Figure 67 Source setpoints Select SOURCE 1 2 SETPOINTS from the User Settings dialog box The Source 1 2 Setpoints Select Source Fast UV Settings Slow UV Settings OV Settings 1 Xfer Lockout Amps Save Slow UV Detection Delay cycles OV Detection Delay 1 4 cycles Source 1 2 Set Points Cancel 2 Select 1 to configure the settings for Source 1 3 Configure the settings using the keypad or dialog box that 1s displayed when you touch a button Table 16 Setpoint parameters Button Range Default Comments 10 to 30 of Nominal Pree Fast UV Setting voltage rating 20 Set in increments of 1 Slow UV Setting 5 to 20 10 Set in increments of 1 Slow UV detection delay 1 60 cycles 5 cycles Units Line Cycle OV Setting 5 to 20 10 Set in increments of 1 OV Detection Delay 1 255 cycles 3 cycles Units 1 4 Line Cycle 0 3 0 multiplied by 1 5 Times Unit l peak xfer lockout detection point I PK Xfer Lockout the unit current rating Current Rating Units Amps RMS Select the HI or LO buttons to configure your setting e Select 2 for Sour
161. imits provide reasonable protection against harmful interference in a commercial environment This unit generates uses and radiates radio frequency energy and if not installed and used in accordance with this instruction manual may cause harmful interference to radio communications Operating this unit in a residential area may cause harmful interference that the user must correct at his own expense Unpacking and Inspections 1 0 UNPACKING AND INSPECTIONS NOTE Read the entire manual before beginning to install the Liebert STS2 PDU Upon delivery of the Liebert STS2 PDU the installer should perform the following steps to ensure a high quality installation A high quality installation begins on the receiving dock The Liebert STS2 PDU and its packaging should be inspected when the unit is delivered If the packaging is not damaged unpack the unit and conducting internal inspection before beginning the installation process This section discusses inspecting and unpacking the Liebert STS2 PDU 1 4 External Inspections 1 While the Liebert STS2 PDU is still on the truck inspect the equipment and shipping container s for any signs of damage or mishandling Do not attempt to install the system if damage is apparent 2 Upon receipt and before unpacking inspect the shipping crate for damage or mishandling Check the Shock Watch indicator If the indicator is red note the condition on shipper s receipt and check for concealed dam
162. ion configurations are available The three main types of distributions available for the Liebert STS2 PDU are Output Breaker Inline Panelboards two panelboards 84 poles on 250A units and four panelboards 168 poles on 400 800A units Square D and General Electric panelboards are available to accommodate bolt in or plug in breakers Square D I Line Panelboard designed to accommodate up to 10 plug in breakers from 100A to 250A Additionally 300A to 400A breakers are available on 800A units For other optional distribution methods contact your local Liebert representative or call 1 800 LIEBERT The Liebert STS2 PDU distribution may be mounted on either the right or left side at the customer s option Location of output conduit connections is affected by the location of the output cabinet See Figures 8 9 12 13 16 and 17 for wiring a right side distribution configuration and Figures 10 11 14 15 18 and 19 for wiring a left side distribution configuration See Figures 23 through 44 for wiring See Table 6 for wiring the various output options 5 1 Customer Connections The customer is responsible for connections from the Liebert STS2 PDU distribution to the connected load either directly or through remote distribution cabinets Table 6 Distribution configurations For Details See Electrical Output Distribution Type Field Connections Output Breaker 250A Figure 23 400 600A Figure 33 800A Figure 35 I
163. ion location 400 800A Liebert STS2 PDU 0 008 1 8 WLAd NOILdO NOILdO 1 WAdOW TWNYSLXSONV NVOSALIS SWINOO jeydepy pie JoIsuiaqu HAJN ALON 33 NOILdO 3 TE vIAINVH OO d NOI LdO YOLVIOSI L2VINOO LNdNI ALON 33s NOILdO 3 18VIAIWVHOOHd ALON 33s NOILdO AV T3 3 18VIAIWVHOOHd NOlLdO 194138 3ounos 310W3H lt 38 NYO SQSHVOS AV THH TIEVAAWYDONd JO INDIAIXVIN 2 NMOHS SNOILdO WWOIdAL L SALON CGSAOWSY HOOG 1 4 HLIM LNOHJ 1 081 NOLLYOQO1 NOILdO 445 58 Installation Drawings Figure 49 Control location drawing conduit box top entry 400 600A Liebert STS2 PDU 0 9 0951 454 dOL LINGNOO IOHLNOO HJAOO ACIS 39V 9 Sd18v9 INV TONV LINGNOOD TIVISNI S MAIA QO3TIVISNI JHL NI NMOHS SV Id3H SLINGNOO 804 JO 01 TIYA ACIS ANY AHL AAOWSY ONIddIHS LINN 3H L HO dO L JO ACISNI NMOC 5 SI XOd LINGNOO TOHLINOO JHL E SALON H3AO2 ACIS 39V Id38 S418VY9 ANY LINGNOS TIVLSNI OL 3GIS SAOWSY V WWlad GATIVLSNI LINGNOO HLIM LINN SALON V 140 445 LINGNOO lOHLINOO
164. ions configurations ensure you have selected YES for all the settings that you want activated 2 Select SAVE to keep the settings Whenever you make modifications to the any of the Comm Options select SAVE to keep the changes System Options Most system options are configured at the factory However you may need to set two of the choices after the unit is installed Wye Output Transformer and Remote Source Selection Select SYSTEM OPTIONS from the System Settings Menu The System Options dialog box is displayed An option is enabled by selecting YES An option is disabled by selecting NO Figure 73 System options System Options Dual Output Breaker YES NO PDU YES NO 4 Pole Transfer Switch YES NO Shunt Trip YES NO Wye Output Transformer YES NO Remote Source Select YES NO Save Cancel Dual Output Breaker This selection is set at the factory The choice is set to YES to enable both output breakers CB3 and when two are installed in the unit If only one output breaker CB3 is installed the setting is set to NO 110 Touch Screen Display PDU This selection is set at the factory to YES which allows the LCD to draw the Mimic accordingly and display PDU metering and alarm information Select the PDU button in the System Options window see Figure 73 This opens the PDU Options window shown below in Figure 74 Figure 74 PDU options button PDU Options Surge Supressors
165. is now monitored as the preferred source throughout the various configurations set up through the touch screen 5 Verify that the correct source is designated as the preferred source and that the input source changes to the desired source The Mimic is updated to indicate the new preferred source The source is now highlighted with blue and that source is labeled as the preferred source If the Transfer Inhibit message is displayed check for alarm messages on the Active Status window Correct alarm conditions before attempting a source transfer NOTE The preferred source may also be changed via the optional Remote Source Selection option thereby initiating a transfer remotely 76 Operating Instructions 10 3 10 4 Enabling Remote Source Selection If your system is equipped with the optional Remote Source Selection option it must be enabled From the Color Graphical Display 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Configuration menu 3 Select SYSTEM OPTIONS from the System Settings menu 4 Select YES for the REMOTE SOURCE SELECT choice Maintenance Bypass The Liebert STS2 PDU is equipped with two key interlocked bypass breakers CB4 and to allow manual bypass of the switch electronics for either input source in the event of switch failure or for maintenance of the switch Refer to Figure 3 While operating on maintenance bypass all voltages are removed from the static transfer switch
