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HP 62003A-62048A User's Manual

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1. SISSYHO 831920178 7 5155 NO 0319901 en tN SISSVH2 NO 9319007 112 62 Z 2187029 3S LON 2 UN 3X NO 631 201 GI 2 1 S310N 389029 382029 392029 381029 361029 32 029 301029 NO 0350 LON lu uoduioo salyddng 9149 3 S ER ide 57 222 lt SESS eee E IE QUEUE 20 00 DUE Se 2 RENAE 2 2 2 5 2 2 dn AR 5 2 HES Sy USE PEOR lt RED EX ESS SRE RES 3 2 NSA 357 AY vU 5 3 A eS Sets s xS 5 Sue 22 E Sus VY 5 Hens S EC Es 15 Eds Uis 2015 3 aoo RUD EATER OU 25 2 20 2 Beant a 5 Aras Als qd 222 2 SRA SS 290029 29002 9 090029 060029 90029 72002 9 7 0029 90029 S1300N 2 8 HO V XION3ddV HO HO NOLLdO OL 33 SiH Brevi E 3181 33 aid i 397 i 39VI10 2 5622 1 82 335
2. GBYNSVAW S3OVITOA iNIOd 1531 8 OV 2v 41 100 934 MOVES NMOHS 349 sn NHL In 510380 G31V8931NI 804 SNOIIVOO1 Nid 0 Ad AL HOV3 NMOHS SOLLVN3HOS 4 5 53174405 AOI 39V L OA 303 AH Ol 5231714405 MOTJ8 TIY 303 QVd OL Q3193NNOO IM 2 GALVOIGNE 3SIMH3HIO SSTINO SGVYVIONDIN SHOJIOVdVO 7779 9 SSIMYBHLO SSAINA F 680151538 TW 401 99 01 01 NE dd 3SIMH3HLO SS3TNQ AST SHOISIS3M 27555 SNHO NI 5 181538 S 853 HiVd 29 99333 IN3HUND 310 NOVEOSTd FOVIIOA LNVISNOD 5310830 S1N3NOdWOO SISSYHI SALONIC Z 138 NMOHS SHOLSISNVHL 4 SNOLIVOO Nid 6 O31VOIQN 3SIAH3HlO SS3N Od NO 9219207 38V SINANOGWOO TIY 1 310N s MEZI 2 1 MG 0 carol o Agi 90 peter 38 029 ASS AGE 49701 000 MOL OS 2201 E MOI MS 2 Ab 382029 901 006 Sli 52 S X ne 40 41 Fb2 0092 MS Ed 5948 381029 ag St get 80 AGOZ 50 0091 SLOTS 34029 54 AS 90 241 321029 ME i MOI 0479 301029
3. 1 2 1 10 OPTIONS 103 1 11 Options are factory modifications of a standard instrument that are requested by the customer The following options are available for the instruments covered by this manual Where necessary detailed cover age of the options are included in the manual OPTION NO DESCRIPTION 011 Overvoltage Protection Crow 104 A completely separate circuit for protecting delicate loads against power supply failure or operator error The crowbar circuit monitors the output voltage and within 10 usec imposes a virtual short circuit conducting SCR or triac across the power supply output if the preset overvoitage margin is exceeded The crowbar circuit is contained ona printed wiring board that is mounted inside the power supply The activa tion trip voltage of the crowbar is adjustable screwdriver adjustment over the following minimum range from 0 5 above minimum rated output voltage to 2 Vdc above maxi mum rated output voltage 101 220 Vac single phase input Supply is normally shipped with a 120 Vac nominal transformer Option 101 replaces this transformer with a 220 Vac nominal transformer and allows operation from a 190 233 Vac 48 63 Hz single phase input 102 240 Vac single phase input Supply is normally shipped with a 120 Vac nominal transformer Option 102 replaces this transformer with a 240 Vac nominal transformer and allows operation from
4. MODULAR POWER SUPPLIES A C AND E SERIES MODELS 62003 62048 62003C 62048C AND 62003E 62048E OPERATING AND SERVICE MANUAL FOR SERIALS 1210A 00101 AND ABOVE Serials Above 12104 00101 a change page be included Hewlett Packard HP Part No 5950 5969 Printed May 1972 SECTION GENERAL INFORMATION 1 1 DESCRIPTION 1 2 Hewlett Packard modular power supplies are completely solid state employing high reliability tran sistors and integrated circuits The power supplies are packaged in three uniform height and depth cases that are fractions of the standard 19 inch rack width The supplies can be bench operated or rack mounted indi vidually or in any combination to full rack width or less The modular power supplies are of the Constant Voitage Current Limiting type furnishing full rated output voltage at the maximum rated output current The output voltage can be adjusted between 0 5 V or 5 whichever is greater of nominal while providing full rated output current The supply and load are fully protected from current overloads by a self restor ing current cutback circuit that causes the output current to cutback linearly from approximately 103 to approximately 10 of rated output as the load varies from slightly above the maximum rated value to a complete short circuit The current limit cutback activation point is adjustable anywhere between the 103 and 10 limits 1 3 Either