166. is performed through the touch screen display See Configuring the Programmable Relay Board Settings on page 108 for default settings and instructions for reconfiguring the relays See Figures 47 and 48 for the location of the PRB See Figure 50 for wiring details Table 7 provides the PRB pinout Table 7 Programmable relay board pinout Channel Pin No 1 3 1 2 3 4 6 4 5 TB1 A 7 9 7 8 9 CH2 B 10 12 10 11 12 A 13 15 13 14 15 CH3 B 1 3 1 2 A 4 6 4 5 6 TB2 ais B 7 9 7 8 9 A 10 12 10 11 12 CHS B 13 15 13 14 15 A 1 3 1 2 4 6 4 5 6 TB3 A 7 9 7 8 9 10 12 10 11 12 A 13 15 13 14 15 TB4 CHe B 1 3 1 2 3 Key N O Normally Open N C Normally Closed C Common Note Pin 16 not used on TB1 TB2 and TB3 6 2 Input Contact Isolator Board The Input Contact Isolator Board ICI provides a Liebert STS2 PDU module interface for up to eight external user alarm or message inputs to be routed through the Liebert STS2 PDU s alarm network The eight contacts are normally open dry contacts When a contact closes an event is triggered The Input Contact Isolator options are configured through the Input Contact Isolator dialog box which is accessed from the Comm Option dialog box on the touch screen display You also can pro gram the alarm messages through this dialog box See Configuring the Input Contact Isolator Settings on page 106 for instructions on configuring the connections See Figures 47 and 48 fo
167. k 12 or Liebert SiteLink 4 is required for Liebert SiteScan to communicate with the Liebert STS2 PDU See Figure 52 for wiring details Data link requirements are Full Duplex Asynchronous RS 232 format Communications options are also discussed in 6 0 Options 86 Communication Interfaces 12 1 12 1 1 Using the RS 232 Port The RS 232 port is configured with a baud rate of 9600 with 8 Data Bits 1 Stop Bit No Parity and no hardware handshaking Connecting and Using a Terminal An 282 connection can be used to connect the Liebert STS2 PDU to either a terminal or a PC running terminal emulation software If unsure of the cable pin out see 14 2 10 Terminal Port Connections 1 Connect the terminal to the Liebert STS2 PDU by plugging the cable from the terminal into the RS 232 port This connection can be made at any time 2 After making the connection verify the communications link by pressing lt ENTER gt on the terminal keyboard The interface communications system responds as indicated below Repeating command gt Illegal command lt gt or HELP displays the RS 232 command set command or HELP lt command gt displays specific help for the command SVTP Control gt The SVTP Control gt prompt indicates that RS 232 communications are established If you receive no response or prompt verify that the connector is properly plugged into the port and the PC or terminal serial interface is worki
168. le alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured GROUND OVERCURRENT Ground Overcurrent Ground is over current Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured 137 Event Message Help Text NEUTRAL OVERCURRENT Neutral Overcurremt Neutral is over curremt Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so c
169. led to prevent a current path from one source to the other This technique prevents a faulted source from feeding into the other good source Source Transfer The Liebert STS2 PDU allows manually initiated transfers between the two sources providing the alternate source is within acceptable voltage limits and phase tolerances with the preferred source You begin a manual transfer by selecting the inactive source as the preferred source On a manual transfer the Liebert STS2 PDU transfers between the two sources with less than one 1 millisecond interruption of power to the load The transfer can only be completed when both sources are available and synchronized within the user adjustable phase synchronization window For sources where the two frequencies are not exactly in phase manually initiated transfers are delayed by the Liebert STS2 PDU until the two sources are within the defined phase synchronization window Source selection can also be done remotely using the Remote Source Selection option if installed Automatic Transfer Retransfer If the preferred source is out of voltage and or frequency limits the load is automatically transferred to the alternate source The default transfer voltage limits comply with the limits of the IEEE Std 446 1995 computer voltage tolerance envelope If the unit is so configured the load is retransferred automatically to the preferred source after the preferred source returns to within the acceptable vol
170. m evo 103 Comm options dialog box 104 Modern dialog e oed ts b er xe eor RES RT EO 105 Input Contact Isolator dialog n ce pP Pens 107 Programmable relay board dialog 109 System option Sod coste PO ec Pe TS ERR EXP pA EE 110 PDU options Dutton 21 I dete bb Ara tah Oeo disce a E S babe or ied 111 E tee aa v eU E S eU 112 Hi Story OS x 53 too ts et roce s or asco nud Ed 112 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 18 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 28 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 TABLES Shipping weights typical 4 H at output re ram D PU ee EV A ea 5 Input output conduit plate specifications 10 Remote source selection terminal 11 Terminal block 1 and terminal block 2 wire 12 Distribution configurations gue ode veu we vp x Ween awe os ves dime
171. mitted when the voltage and current are within their proper operating range and the sources are synchronized The Source Transfer screen indicates the synchronization between the two sources while the voltage and frequency are displayed on the Mimic See Figure 59 Transfer is inhibited if the deviation exceeds the parameter set in Source Setpoints See User Settings on page 100 NOTE Q If one source will be de energized for an extended period hours or days set the Liebert STS2 PDU to bypass mode for the remaining source Without using bypass if a failure occurs in the switch components for the remaining source the Liebert STS2 PDU does not have a second source to switch to and the load would not receive power See 14 2 12 Maintenance Bypass for bypass instructions Figure 59 Source Transfer screen SOURCE 2 A B B C C A B C C A 208V 208V 208V 208V 208V 208V 60 0 HZ SILENCE SELECT PREFERRED SOURCE 30 0 30 prr Source 1 leads Source 2 by 3 5 deg SOURCE 1 SOURCE 2 SOURCE XFERS STARTUP PROC BYP PROC HELP LOGO CONFIG LOGS To manually select the preferred source 1 Close the input breakers CB6 CB7 CB1 and CB2 2 Select SOURCE XFERS from the menu bar The Select Preferred Source screen is displayed in the Event Display 3 Check the Mimic to verify that Source 1 and Source 2 input voltages are correct 4 Select SOURCE 1 or SOURCE 2 as your preferred source This source
172. nfigured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 133 Event Message Help Text CB2 S2 OPEN Circuit Breaker 2 for Source 2 Open Circuit Breaker 2 is not closed CB1 is only assigned to Source 2 Check that the Circuit Breaker 2 switch is in the desired position Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB4 51 BYP CLOSED Circuit Breaker 4 Source 1 Bypass Breaker Closed Circuit breaker 4 is not open The input from Source 1 is bypassing the Liebert STS2 PDU Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert S