5. 1 i i iT Rg 7 i SEE TABLE n i NOTE Y TO SERIES REGULATOR COLLECTOR VALUE S FOR MODEL S IN OHMS 82018 62024A 62028A 62048A 62018C 62024 620286 62048C 62010A 620124 62015 62018 62024E 620 28E 62048E COMPONENT 62003 62004A 620054 620106 620125 52018 620186 620246 620286 620486 909 IK 1 626 196 215 2 21K 2 37 R2 1 8 8 178W 178 _ 89 ew i TRIK LEK 196 2 87K S TSK 75K 9 31 3 3K ek 28 7K R4 BW Bw i BW BW Vaw i 8W i 1 8W 100 135 i aid 3w 22 eNO 1 6A 0 125 2 0 25 HBA 0 25 18A 0 25 3W 0 5 3W 28 0 5 3W 1 3W SW aw 3W 18 0 25 54 0 5 5W 28C 48 0 125 eC JUMPER 0 28 2 0 25 150 025 118 0125 5 248 025 28E hpo 2 SW i RIS BW 3W SW SW 180 SOn Swi 246 SW 286 486 05 5W M 1e a I A T mais m 18 28 1 48 246 IK 286 imik F IK 184 28 48E j R45 j K iK 186 LBK 246 280 LBK 486 1 8 PX NOTES L AND R9 PROVIDED FOR 62003A AND 62004A ONLY DELETED JUMPER INSTALLED AND R9 DELETED FOR ALL OTHER MODELS NO CONNECTION FROM CROWBAR BOARD TO NEGATIVE SIDE OF C9 2 R 7 PROVIDED FOR 620186 THROUGH 620486 SUPPLIES ONLY ALSO
6. 1901 0416 144999 5 13 BVCER 70 0 7 1W GAW 35 200 ft GOMHz 2N4036 2N43 14 BVCEO 40V 0 4 0 31W 90 180 ft 90 2 120V 0 5A 1W 35 min ft 150MHz BVCEO 50V 1 1A 0 8W ICBO 10nA ft 5OMHz 80 15A 175W GAW 50 90 ft 500 2 2N3055 2N5038 PIV 100V 15A 150W isurge 150A 21 10 Int Rect Discrete Diodes PIV 200V 100 C 100W Isurge 100A 21 10 int Rect Discrete Dlodes 21PT 10 Int PIV 100V 1 15 150W isurge 150A SECTION REPLACEABLE PARTS 6 1 INTRODUCTION 5 2 This section contains information for ordering replacement parts Table 6 4 lists parts alpha numeric order by reference designators and provides the following information Reference Designators Refer to Table 6 1 b Description Refer to Table 6 2 for ab breviations Total Quantity Given only the first time the part number is listed except in instruments containing many sub modular assemblies in which case the TO appears the first time the part number is listed in each assembly d Manufacturer s Part Number Type e Manufacturer s Federal Supply Code Num Refer to Table 6 3 for manufacturer s name and address f Hewlett Packard Part Number Recommended Spare Parts Qu
7. EO0 O b OSLO Stu 2 4241 48 Ola 84 2 06 90A TOON 48 indino 404100 SLINANOdWOD OLLVW3HO2S 31831 CLUE MBER on ys 842 ae j 8 BO v I HO 110 430 ae gt ane 1 OL 5 1 vel 51 mest 22 ase 98 002 5 10 NS L 213 512 21M 2 ager 4 pie 824 ASS 2 2 Xe c AE Ole ta n 20 1 K 9 2 _ 009 8 V 0 244 FOVLIOA AINPLSNOD 153802 ES YO NOLLdO CL HOLSIS3M I NI1dAVS El REGO x gid AVNIWH3 L ASE 40 519 22H I ASL t iii 52 Rea ie us 29 3 SHAT in 9 AZ 9 e 4 H 8 39055 1 SCIASIV 1 082 329 28 GIA SNES NOSIBVOWO2D 2 aim ut A
8. 09 38 2A Bv 490 i Su 01 NOI1dO i A295 WOH At Zit a En _ st I 39v470A WtISN027 7 8 HO Y XIGNIdd A rO BO rov 33891 395 54 00 HO NOLLdO ied m 001 A tayi 339 12 5015153 98509 5 HU3H 181 Ofd 2 8 HO Y XIQN3349 YE MOHD bor 40 EEO NOlLdO AOR f 31871 335 At git 5189 EN TINY 5 LIMIT ANIA AID SEI 8 30 V XIGN3ddV HYGAOMO HO 110 NOE LO 01 w 8 HOY XIGN3ddV Hy8M 0229 c 934 SHY FS tO 0440 XNIS LAVSH _ 335 619 335 240029 1 220509 613008 O 894 ON HO 513009 HOA 0709 SHIM 521900 X ILON ROTA SLUVHD 335 1300W 933 CGALIANNGS Oa NE 5 e CNSS VISA Xt 101 17880 1 L i t2 g i 336 2891 oe bo 20v S E 525 d 6 310N 335 8 13008 Iy NO GISA 21 30010 AZ9 w 7 ADOS AGE b O 2 Av 21 IB 1048 74006 32N 3a 3 338 I JO SNO