173. ng properly 3 Enter the desired commands as listed in Table 12 For additional help type command or HELP command Refer to the corresponding menu options in 13 0 Touch Screen Display for more details about the commands Some terminal commands require a password to function Use the PWD command and a valid pass word to gain access Table 12 Terminal commands Keys Function Displays this help menu or specific help with a command AA Displays active alarms AF Displays active faults CEL Clears the event log CHL Clears the history logs DATE Displays current system date DATE Sets system date EL Displays the entire event log HELP Displays this help menu or specific help with a command HLn Displays the history log n if frozen LOGOUT Logs user out of unprotected mode PS Displays the preferred source PSn Sets the preferred source to n PWD Allows users to access protected commands QUIT Modem only Ends the session and hangs up the modem SH Silences the horn SPT Displays all current setpoints SPTx Displays current setpoints for group x See 12 1 2 Configuring the Liebert STS2 PDU via the Terminal for a description of groups SR Displays status reports TIME Displays current system time TIME Sets system time UPMDR Displays metering data VER Displays firmware versions 87 Communication Interfaces 12 1 2 Con
174. nline Panelboards 250A Figure 30 400 800A Figure 31 I Line Square D Figure 32 13 Options 6 0 OPTIONS This section discusses the options available for the Liebert STS2 PDU The communications options are also discussed in 12 0 Communication Interfaces WARNING A Risk of electric shock Can cause injury or death All options must be installed by Liebert Services or Liebert factory authorized service provided by a Liebert distributor The option area and customer control cable area contain hazardous voltages if any of the input sources are on even when the unit is in bypass Turn OFF all power sources before installing customer control cables to any option 6 1 Programmable Relay Board The programmable relay board PRB provides a means to trigger an external device when an event occurs in the Liebert STS2 PDU Each PRB has 8 channels Each channel has two sets of Form C dry contacts rated 1A 30VDC or 250mA 125VAC Any alarm or event may be programmed to any channel or channels Up to ten 10 events may be programmed to a relay If multiple events are grouped to one relay group the events logically to sim plify troubleshooting when an event is triggered The same alarm or event may be programmed to more than one channel Up to two programmable relay boards can be installed in the Liebert STS2 PDU for a total of 16 channels Programming
175. o prevent any single point power supply failure modes Three separate redundant control logic modules are built into the system Each contains the logic nec essary to run the Liebert STS2 PDU and control all transfers Redundant fans are provided if a primary fan fails The redundant fans turn on to prevent overheat ing inside of the unit Should the front panel interface fail the control logic continues to operate and the unit would transfer should a problem be detected on the preferred source Information on the monitoring parameters would be available through the remote communication options if available or the DB9 RS 232 con nector located next to the LCD behind the front door See Figure 54 for details 68 Introduction to Liebert STS2 PDU Operation 8 1 2 8 2 8 2 1 Reliability and Agency Requirements The Liebert STS2 PDU is designed for high reliability and high availability with a critical bus Mean Time Between Failure MTBF exceeding 1 000 000 hours The Liebert STS2 PDU and all its options are designed tested and certified where applicable to meet agency requirements as follows UL 891 Standard for Switchboard for UL and ULc listing UL 1008 Standard for Automatic Transfer Switches UL 67 Standard for Panelboard UL 1561 Standard for Dry Transformers UL 1459 Telephone equipment Modem NEC FCC Part 15 EMI emission limits for Class computing devices The Liebert STS2 PDU uses c
176. o turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 VOLT SENSE FAIL Source 2 Voltage Sense Module Failed The module contained on the snubber monitoring the input voltage from Source 2 has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Thi
177. odule failed D A 14 S2 VOLT SENSE FAIL The Source 2 volt sense module failed D A 15 S1 SCR SENSE FAIL The Source 1 SCR sense module failed D A 16 S2 SCR SENSE FAIL The Source 2 SCR sense module failed D A 17 S1 CURR SENSE FAIL The Source 1 SCR current module failed D A 18 S2 CURR SENSE FAIL The Source 2 SCR current module failed D A 19 S1 GATE DRIVE FAIL The Source 1 gate drive module failed D A 20 S2 GATE DRIVE FAIL The Source 2 gate drive module failed D A 21 INTERNAL COMM FAIL Internal CAN communications failed D A 23 CB1 SHUNT TRIP FAIL CB1 shunt trip failed D A 24 CB2 SHUNT TRIP FAIL CB2 shunt trip failed D AE 27 EQUIPMENT FAN FAIL One of the equipment fans failed D A E 28 INPUT 1 SURGE FAIL Source 1 input surge suppression module failed D A E 29 INPUT 2 SURGE FAIL Source 2 input surge suppression module failed D AE 64 HEATSINK OVERTEMP Heatsink has exceeded the recommended temperature A E 65 EQUIPMENT OVERTEMP Cabinet has exceeded the recommended temperature A E 67 51 Source 1 under voltage fast detection 68 51 UV RMS Source 1 under voltage slow detection 69 51 OV Source 1 over voltage 70 51 OF UF Source 1 over frequency under frequency A E 71 51 FAIL Source 1 failure 72 52 UV Source 2 under voltage fast detection 73 2 UV RMS Source 2 under voltage slow detection A E 74 52 OV Source 2 over voltage 75 52 OF UF Source 2 over f
178. oncrete floor to ensure stability for the unit in the event of seismic activity Leveling of the 250A Only Liebert STS2 PDU Without Anchoring The 250A Liebert STS2 PDU is furnished with casters and leveling feet After final positioning of the unit adjust the leveling feet located in each corner of the frame base to level and stabilize the unit For leveling feet details see Figures 7 through 11 Power Control Wiring 4 0 POWER AND CONTROL WIRING A Risk of electric shock Can cause injury or death This unit is supplied by more than one power source The unit contains hazardous voltages if any of the input sources are on even when the unit is in bypass To isolate the unit turn off and lock out all input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Lethal voltages exist inside the unit during normal operation Only qualified service personnel should perform maintenance on the Liebert STS2 PDU All power and control wiring must be installed by a licensed properly trained and qualified electrician All power and control wiring must comply with the National Electrical Code and all applicable local codes The input power busbars are accessible through the front of the unit Liebert s 250A units have PEM nut inserts designed to allow one handed tightening Busbars in the 400 800A units are supplied with holes to accommodate two hole lugs Cables c
179. onfigured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured LOAD VOLTAGE THD Load Voltage Total Harmonic Distortion Voltage THD has exceeded the set limit Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured INPUT 1 CB6 OPEN Input 1 CB6 Open Source 1 input Circuit Breaker 6 is open Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN
180. onservatively rated components minimizing the need to go to mainte nance bypass All normal maintenance and repair work can be done through the front panel of the unit This access makes repairs and maintenance easier Gating and control logic are partitioned so that failure of one source s gating or sensing logic does not prevent the switch from transferring to the other source All control and logic components are mounted separate from the power components The Liebert STS2 PDU is designed to minimize the exposure of hazardous voltages to allow safe servicing of the unit while the load is energized All electrical components requiring normal maintenance are replaceable without de energizing the load as long as one source is available Solid state switching devices are packaged to allow safe repair of those devices without having to de energize the load All non automatic switches or circuit breakers are the plug in or draw out type to allow replacement without de energizing the load All other com ponents including transformers power cables and connections circuit breaker bases etc are replaceable from the front rear or top of the unit however this requires all power to be removed from the unit for safety All solid state power switching devices are rated to prevent hazardous device failure in power systems with available fault currents up to the defined limits as listed in 14 1 6 Electrical Requirements Factory Backup and Service