9. OPERATION Figure 2 3 Primary Connections For 120 240 Vac Operation option 103 and Suffix Models Only 2 4 2 21 REPACKAGING FOR SHIPMENT 2 22 safe shipment of the instrument it is recommended that the package designed for the instru ment be used The original packaging material is re usable If it is not available contact your local Hewlett Packard field office to obtain the materials This office will also furnish the address of the nearest service office to which the instrument can be shipped Be sure to attach a tag to the instrument which specifies the owner model number full serial number and service required or a brief description of the trouble SECTION Ill OPERATING INSTRUCTIONS 3 1 TURN ON CHECKOUT PROCEDURE 3 2 The following checkout procedure describes the use of the voltage control and ensures that the supply is operational a Before connecting input power to unit connect external voltmeter across S and S terminals at rear terminal board b Connect unit to input power source using AC ACC and ground terminals at rear Use proper wire size in accordance with the input AC current rating Observe output voltage of supply on external meter Output is factory set to nominal voltage If de sired VOLTAGE ADJUST screwdriver control ac cessible through cutout on front panel potentiometer can be used to set output to any voltage within adjust ment
10. Fort Washington Pa Belden Corp Chicago 11 Bud Radio Inc Willoughby Ohio Cambridge Thermionic Corp Cambridge Mass Bussmann Mfg Div of McGraw amp Edison St Louis Mo CTS Corp Elkhart Ind I T T Cannon Electric Inc Los Angeles Calif Giobe Union Inc Centralab Div Milwaukee Wis General Cable Corp Cornish Wire Co Div Willlamstown Mass Coto Coil Co Inc Providence Chicago Miniature Lamp Works Chicago Cinch M g Co and Howard B jones Div Chicago Dow Coming Corp Midiand Mich Electro Motive Mfg Co Inc Willimantic Conn Brooklyn N Y General Instrument Corp Newark N J Drake Mfg Co Harwood Heights Ill Elastic Stop Nut Div of Amerace sna Corp Union Erie Technological Products Inc Erie Pa Hart Mfg Co Hartford Conn Beckman Instruments Inc Helipot Div Pullerton Calif Fenwal Inc Ashland Mass Hughes Aircraft Co Electron Dynamics Div Torrance Calif Amperex Electronic Corp Hicksville N Y Bradley Semiconductor Corp New Haven Conn Carling Electric Inc Hartford Conn Federal Screw Products Inc Chicago 11 Heinemann Electric Co Trenton 1 Hubbell Harvey Inc Bridgeport Conn Amphenol Corp Amphenol RF Div Danbury Conn Johnson Co Waseca Minn IRC Div of TRW Inc Philadelphia Pa Howard B Jones Div of Cinch Mfg Corp New York N Y urz and Kasch Inc Dayton Ohio Kilka Electric Cor
11. a T P C negative with respect to G 1 8 positive with respect to G 0 7V a Unit in Constant Voltage mode proceed to Step 6 b Unit in current limiting mode proceed to current limit trouble shooting Table 5 5 Do not perform Steps 6 and 7 if unit is in the current limit mode H the output is shorted performing Steps 6 and 7 wil damage the series regulator Check conduction capability of series regulator by shorting driver transistor Q3 emitter to collector Output voltage increases b Output voltage remains low a Proceed to Step 7 b Series regulator transistor s O4 O5 open Wiring to heat sink open 5 8 Table 5 3 Low Output Voltage Troubleshooting Continued STEP ACTION NOTE O3no Check conduction of drive Q3 by shorting collector of Q2 T P D to S terminal Check conduction of Q2 by shorting T P D to 5 Check turn up capa bility of U2 by shorting pin 2 of U2 to 5 RESPONSE t included on 62048A To check series regulator perform action of Step 7 a Output voltage increases b Output voltage remains iow a Output voltage increases b Output voitage remains low a Output voltage increases b Output voltage remains iow PROBABLE CAUSE a Proceed to Step 8 b Driver transistor Q3
12. 335 i H EA ae P i 1 1 Trad 0 339 AF x i X68 1480 19 S AOS 21 981 WOH 4 AFBI Nea 3 i ts i 5 H pts a _ 20 TAWY NOSIEYANOD _ Nos jov 39V470A LNVLSNOD inevi 34001 i H 8HO Y XION3ddV aas 4 812 i i bOI HO 001 LOM oo NOLLdO ezo 01 I SHIMMY 0 i 4 07138 335 55 quvog 4938412 38029 1300W ing d VINE E 335 318 1 339 L 504 132 H3IJ11038 ira E pA 20 M uv38 181 igl Ord 95 o d aye i 098 Y xIQN3daV e HUBAOHO POL 110 NOlLdO 9 T 1 8 4 ASZ 490 2 Td LIMIT 143402 18 HO V XIGN3ddV HO 0490 01 ne ATddf1 FINI III M SA3IA 401 NINO 387029 90 9 bn vn en zn In INOILYB3dO AVION LNVISNOO Ni NIDIVIL SONIQV3H TIY WOVE CUVOIdAL 34 SONIOV3H G 5401 G35N3833438 S3OVELTIOA TY 9 2 OVAGH 8 LNA TWAINGS V22b TIGON SNOLLIQNOO 9NIMOTIOd