181. ontrol board and the touch screen control Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB1 SHUNT TRIP FAIL Circuit Breaker 1 Shunt Trip Failure Circuit Breaker 1 failed to trip open when the control issued a command for the circuit breaker to trip Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Li
182. our keyboard INPUT CONTACT 4 Input Contact Isolator 4 Occurrence of the indicated external event has been detected by Input Contact Isolator 4 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 5 Input Contact Isolator 5 Occurrence of the indicated external event has been detected by Input Contact Isolator 5 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 6 Inpu
183. own in Static Transfer Switch Mode When the Liebert STS2 PDU is operating on static transfer switch mode not maintenance bypass mode 1 Turn off the load equipment per manufacturer s recommendations 2 Open CB8 or panelboard breakers and mains if supplied 3 Open to turn off the static switch output Open if the Liebert STS2 PDU has a redundant output configuration 4 Open the input switches CB1 and CB2 5 completely de energize the unit open CB6 and Shutdown in Maintenance Bypass Mode When the Liebert STS2 PDU is operating on bypass 1 2 3 4 Turn off the load equipment per manufacturer s recommendations Open or panelboard breakers and main if supplied Open the bypass switch CB4 or to turn off the static transfer switch output To completely de energize the unit turn open CB6 and CB7 80 Alarms and Faults 11 0 ALARMS AND FAULTS 11 1 Alarms and faults are events that are triggered when the operation of the Liebert STS2 PDU falls outside of the defined parameters These events can also be triggered by user actions such as chang ing configurations clearing logs etc failed components such as a fan failure an SCR that is open or shorted etc and system status such as open circuit breakers load on alternate source etc These events can provide a warning or trigger the system to make a change such as switch sources or the recording of a history lo
184. pad dialog or HI LO dialog box The source numbers do not designate the source as the preferred or alternate source The numbers simply identify the input source See 10 2 Manual Transfer Preferred Source Selection to set the preferred source The Setpoints are based on values in relation to the nominal voltage required for the Liebert STS2 PDU UV refers to under voltage meaning the amount of voltage below the nominal voltage OV refers to over voltage or the amount of voltage over the nominal voltage Fast UV Setting if the voltage drops below this set percentage of the nominal voltage the Liebert STS2 PDU transfers from the current source to the opposite source Slow UV Setting 96 if the voltage remains this set percentage below the nominal voltage for the period of the slow detection delay the Liebert STS2 PDU transfers from the current source to the opposite source Slow UV detection delay the number of cycles that the source must remain below the Slow UV Setting before the Liebert STS2 PDU transfers OV Setting 96 if the voltage exceeds this set percentage of the nominal voltage for the period of the OV detection delay the Liebert STS2 PDU transfers from the current source to the opposite source OV Detection Delay the number of cycles that the source must remain above the OV Setting before the Liebert STS2 PDU transfers sources I PK Xfer Lockout if current from the source exceeds this threshold the L
185. pe SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 PHASE ROT ERROR Source 2 Phase Rotation Error A phase rotation error condition exists on Source 2 Check the phase sequence ABC of Source 2 Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard TRANSFER INHIBITED Transfer Inhibited Uninterrupted transfer between sources is inhibited due to input source failure sources out of sync switch fail ure or the unit is in bypass mode Check the Event Log for the event or events that may have caused the alarm Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU syst
186. phases Note The overload setpoint is a single fixed number 101 An overload condition is detected when the mea sured load current is equal to or greater than the setpoint Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 2 OVERCURRENT Source 1 Overcurrent Liebert STS2 PDU is running on Source 2 and an overload condition has occurred on one or more phases Note The overload setpoint is a single fixed number 101 An overload condition is detected when the mea sured load current is equal to or greater than the setpoint Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a t
187. r keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 134 Event Message Help Text CB3A OUTPUT OPEN Circuit Breaker 3A Output breaker is Open Optional Circuit breaker 3A is not closed This circuit breaker is assigned to the output load The power flow to the load cannot flow through the Liebert STS2 PDU Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 PHASE ROT ERROR Source 1 Phase Rotation Error A phase rotation error condition exists on Source 1 Check the phase sequence ABC of Source 1 Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal ty
188. r the location of the ICI See Figure 51 for wiring details 14 Options 6 3 6 4 6 5 6 6 Comms Board The Comms Board provides a communication interface to Liebert SiteScan site monitoring product and or an external modem Liebert SiteLink 12 or Liebert SiteLink 4 is required for Liebert SiteScan to communicate with the Liebert STS2 PDU The Comms Board is equipped with an RS 422 communication port for communication to a Liebert SiteScan monitoring system using a 2 wire twisted pair for reliable communication up to 1000 meters 8281 feet Information available from the RS 422 port includes the present switch status informa tion all monitoring parameters and all active alarms The Comms Board is equipped with a modem interface for remote reporting of the present switch sta tus information alarm history information and the history of status screens that are triggered upon a major alarm event The monitoring system software also supports an auto dial feature that allows the system to automatically dial programmed phone numbers by way of a modem to report designated alarm conditions Programming the Comms Board is performed through the touch screen display See Comm Options on page 104 for details See Figures 47 and 48 for the location of the Comms Board See Figure 52 for information on the control wiring Liebert IntelliSlot Web 485 Card With Adapter A Liebert IntelliSlot Web 485 Card With Adapter IS WEB48
189. rameters are 1 System Ratings 2 System Settings 3 User Settings 4 Event Mask Settings For example the start of a System Settings command is SPT 2 where SPT is the system setpoints command and 2 is the group parameter for System Settings See 12 1 4 Setting Event Masks with the Terminal for instructions on configuring Event Mask parameters Item Parameter Each setting within the group is indexed by an item number as shown below in Table 14 These item numbers are also displayed on the terminal when you list the configuration setting for a particular group Continuing with the example to configure an Options_1 setting under System Settings the command would begin with SPT 2 6 where 6 is the value Options_1 Note the space between each parameter 88 Communication Interfaces Value Parameter Item settings depending on what they are use various value types Table 13 provides a list of the possible value types and their description Table 13 Value types Type Definition An integer numeric value in the units indicated by the item name For example System Voltage Rating of 480 would indicate 480 volts Similar to the Numeric this value type is an integer that has been scaled usually to remove decimal Scaled points that would normally appear within the value In this case a value of 2 5 may actually be input as simply 25 For all Scaled types the scaling appears in Table 14 Strin Ce
190. rce or allow the transfer to be done only manually Transfer Inhibit For a transfer to be completed between input sources the sources must meet certain parameters or the transfer cannot take place Uninterrupted transfer between sources is inhibited due to input source failure sources out of sync switch failure or the unit is in bypass mode Bypass The Liebert STS2 PDU can be manually bypassed to allow the power from a source to directly flow to the output load This bypass allows the unit s electronics to be serviced without dangerous voltages being present The Liebert STS2 PDU includes key interlocked maintenance bypass breakers that allow either input source s electronics to be bypassed for maintenance without interruption of power to the load The maintenance bypass allows all electronics to be isolated from the input output and bypass connec tions Bypass instructions are available from the touch screen and are discussed later in this manual Operator Controls The Liebert STS2 PDU is equipped with an interface to configure and monitor the unit either locally or remotely The Color Graphical Display is a touch screen LCD that provides a color diagram Mimic that displays the current status of the unit System parameters are displayed and help is available to define events See Figure 57 below and Figure 56 in 7 0 Installation Drawings The touch screen menus allow the operator to initiate source transfers view event and histo
191. re attaching to the top of the Liebert STS2 PDU See Figures 47 and 48 for arrangement of optional cards Remote Source Selection Wiring An optional Remote Source Selection board may be installed in your Liebert STS2 PDU This board is installed in the same bay as the communications options See Figures 47 and 48 for the location of these options See Figure 55 for information on the control wiring for the Remote Source Selection option The Remote Source Selection allows you choose the preferred input source from a remote location Terminal connections allow the customer to remotely select a source to be the preferred source in the same process as the local source transfer selection If both the input contacts are closed the current selected preferred source shall be retained If the unit s preferred source selection and Remote Source Selection are active at the same time the Liebert STS2 PDU follows the last request for a preferred source change regardless of whether it was from the local or Remote Source Selection controls A six pin terminal block provides the Remote Source Selection connections Two pairs of wires are used from the switch to trigger the source selection You can select the type of switch used for this remote control Connections are made to four of the connections using Form A dry contacts The con tacts are numbered left to right Table 4 Remote source selection terminal block Contact Connection 1 Source
192. rea For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY DC B FAIL Power Supply DC Bus B Failed The secondary power supply is no longer providing DC power to the control board and CAN options Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured
193. requency under frequency A E 76 52 FAIL Source 2 failure 77 S1 OVERCURRENT Source 1 over current 78 S2 OVERCURRENT Source 2 over current 79 51 I PK on Source 1 D F A 80 52 I PK on Source 2 D F A 84 Alarms and Faults Table 11 Event messages continued ID Alarm Message Description Cause Action 81 SOURCES OUT OF SYNC Source 1 and Source 2 are out of synchronization 82 LOAD ON ALT SOURCE The output load is running on the alternate source A E 83 AUTO REXFER INHIBIT Automatic retransfer is inhibited 84 CB1 51 OPEN Source 1 Circuit Breaker 1 is open A E 85 CB2 52 OPEN Source 2 Circuit Breaker 2 is open A E 86 CB4 51 BYP CLOSED Source 1 on bypass Circuit Breaker 4 is closed 87 CB5 52 BYP CLOSED Source 2 on bypass Circuit Breaker 5 is closed A E 88 CB3 OUTPUT OPEN Output circuit breaker CB3 is open A E 89 CB3A OUTPUT OPEN Output circuit breaker CB3A is open A E 90 51 PHASE ROT ERROR Source 1 phase rotation error 91 S2 PHASE ROT ERROR Source 2 phase rotation error 92 TRANSFER INHIBITED Transfer inhibited A E 93 OUTPUT UV Output is under voltage D F A E 94 HISTORY LOG FULL o ERE 96 INPUT 1 OV INPUT Source 1 over voltage 97 INPUT 1 UV INPUT Source 1 under voltage
194. rlock to retract the interlock Close bypass breaker CB5 Verify the breaker status on the Mimic screen Open source input breaker CB2 10 Rotate the interlock key and remove it to lockout the breaker 11 Secure the key per your site s lockout tagout procedure 12 Open output breakers CB3 and if supplied to remove power from static switch Qo z1 OQ Q return to normal mode Insert the key in the CB2 breaker interlock Rotate the key to retract the interlock Close source input breaker CB2 Verify Source 2 and CB2 breaker status on the Mimic screen Close output breakers CB3 and CB3A if supplied Verify CB3 and breaker status and STS SOURCE 2 and OUTPUT boxes are highlighted on the Mimic screen 7 Open bypass breaker CB5 8 Rotate the keys in CB5 interlock to extend the interlock 9 Remove the proper key from 5 interlock and insert it into breaker interlock 10 Rotate the key to retract the CB1 breaker interlock 11 Close source input breaker 12 Verify the STS SOURCE 1 box and CB1 breaker status on the Mimic screen Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 60 QUI o 79 Operating Instructions 10 5 Normal System Shutdown The Liebert STS2 PDU can be shut down from either the static switch mode or the bypass mode 10 5 1 10 5 2 Shutd
195. rtain settings are represented by alphanumeric character strings such as setting the System 9 Model Number to ProductName Enumeratio This type uses an indexed list to represent possible choices One example is the Modem Baud Rate n which uses a value of 0 to select 2400 bps 7 for 9600 bps and 2 for 19200 bps This type of value uses a hexadecimal binary word where each of the sixteen bits in the word has Bit packed the value of 1 True or 0 False Although somewhat difficult to use it packs a large amount of data p within a single entry A detailed description of this type appears in section 12 1 3 Setting Bitpacked Options With the Terminal Event This type is a specially formatted and is used to customize the behavior of each fault and alarm in Masks the system See 12 1 4 Setting Event Masks with the Terminal for instructions on configuring Event Mask parameters 89 Communication Interfaces Table 14 shows the various groups the settings contained within and the type of value it requires Table 14 Group settings and values Group Item Description Value Type Value Notes 1 Input Volts PDU Integer Set per system spec Group 1 2 Volts Integer Set per system spec System Ratings 3 Current Integer Set per system spec 4 Frequency Scaled Desired freq x 10 600 60 Hz 1 Language Enumeration Not