13. 77122 77147 77221 77252 77342 Ind 77630 77764 78189 78452 78488 78526 78553 78584 79136 79307 79727 79963 80031 80294 81942 81073 81483 Grayhill Inc La Grange International Rectifier Corp El Segundo Calif Columbus Electronics Corp Yonkers Goodyear Sundries amp Mechanical Inc New York Airco Speer Electronic Components Du Bois Sylvania Electric Products Inc Electronic Tube Div Receiving Tube Operations Emporium Pa Switchcraft Inc Chicago Metals and Controls Inc Control Products Group Attleboro Mass Research Products Corp Madison Wis Rotron Inc Woodstock Vector Electronic Co Glendale Calif Carr Fastener Cambridge Mass Victory Engineering Corp Springfield N j Bendix Corp Electric Power Div Eatontown Herman Smith inc Brooklyn N Y Central Screw Co Chicago HL Gavitt Wire and Cable Div of Amerace Esna Corp Brookfield Mass 81751 82099 82142 82219 82389 82647 82866 82877 82893 83058 83186 83298 83330 83385 83501 Racine Wisc 83835 83877 84171 84411 86684 86838 87034 87216 87585 87929 88140 88245 90634 30763 91345 91418 91506 91637 91662 91929 92825 93332 93410 94144 94154 94222 95263 95354 95712 95987 96791 97464 97702 98291 98410 98978 99934 MANUFACTURER ADDRESS Grant Pulley and Hardware
14. 0689 3025 0689 5125 0812 0091 0686 1015 1820 0223 1902 0064 1902 1221 2110 0012 2110 0063 1854 0563 2100 3255 2100 3254 Ti 62003A thru 62005A Power Transformer 5080 7193 62006 thru 62015 Power Transformer 5080 7194 62018A thru 62028A Power Transformer 5080 7195 62048A Power Transformer 62048 80091 1 Terminal Block Rear 7 Term 0360 1766 TC1 Thermal Switch open 220 6 close 195 8 F 3103 0018 Mechanical Wrap Around Cover 62003A 62003 60001 62004A 62004 60001 62005A 62006 62010 62012 62015 62015 60001 62018A 62018 60001 62024 62024 60001 62028 162028 60001 6 7 REF DESCRIPTION MFR PART DESIG CODE NO 62048A 62048 60001 1 62003A thru 62006 62010A thru 62048 T1 62003A thru 62005A 62006A thru 62015A 62018A thru 62028A 62048 62003A thru 62006 62010A thru 62048A Side Panel Snap Bushing Side Panel Current Limit Adj Terminal Btock Jumper TB1 Terminal Block Cover TB1 Heat Sink 04 insulator Mica Q4 insulator Transistor Pin Q4 insulator Shoulder Washer O4 Fuseholder F1 insulator Fusehoider Bracket Rear Chassis Bracket Voit Adj Tie Wrap C9 and C11 Plug Crowbar Adjust hole Packing Carton Floater Pad Packing Carton Floater Pad Packing Carton Float
15. 82 5230010 31345519 350 AMINO 291029 921029 20029 51300 513009 TIY STAGOW ONINIVW33 39V30Vd 721 320010 350 281029 201029 STACOW 6 vn gn zn in NOlLVH3dO 39V110 LNVISNOOD NI SONIGV3M TIV 3 F 387 S9 NIQy33 5 OL G39N383338 S3OVIIOA TIY LASNE OVASIE 8 2vio oy 4 LNSTIVWAINOS HO TIGON dH V 8 Ut SNOILIQNOO GBYNSVSWN S3OVIIOA INIOd 1531 8 104 934 4 293 404 NMOHS 38V SOLLVIW3HOS 31VMVd3S 25311446 JAQAY ONY 39VL IOA 01 ONY 53114405 MO138 NMOHS 3uY bn SLAOMD Q31VHO31NI 530119201 Nid H CAO MOT38 11 1 OL S 2 SM3IA 801 Q31V2lQN 3SIAHJHLO 5531 SOVHVJOHOLN NI SHOlIOVdVO Tv 9 99 01 01 Q31VO lON 3SUMMSHIO 55334 580151838 TIY aay 431 ASIMYBHLO SSIINN AGF SHOJSIS3H SWHO 580151538 11 G 44 3 50 22999333 5340439 ge 20989334 39VL10A 1 715800 6310 30 SiN3NOdWOO GBLNAOW SISSVHO SILONJG 2 MOTIS NAOHS IHY SHOLSISNVHI HOS SNOIIVOO Nid 01 JSIMMSHLO SS31Nn QHVOS Od NO 0319201 3HV SIN3NOdWOO TIY 1 S310N ago ADOI TTR T 289029 ezo 28 05616 000 i 2 I 196 OS 012
16. FOR THESE SUPPLIES R45 MOUNTED ON CHASSIS FOR ENTIRE A SUFFIX SERIES R45 MOUNTED ON MAIN POWER SUPPLY PRINTED WIRING BOARD FOR OTHER C AND SUFFIX SUPPLIES R45 MOUNTED ON CROWBAR PRINTED WIRING BOARD 3 ALL RESISTORS IN OHMS 1 24 RESISTORS 4 5 ALL i 8W RESISTORS 21 UNLESS OTHERWISE INDICATED 4 ALL CAPACITORS IN MICROFARADS UNLESS OTHERWISE INDICATED Figure 1 Option 011 Crowbar Schematic Models 62003A thru 62048A 62006C thru 62048 62018 thru 62048E and 62018G thru 620480 P O TRE RE P O MAIN POWER SUPPLY CROWBAR BOARD BOARD POWER CROWBAR PC BOARD e 23V UNREG FROM REFERENCE SUPPLY LaK 5 3W I CROWBAR SINK 9 Anuust cre Ras f SEE impo 3439794 S pou 3 Rie Ra N TABLED SEE TABLE Z P O TSI RS 24 L TABLE 8 pc at TURN OFF a4 CURRENT LIMIT AMPLIFIER tU3 PIN2 R9 SEE 1 RIO 19 SEE TABLE TABLE SERIES REGULATOR 1 3 COLLECTOR VALUE PER MODELS iN OHMS TRAE 26 ui m a 62004C 62005C T 62004 62005
17. HOLES CURRENT 10 32 THREADED ADJUST INSERTS et zamm la 9 85 4mm INPUT OUTPUT REAR TERMINAL SCREW SIZE 6 32 5 03 Remm 4 44 w i 1 3 94 re 2 1 242 3 mm 1 50 iad 292 mm 620030 62003E 620040 62004 620056 62005 620060 62006 620100 62010 62012C 62012 62015C 62015 E SUFFIX MODELS 1 4 WIDTH PACKAGE 4 HOLES 62018 62018 10 52 THREADED 620246 62024E BOF 620280 62028 8 208 8 COVERS 620480 62048 BOTTOM Figure 2 1 Outline Diagrams Modular Power Supplies 2 15 INPUT POWER REQUIREMENTS 2 16 The modular power supplies may be operated from a nominal 120 Vac 220 Vac or 240 Vac 48 63 Hz power source The standard supply options is shipped from the factory wired for 120 Vac nominal operation and requires the following maxi mum input current and power at high line 127 Vac voltage input AC INPUT at 127 Vac MODEL CURRENT POWER 74W 620046 79W 30W 97W 97W 95W 39W 62028 44W 62028C 95 eoe 20A 2 3 2 17 220 240 VOLT OPERATION 2 18 As applicable Options 101 102 and 103 stalled at the factory permit the supply to be operated froma 120 220
18. or 240 nominal input line Option 101 provides for 220 Vac operation while Option 102 allows 240 Vac operation Option 103 however provides for either 120 Vac or 240 Vac oper ation at the selection of the user as described below _ 2 19 Option 103 Power Transformer Connections suffix Models For the A suffix models the pri mary connections of the supply are changed at the in board side of the rear power input terminals For 120 Vac operation as shipped two leads are soldered from each of the ac input terminals as shown in Figure 2 2B To connect the supply for 240 Vac oper ation unsolder the wht blk yel and wht bik grn leads and twist them together with a wire terminal as shown in Figure 2 2A WHT GRY A INPUT POWER TRANSFORMER TH PRIMARY CONNECTIONS FOR 240V OPERATION WHT GRY INPUT POWER TRANSFORMER TD PRIMARY CONNECTIONS FOR 120 OPERATION Figure 2 2 Primary Connections For 120 240 Vac Operation Option 103 A Suffix Models Only 2 20 Option 103 Power Transformer Connections and E Suffix Models For the C and E suffix models the appropriate power transformer 120 240 V terminals must be connected as shown in Figure 2 3 Notice that the transformer connections are changed at the transformer terminals shown in the illustration INPUT POWER TRANSFORMER 11 PRIMARY CONNECTIONS FOR 240V OPERATION B INPUT POWER TRANSFORMER PRIMARY CONNECTIONS FOR 2
19. vn 2 AO138 NMOHS 3HY SN I SLINOMID Q31VHOSINI HOd SNOLLV501 Nid Q31V21QNI 35143810 6631 SOVHVJONOIW NI SHOLIOYdVO TIY 9 404 bonas 99 0 OlL QG31VOIGNI 35 553740 AIF SHOLSIS3H 48 1 TIY 01 d31V210NI 3S1AH3HIO SS3 Nn ASF SHOJSISSM T1V SWHO NI SHO1SIS3H S O EA 20 2 80 333 IN3HHDO SALONO gt ge HiVd 2 80 333 9 1 1 15 02 53108304 SAIN3NOdMOO GALNNOW SISSVHO S310N30 Z MOT3H 5 389 SHOLSISNVHI SNOLLVOO1 Nid 6 Q31V910N SSIMMSHLO SS31ND 98 NO 1 201 3HV SINS3NOdWOO T1V 1 SALON MS AZ S 60 29 390029 EEO 89 oz 82 83 me AZ ASi 50191 390029 Si ME 6 02 0086 22 e wine MOI Agi GOFF 3 0029 122 A2i 3coo29 Of 89 Op 0012 9 628 Z 028 W 88 212 39VEL1O 9 08 5 1 0 20 SlN3NOdWOO OLLVWUHOS ios ANALNO 9 282029 292029 281029 261029 4221029 201029 v82029 2029 781029 7761029 Y21029 VOIO29 S13d0N Pai 8 NOV HO J HO MM um RM D 8 oe avi
20. ww 4 7k 5 fxd ww 6 8k 5 3W fxd ww 10k 5 3W Not Used fxd ww 2100 1 1W fxd ww 2950 1 1W fxd ww 3800 1 1W fxd ww 4660 1 1W fxd ww 10 750 1 3W fxd ww 12 900 1 3W MFR PART NO 34D307G040GJ2 0180 1805 0740 0200 0160 0174 0150 0052 HP PART NO 0180 2520 0180 2510 0180 2521 0180 1860 0180 1856 0180 0100 0180 1836 0160 0161 0160 2197 0160 0174 0160 2199 1901 0327 1500475 903582 192 10392 RDM15C10053C RDM15E300J3C IN5059 iN4999 1901 0416 115059 1901 0327 145059 1901 0327 IN485B 1901 0033 1901 0460 1854 0095 1853 0099 40346 MM2258 1854 0271 EB 1525 0686 1525 CEA 0698 5087 Type CEA T O 0757 0420 0811 1978 242E3625 0811 1810 0811 1812 0811 0960 0811 1816 242E6825 242E 1035 0811 3187 0811 3192 0811 3195 0811 3193 0811 3194 0811 3186 DESCRIPTION MFR PART NO MER HP DESIG CODE PART NO 6 6 62015A fxd ww 16 100 1 3W 0811 3196 62018A fxd ww 19 350 1 3W 0811 3190 62024 fxd ww 25 800 1 4W 0811 3188 62028A fxd ww 30 050 1 4W 0811 3191 62048A fxd ww 51 550 1 SW 0811 3197 R10 62003A thru 62006A fxd comp 1k 5 1 2W EB 1025 0686 1025 62010A thru 62015A fxd comp 3 9k 596 1 2W EB 3925 0686 3925 62018A fxd comp