196. ry logs and view bypass and other operational instructions Figure 57 Liebert STS2 PDU touch screen display Event controls Event display Mimic SOURCE 2 A B B C C A 208v 208V 208V OA 0A OA 60 0HZ RESET SILENCE Liebert KEEPING BUSINESS IN BUSINESS Display panel and help screen EMERSON Network Power CONFIG SOURCE XFERS STARTUP PROC BYP PROC HELP Loco Menu options Touch screen control buttons allow you to reset alarms silence the audible alarm review configura tions event and history logs preferred source startup and bypass procedures and the help menu Qualified personnel with a password can use these menus to configure parameters select a pre ferred source and do manual source transfers Units can be accessed from a terminal or a PC running terminal emulation software attached to the unit Through the RS 232 access you can monitor and configure the unit plus remotely select a pre ferred source See 12 1 Using the RS 232 Port for instructions on using the RS 232 interface 70 Theory of Operation 9 0 THEORY OF OPERATION 9 1 9 1 1 General Description The Liebert STS2 PDU contains all the equipment necessary to prevent an interruption in power flow to the AC load should your primary source fail Liebert Static Transfer Switch 2 Power Distribution Unit The Liebert STS2 PDU is a combination automatic static transfer switch and po
197. s and faults that are generated See 11 0 Alarms and Faults for more information on events and 11 1 Event Mask for the definitions of the Event Mask types To set the event masks 1 Access the Event Mask dialog box a Select CONFIG b Select EVENT MASK from the pop up menu The Event Mask dialog box is displayed See Figure 65 2 Select the mask settings for each fault and alarm a Select YES to enable the setting OR b Select NO to disable the setting 3 Select SAVE to keep the settings Figure 65 Event Mask dialog box 99 Touch Screen Display User Settings The User Settings choice allows you to adjust the user accessible switch settings Access is limited to qualified personnel via system security To access the User Settings dialog box 1 2 Figure 66 User settings dialog box Select CONFIG Select USER SETTINGS from the pop up menu The User Settings dialog box is displayed See Figure 66 The top six buttons access a series of secondary dialog boxes to configure the various settings User Settings Source 1 2 Set Points PDU Set Points Manual Xfer Max Phase Angle Deg Frequency Trip Point Hz Retransfer Delay Sec Audio Level Display Brightness Auto Rexfer Enable Auto Restart Enable I Peak Reset Save Source Setpoints The Source 1 2 Setpoints allows you to configure trigger points for each input source 1 or 2 for the Liebert STS2 PDU via a key
198. s event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 PDU system from a terminal type CA and press RETURN on your keyboard 51 SCR SENSE FAIL Source 1 SCR Sense Module Failed The module contained on the snubber monitoring the SCRs for Source 1 has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 PDU system from a terminal type CA and press RETURN on your keyboard 124 Event Message Help Text 52 SCR SENSE FAIL Source 2 SCR Sense Module Failed The module contained on the snubber monitoring the SCRs for Source 2 has failed Press SILEN
199. s supplied by more than one power source The unit contains hazardous voltages if any of the input sources are on even when the unit is in bypass To isolate the unit turn off and lock out all input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Lethal voltages exist inside the unit during normal operation Only qualified service personnel should perform maintenance on the Liebert STS2 PDU Installation and operation must comply with all national and local laws and regulations A WARNING Risk of electric shock Can cause injury or death Under typical operation and with all Liebert STS2 PDU doors closed only normal safety precautions are necessary The area around the Liebert STS2 PDU should be kept free of puddles of water excessive moisture flammable liquids gases corrosive substances and debris Only properly trained personnel wearing appropriate safety headgear gloves shoes and glasses should perform maintenance on the Liebert STS2 PDU When performing maintenance on any part of the equipment under power service personnel and test equipment should be located on rubber mats Service personnel should wear insulating shoes for isolation from direct contact with the floor One person should never work alone even if all power is disconnected from the equipment A second person should be standing by to assist and summon help in case of an accident NOTICE
200. s written to the Event Log if so configured 141 Event Message Help Text HIST LOGS CLEARED History Logs Cleared Both History Logs have been erased and the logs are now available to record future events The event was written to the Event Log if so configured TRANSFER COUNTER CLEARED Transfer Counter Cleared Transfer counter reset to 0 Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was also written to the Event Log if so configured KW HRS COUNTER CLEARED KW HRS counter cleared KW Hrs counter reset to 0 Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support This event was also written to the Event Log if so configured 142 Maintenance 16 0 MAINTENANCE 16 1 16 2 16 3 A WARNING Risk of electric shock Can cause injury or death Only properly trained and qualified service personnel should perform maintenance on the Liebert STS2 PDU Lethal voltages exist inside the unit during normal
201. supported at this time 2 System Model Number String 14 Character max 3 System ID Number String 8 Character max 4 System Tag Number String 8 Character max 5 System Order Number String 8 Character max 6 Options_1 Bitpacked 14 Character max 7 Autodial Primary Line String 20 Character max Group 2 8 Autodial Secondary Line String 20 Character max 9 Autodial Pager Number String 20 Character max 10 Autodial Pager PIN String 10 Character max 11 Modem Init String String 20 Character max 12 Modem Baud Rate Enumeration 0 2400 1 9600 amp 2 19200 bps 13 Modem LGS Check Day Bitpacked 14 Modem LGS Check Time Bitpacked 15 Comms Options 1 Bitpacked See section 12 1 3 16 Comms Options 2 Bitpacked See section 12 1 3 1 SRC1 Fast Undervoltage Setpoint Integer In of nominal below nominal 2 SRC1 Slow Undervoltage Setpoint Integer In of nominal below nominal 3 SRC1 Slow Undervoltage Detect Delay Integer In number of lines cycles 4 SRC1 Overvoltage Setpoint Integer In of nominal above nominal 5 SRC1 Overvoltage Detect Delay Integer In 1 4 lines cycles 6 SRC1 peak Transfer Setpoint Integer x 10 7 SRC2 Fast Undervoltage Setpoint Integer In of nominal below nominal 8 SRC2 Slow Undervoltage Setpoint Integer In of nominal below nominal Group 3 9 SRC2 Slow Undervoltage Detect Delay Integer In number of lines cycles Settings 10 SRC2 Overvoltage Setpoint Integer In of nominal above nominal 11 SRC2 Overvoltage Detect Delay Integer
202. t Contact Isolator 6 Occurrence of the indicated external event has been detected by Input Contact Isolator 6 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 140 Event Message Help Text INPUT CONTACT 7 Input Contact Isolator 7 Occurrence of the indicated external event has been detected by Input Contact Isolator 7 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTAC
203. t fans has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal tyoe SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured INPUT 1 SURGE FAILURE Input 1 Surge Failure Source 1 input surge suppression module has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the syst
204. t switch is located on the front of the unit next to the display it behind the front door but can be operated without opening the front door See Figures 20 through 22 for location of the key lockout switch To disable the changes turn the key to the top of the switch toward the closed padlock To enable changes turn the key to the horizontal position toward the open padlock Figure 64 Key lockout switch 2 disabled 1 Changes enabled If the unit is not equipped with a keylock a password is required when you attempt to Using the Password Save changes in the CONFIG menu choices Transfer sources Reset active alarms Clear logs When a password is requested a keyboard is displayed on the touch screen After you enter the pass word select OK The password is case sensitive Password access times out after ten 10 minutes and must be re entered to save changes The time out period cannot be changed To set or reset the password 1 Select SYSTEM SETTINGS from the CONFIG menu Select SYSTEM ID form the SYSTEM SETTINGS menu Click PASSWORD A keyboard is displayed Enter a password The password must be four 4 alpha numeric characters and is case sensitive Click OK QUE 09 19 97 Touch Screen Display 13 3 13 4 13 5 13 6 13 7 Mimic Display The Mimic display provides a color diagram of the operation of the Liebert ST
205. tage and frequency limits for at least the defined retransfer time delay and is in phase with the alternate source You can enable and disable automatic retransfer to the preferred source through a user configuration setting Automatic Retransfer Inhibited If the system makes five transfers from the preferred source to the alternate source in a five minute period automatic retransfers back to the preferred source is disabled To clear this alarm condition you must assign the alternate source as the preferred source Also the UV detection thresholds may need adjustment See Source Setpoints on page 100 for instructions on setting the UV detection This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure 1 6 an emergency transfer 71 Theory of Operation 9 1 5 9 1 7 9 2 9 2 1 Emergency Transfer To ensure that power remains connected to the load the Liebert STS2 PDU automatically performs an emergency transfer from one input source to the other when an outage occurs on the existing source The automatic transfer takes place if the other source s voltage is within acceptable limits and regard less of the phase difference between the two sources Emergency transfers occur with a loss of power on the output of less than 4 ms Emergency transfers from the alternate source to the preferred source are not affected by the Auto Retransfer Enabled Disabled or Re
206. tected by a 225A 240V 3 pole panelboard main circuit breaker Each panelboard includes a separate isolated neutral bus bar and a safety ground bus bar for the neu tral and safety ground connections for at least 42 output circuits I Line Panelboards An output distribution cabinet with one vertically mounted Square D I Line panelboard with copper bus to accept Square D three phase plug in circuit breakers The panelboard shall be totally enclosed with an accent cover Subfeed Breakers Breakers for feeding remote panelboard s or other loads Available in ratings of 225A or 400A NOTE Only available on units with inline panelboards 400A breaker not available on 250A units K Factor Transformers K20 rated double shielded copper isolation transformer specially designed to accommodate highly nonlinear leads in accordance with UL 1561 in place of standard isolation transformer Surge Suppression System A fused and monitored high energy 80 kAmp phase surge suppression system by Control Concepts connected to each input of the unit for superior surge suppression 16 wings Installation Dra INSTALLATION DRAWINGS 7 0 Figure 7 Outline drawing 250A Liebert STS2 PDU 20 0021ldSd SAONIH 3540 1541 SHOOG TIY ONIMS SHOOG LNO3J 0ZL dO L 5 SMH3 V3H8 LAdNI OL n TANVd SS329V GAONIH TANVd ACIS LNOHLIM NMOHS LINN 40 LNO 3 V 140 0 SALON 33S
207. tions 800A Liebert STS2 PDU interconnect wiring STS section 49 Electrical field connections 800A Liebert STS2 PDU interconnect wiring left side distribution Cabinet i edle bg ane be E em y Ever 50 Electrical field connections 800A Liebert STS2 PDU interconnect wiring left side one line 51 Electrical field connections 800A Liebert STS2 PDU interconnect wiring left side one line with doh Wale wee ee 52 Electrical field connections 800A Liebert STS2 PDU interconnect wiring right side rah hrs weet teed e ee aes ea uM cae aed 53 Electrical field connections 800A Liebert STS2 PDU interconnect wiring right side one lin with CBSA a E sag Roe Rech PPAR ae Abo 54 Control wiring 800A Liebert STS2 PDU left side 55 Control wiring 800A Liebert STS2 PDU right side distribution 56 Control connection location 250A Liebert STS2 PDU 57 Control connection location 400 800A Liebert STS2 PDU 58 Control location drawing conduit box top entry 400 600A Liebert STS2 PDU 59 Control wiring for the programmable relay board 60 Control wiring for the input contact isolator board
208. tions can be checked via infrared scanning safely from the front or top of the unit All other components including transformers power cables and connections circuit breaker bases etc are replaceable from the front rear or top of the unit but this requires all power to be removed from the unit for safety Although routine re torquing of the power connections is not required if maintenance of these connections is needed complete removal of power is required from the unit for safety reasons A WARNING Risk of electric shock Can cause injury or death Lethal voltages exist inside the unit during normal operation Only properly trained and qualified service personnel should perform maintenance on the Liebert STS2 PDU The unit is supplied by more than one power source The unit contains hazardous voltages if any of the input sources is on even when the unit is in bypass To isolate the unit turn off and lock out all input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Circuit Breakers The Liebert STS2 PDU is equipped with two input plug in circuit breakers and five or six if CB3A is used molded case plug in non automatic circuit breakers The breakers are UL listed for use up to 600VAC and CE marked The plug in feature of the breaker includes an interlock which prevents the breaker from being unplugged without being in the OFF open position Mechan
209. touch the RESET button on the touch screen If you are accessing the unit from a terminal type CA and press RETURN on your keyboard This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 128 Event Message Help Text 51 OV Source 1 Over Voltage The input voltage from Source 1 exceeded a set percentage of the nominal voltage as set in the OV Setting and OV Detection Delay setpoints configured under the User Settings An S1 Fail alarm was also issued and source transferhas been inhibited The load of the Liebert STS2 PDU has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 OF UF Source 1 Over Frequency Under Frequency The frequency for Source 1 is running outside the acceptable operating range as set in the Frequency Trip Point under User Settings An S1 Fail alarm was also issued and source transfer has been inhibited Press SILENCE on the touch screen