21. 104 crow goes high voltage condition proceed to bar disconnect crowbar Table 5 4 SCR by lifting one end b Crowbar defective proceed to of R13 or R14 resistor Table 5 6 in series with SCR on Internal short or current limit crowbar P C board circuit defective proceed to Step 2 If unit does not have crowbar option proceed directly to Step 2 b Output voltage goes to normal Output voltage remains low a Capacitor C11 or protection diode CR9 05 shorted a Resistance less than value of R19 see schematic b Resistance more than value of R19 Remove input power and connect ohmmeter across output terminals b Proceed to Step 3 VR1 defective b CH14 shorted U3 defective Check for presence of 7 5V across Zener diode VR1 a Voltage incorrect b Voltage correct Table 5 6 Crowbar Troubleshooting Option 011 or 104 SYMPTOM PROBABLE CAUSE Crowbar always on won t reset or CR6 shorted Hf shorted check O4 for open Crowbar won t trip open or shorted b Q2 or open or shorted c R45 crowbar adjust open d CR4 if used shorted e 23V bias missing Crowbar trips but won t latch a CR3 lif used open oscillates on and off Crowbar trip point shifts or is susceptible defective to external noise b R45 intermittent
22. 4 3k 5 1 2W 4325 0686 4325 62024 fxd comp 5 6k 5 1 2W EB 5625 0686 5625 62028A fxd comp 7 5k 5 1 2W EB 7525 0686 7525 62048A fxd 22 5 1 2W EB 2205 0686 2205 R11 fxd ww 1k 5 3W 242E 1025 08 13 0001 R12 fxd comp 7 5k 596 1 2W EB 7525 0686 7525 R13 fxd comp 560 596 1 2 EB 5615 0686 5615 R15 Current Sampling 62003A thru 62005A fxd ww 0 125 1096 3W Type CW2B 1 0811 1828 62006A thru 62015A fxd ww 0 15 5 3W 0812 0045 62018 fxd ww 0 25 10 3W Type CW2B 1 0811 1829 62024 62028A fxd ww 0 33 5 2W Type BWH 08 12 0066 62048A fxd ww 0 51 5 2W Type BWH 0811 0929 R18 Current Limit Adjust 62003A thru 62006A var ww 5 2096 1 5W Type 110 F4 2100 1821 62010 thru 62048A var ww 10 2096 1 5W Type 110 F4 2100 1822 R19 62003A thru 62006A fxd met oxide 30 596 2W 0764 0041 62010 thru 62018A fxd met oxide 270 596 2W Type C 425 0698 3629 62024A 62028A fxd met oxide 560 596 2W Type C 425 0764 0015 62048A fxd met oxide 1 1k 5 Type 242 0811 2878 R20 62003A thru 62005A 62018A thru 62048A fxd met film 139 1 1 8W Type CEA T 0 0698 4099 62006A thru 62012A fxd met film 150 1 1 8W Type CEA T 0 0757 0284 62015A fxd met film 107 1 1 8W 0698 4405 R21 fxd met film 68 1k 1 1 8W Type CEA 0 0757 0461 R22 fxd comp 100 5 1 2W EB 1015 0686 1015 R23 fxd comp 560 5 1 2W EB 5615 0686 5615 R25 fxd comp 1 3 5 1 2W EB 1325 0686 1325 R26 fxd comp 270 5 1 2W EB 2715 0686 2715 27 62003A thru 62028
23. 50V dc fxd elect 5 900uF 85V fxd elect 8600uF 25V dc fxd elect 3000uF 40V dc Fuse 3A 250V Fuse 4A 250 Power NPN 51 Voltage Adjust var ww 2700 5 2W var ww 1800 5 2W Power Transformer Power Transformer 6 16 MFR PART 28480 243E5005 243E7505 243 1315 243 2015 243E3015 243E6815 EB 3305 243E2015 243E4015 243E6015 243E 1025 243E3025 EB 1015 Type CW5 2 Type CW10 1 243E1RO05 LM301A 1 52368 1N825 192PA749R8 192 74988 312003 312004 0813 0040 0812 0083 0811 1854 0812 0097 0812 0098 0811 1204 0811 1215 0811 2099 0686 3305 0811 1204 0811 1857 0811 1860 0811 0099 0812 0050 0686 1015 0811 3176 0811 1848 0811 1890 0811 1340 1820 0223 1902 0064 1902 1221 0160 0970 0150 0970 0180 2524 0180 2525 0180 2526 0180 2527 62005 62006E 62010E 62012 62015 62018 62024 62028 62048 1 U4 62003 thru 620028E 62048E US DESCRIPTION Power Transformer Power Transformer Power Transformer Power Transformer Power Transformer Power Transformer Power Transformer Power Transformer Power Transformer Terminal Block Rear 7 Terminal Thermal Switch open 248 F 6 F close 223 F 8 F Diode Assembly Integrated Circuit Diode Assembly Integrated Circuit Full Wave Doubier 100prv 15A Mecha