210. transfer Delay user settings Load Current Transfer Inhibit The Liebert STS2 PDU senses the load current If the load current exceeds the preset level deemed to represent a load inrush or fault condition the unit s logic disables manual and automatic transfers even if the selected source s input voltage is outside the acceptable limits This event triggers an I Peak alarm If so configured the Load Current Transfer Inhibit is automatically reset after the cur rent and voltage return to within normal parameters This reset provides continued protection against a source failure The Load Current Transfer Inhibit also can be programmed to require a manual reset See Step 14 in Source Setpoints on page 100 for details SCR Failure The Liebert STS2 PDU continuously monitors the status of the SCR switching devices for proper operation In the event of a shorted SCR on the input source powering the load the Liebert STS2 PDU automatically triggers an alarm and trips open the other source isolation breaker In the event of a shorted SCR on the other input source the Liebert STS2 PDU automatically triggers an alarm and trips open the other source isolation breaker In the event of an open SCR the switch automatically triggers an alarm and transfers the load to the other source All open and shorted SCR alarm conditions are latched and require the system to be repaired and reset to restore normal operation On Off Sequence The Liebert STS2 P
211. turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured CONTROL MODULE FAIL Control logic module has failed One of the control modules on the control board has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 121 Event Message Help Text PWR SPLY DC A FAIL Power Supply DC Bus A Failed The primary power supply is no longer providing DC power to the control board and the touch screen Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your a
212. und Current A 5 04 Load Overcurrent 101 252 5 Save Cancel Table 17 shows the range of valid values default values and resolution for each parameter Table 17 PDU setpoints Button Range Default Resolution Load Voltage THD 96 3 0 to 99 9 15 0 0 1 Neutral Current of nom 10 to 200 95 1 Ground Current A 1 0A to 50 0A 5 0A 0 1 Load Bus Overcurrent of nom 50 to 100 100 System Settings The System Settings choice under the Config menu displays another pop up menu with three choices Comm Options System Options System ID To access the System Settings menu 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Config menu 103 Touch Screen Display Comm Options The Comm Options dialog box allows you to configure the communications settings for the Liebert STS2 PDU Select COMM OPTIONS from the System Settings Menu The Comm Options dialog box is displayed See Figure 69 An option can be enabled by selecting YES An option can be disabled by selecting NO An option can be configured by selecting the adjacent option button to display a separate configu ration dialog box The instructions for configuring the communications options are provided in this section Figure 69 Comm options dialog box Comm Options YES vES NO Option buttons Input Contact Isolator YES NO Prog Relay
213. urce 1 is under voltage Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured 136 Event Message Help Text INPUT 2 OVERVOLTAGE Input 2 Overvoltage Source 2 is over voltage Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Services if available in your area For international areas not covered by Lie bert Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Lie bert STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if t
214. ure OR 0 option not installed or feature not enabled Enabling or disabling the bits in each group creates a binary value for that group For example if the fourth bit in a group is set to 1 the group s binary value is 0001 Each group is translated into a hexadecimal equivalent The group with the value of 0001 has a hex equivalent of 1 You can use Table 15 below to help with the conversion Table 15 Binary hexadecimal conversions Binary Hex Value Equivalent 0000 0 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 m OOUu ioj oj oj o o N 2 The hex value for each group is entered command as four digits To summarize the procedure 1 Set each bit position 2 Convert the binary value each group into its hex equivalent 3 Enter the hex values for each group in order into the command for the value parameter The following example explains how the conversion is completed 92 Communication Interfaces 12 1 4 Putting the Terminal Command Together For example a unit only has the Remote Source Selection and Dual Output Breaker options installed Checking the bits list under Options_1 on page 91 bits 7 and 0 each must be set to 1 to indicate that these options are installed The bit setting is as follows starting with bit 15 on the left and going down to bit 0 0000 0000 1000 0001 With
215. wer distribution unit The Liebert STS2 PDU shall include two isolation transformers connected to a solid state three pole dual position static transfer switch designed to automatically and manually switch between two syn chronized three phase AC power sources without an interruption of power to the load longer than 4 milliseconds 1 4 cycle Input output bypass circuit breakers and a distribution section shall be included to form an integrated system in a single freestanding enclosure The preferred source is the input source that normally carries the load when both sources are avail able The preferred source is selectable by the user from the LCD panel or an optional Remote Source Selection The unselected source is referred to as the alternate source and carries the load if the pre ferred source should fail or if a manual transfer is initiated The unit uses Silicon Controlled Rectifiers SCRs connected in paralleled opposing pairs to function as an AC switch configuration Three pairs of SCRs connect the AC load to the selected preferred input source as long as the preferred source is available A second set of SCRs stands ready to trans fer the AC load to the alternate input source should the preferred source fail The switching action is a very fast break before make with less than a 1 4 cycle break in the AC waveform During static switch transfers and retransfers the conduction state of the SCRs is carefully moni tored and control
216. y Log 2 NOTE Some menu choices display a keyboard or keypad on the touch screen Enter data on the touch screen Click OK to save the data that you have entered Use the back arrow button lt to delete unwanted characters This button functions like a backspace key on a keyboard Figure 63 Keyboard and keypad displays Backspace KEYBOARD ENTRY TOOL Primary Line alls AAE EENE SHIFT m KEVBOARDENTRYTOOL X l MIN MAX 1 30 45 m OK Cancel Backspace 96 Touch Screen Display 13 2 1 Security Because the Liebert STS2 PDU Color Graphical Display provides access to various configuration and monitoring choices a password or key lockout switch may be used to protect access to certain changes including Change configuration settings Clear logs Make a source transfer Reset an alarm Without entering the password or enabling changes with the key lockout switch you still can View the display including the mimic status and event help View logs View the startup and bypass procedures Use the SILENCE button to turn off the audible alarm Using the Optional Key Lockout Switch An optional key lockout switch for the Liebert STS2 PDU enables or disables the ability to make changes on the Liebert STS2 PDU The key lockou

Liebert® STS2/PDU™ - Emerson Network Power

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Liebert&reg; STS2/PDU&trade; - Emerson Network Power

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Liebert® STS2/PDU™ - Emerson Network Power