24. 620068 6200 2012 62015 520046 620066 62006 620126 620156 Lik TL 1 8 2K 1184 18W i gw 1 36 4 BTK 6 i9K q 7 5K 1 84 8w aw ILE i 50 75 6E NOTUSED to RO 5w Bw 5e 90 54 1o iae sw 5C NOT USED ge pow Aso ven EOE sE NOT USED RIO 36 270 2W 46 510 1 2W 56 6804 234 EG K ow i JUMPER JUMPER ues 58 88 SON Ow OW USED 4C NOT USED 50 018 09 P 3 033108 4 0 33 0 5 035 6 033 iow I0E 0 25 10W 12 0 25 10 ISE O 25 00 RIS 36 018 10W 46 0 07 54 56 007 5W 66 007 5W 106 018 0 1126 0 8 0 96 048 4 1 4 se 6E QE 1K E IK IBE IK 36 L8K 46 18 56 1 66 8 106 L8K 845 PES NOTES L POINT WIRED TO 8 FOR 62003C THRU 520050 AND 62003E THRU 620156 SUPPLIES FOR 620036 THRU 620156 SUPPLIES POINT iS CONNECTED TO POINT 2 RIT PROVIDED FOR 620038 THRU 620156 SUPPLIES ONLY ALSO FOR THESE SUPPLIES R45 MOUNTED ON CHASSIS FOR OTHER C AND E SUFFIX SUPPLIES R45 MOUNTED ON CROWBAR PRINTED WIRING BOARD CR3 04 R8 AND PROVIDED FOR THE 6200236 62004C 62003E THRU 62005 AND 620036 THRU 620066 MODELS ONLY FOR ALL OTHER MODELS 620056 62006 AND 620106 THR
25. 62048 62018G thru 620486 REF DESCRIPTION PART NO Main Power Supply Board R45 62003A thru 62048A only Var ww 1K 5 1W Crowbar Adjust 106 4 2100 1758 Option 011 Crowbar Board C1 fxd mylar 0012 200Vdc 1 192P10392 0160 0153 C2 fxd elect 1uF 50Vde 1 30D 105G050BA2 0180 0108 CR1 Diode Si 250mW 200V 1 1901 0033 CR3 62003A 62004A Diode Si 200V 1 1901 0416 62005A thru 62048 62006C thru 62048C 62018E thru 62048E 62018G thru 62048G Not Used Jumper Installed CR5 Triac 1 1884 0220 01 SS NPN Si 1854 0071 02 SS NPN Si 1 1854 0087 R1 fxd ww 1 3K 5 3W 1 242E1325 0811 1803 R2 1 62003 fxd met film 909 1 1 8W Type CEA 0 0757 0422 62004A fxd met film 1K 1 1 8W Type CEA 0 0757 0280 62006A 6C fxd met film 7 1K 1 1 8W 0757 0424 62010A 10C fxd met film 1 62 1 1 8W Type CEA 0 0757 0428 62012A 12C fxd met film 1 78K 1 1 8W Type CEA T 0 0757 0278 62015A 15C fxd met fiim 1 82K 196 1 8W Type CEA 0 0757 0429 62018A 18C 18E 18G fxd met film 1 96K 1 1 8W Type CEA T 0 0698 0083 62024 24 24 246 fxd met film 2 15K 1 1 8W Type CEA 0 0698 0084 62028A 28C 28E 28G met film 2 2
26. 8W fxd comp 100 596 1 2W fxd comp 560 596 1 2W fxd comp 1 3k 596 1 2W fxd comp 270 596 1 2W fxd comp 10 596 1 2W fxd comp 8 2 596 1 2W fxd comp 1k 596 1 2W fxd met oxide 22 596 2W fxd met oxide 30 596 2W fxd met oxide 43 596 2W fxd ww 75 596 5W fxd ww 120 596 5W fxd ww 150 5 5W fxd ww 200 5 SW fxd met oxide 430 5 2W fxd ww 600 5 5W fxd ww 1 4k 5 3W fxd comp 75 596 1 2W fxd ww 470 596 3W fxd ww 490 5 fxd ww 820 5 3W fxd ww 970 5 3W fxd ww 1 5k 5 3W fxd ww 2k 5 3W fxd ww 4 7k 5 fxd comp 100 5 1 2W Operational Amplifier Diode zener 7 5V 400mW Diode zener 6 2V 250mW Chassis Electrical fxd mylar 0 47uF 25V dc fxd elect 8600uF 20V dc fxd elect 6600uF 30V dc fxd elect 5800uF 50V dc fxd met film 61 9 1 1 8W fxd met film 64k 196 1 8W fxd met film 68 1k 1 1 8W MFR PART NO MFR HP en CODE PART NO Type CEA T 0 Type CEA T 0 Type CEA 0 Type CEA 0 EB 1015 EB 5615 EB 1325 EB 2715 EB 1005 EB 82G5 1025 425 425 243 9505 243E1515 243E2015 Type C 425 243E6015 242E1425 EB 7505 242E4715 242 4915 242 8215 242 9715 242 1525 242 2025 1015 LM301A 1N5236B 1N825 0757 4 3 0757 0460 0698 6274 0757 0461 0686 1015 0686 5615 0686 1325 0686
27. A002 i 3350 VSI 048 v9 esl 00i ee 20 MUS 9350 100 0098 ION O08 ASi 50029 o 0862 9 M2 92 AGOFS ocooze 22 _ 921 9079 0029 001 091 O99b 79 2 ASO S OS2 Mi 2 assn Goes HES AOS 192 veoj 9 ec oc LON 52101 10N 4400 0009 so 3 5 950029 0662 429 i z AS OF lt 0029 0012 9 ld GZ 228 0285 BIH Siu 65 vo FOVLIOA 0 09 13408 L o u 14100 SiN3NOdWO 2O2iLVAJHOS ooo T n 1531 104100 390089 340029 370029 360029 51300 0 bO 93M 53 58 v 8 HO V XIGN3dd HO 01 335 y 8 HO V 0 3 335 i 110 NOLLdO 31891 OL 335 6 318v i 33 128 09 20 eta 2v 5 4 poe od i qt HY
28. C1 C2 open Crowbar circuit prevents supply from a 4 shorted reaching proper voltage but SCR is not fired 5 10 covered under the sympton Oscillation in Table 5 2 Random frequency noise is most often caused by a defective reference diode V R2 A defective U1 or U2 can also cause this problem 5 49 If a line frequency ripple problem exists check the ripple at the dc input to the reference supply across test points B and N It should be less than 600mV If it is significantly greater than GOOmV check C1 CR1 and CR2 is less than 600mV check the ripple between test point and S 46 2V The ripple at R should be less than 1mV p p If it is greater than 1mV check VR2 Q1 and U1 in that order 5 50 If the ripple is not excessive in the reference supply check the ripple across the main filter capac itor F to S It should be less than 200mV at no load or less than 3V p p at full load If the rippie here is significantly larger check C9 CR3 CR6 or U4 and C4 in that order 5 51 Spikes occurring at a 120Hz rate can be caused by an open C4 or C5 if included Try repositioning the leads in the rectifier area CR3 CR6 or U4 if the spike probiem persists 5 52 Crowbar Troubleshooting Units with Option 011 or 104 Only 5 53 The following table provides continued trouble shooting information for both option 011 and 104 Operating instructions circuit desc
29. Co Loveland Colo Corneil Dubilier Electronics Div Federal Pacific Electric Co Newark N J General Instrument Corp Semicon ductor Prod Group Hicksville N Y Fenwal Elect Framingham Mass Corning Glass Works Raleigh N C 17545 17803 17870 18324 19315 19701 21520 22229 22753 23936 24446 24455 24655 24681 26982 27014 28480 28520 28875 31514 131827 33173 35434 37942 42190 43334 44655 46384 47904 49956 55026 56289 58849 59730 61637 63743 Use Code 71785 assigned to Cinch Mfg Co Chicago 58474 Table 6 3 MANUFACTURER ADDRESS Delco Radio Div of General Motors Corp Kokomo Ind Atlantic Semiconductors Inc Asbury Park N J Fairchild Camera and Instrument Corp Semiconductor Div Transducer Plant Mountain View Calif Daven Div Thomas A Edison Industries McGraw Edison Co Orange N J Signetics Corp Sunnyvale Calif Bendix Corp The Navigation and Control Div Teterboro N I Electra Midland Corp Mineral Wells Texas Fansteel Metallurgical Corp No Chicago Union Carbide Corp Electronics Div Mountain View Calif UID Electronics Corp Hollywood Fla Pamotor Inc Pampa Texas General Electric Co Schenectady N Y General Electric Lamp Div of Con sumer Prod Group Nela Park Cleveland General Radio
30. Transient recovery time may be measured at any input line voltage combined with any output voltage and load current within rating 5 33 Reasonable care must be taken in switching the load resistance on and off A hand operated switch in series with the load is not adequate since the resulting one shot displays are difficult to observe on most oscillo scopes and the arc energy occurring during switching action completely masks the d splay with a noise burst Transistor load switching devices are expensive if reason ably rapid load current changes are to be acheived 5 34 A mercury wetted relay as connected in the load switching c rcuit of Figure 5 4 should be used for load ing and unloading the supply When this load switch is connected to a 60Hz AC input the mercury wetted relay will open and close 60 times per second Adjustment of the 25K control permits adjustment of the duty cycle of the load current switching and reduction in jitter of the oscilloscope display This relay may also be used with a 50Hz ac input 5 35 The maximum load ratings listed in Figure 5 4 must be observed in order to preserve the mercury wetted relay contacts Switching of larger load currents can be accomplished with mercury relays with this tech nique fast rise times can still be obtained but the large inertia of mercury pool relays limits the maximum repetition rate of load switching and makes the clear display of the transient recovery c
31. are checked with a full load resistance connected across the supply The resistance and wattage of the load resistor therefore must permit operation of the supply at its rated output voltage and current For example a supply that is rated at 4 0 5 volts and 4 amperes would require a load resistance of 1 ohm at the nominal output voltage AV If the out put voltage were set to one of the adjustment limits 4 5V or 3 5V the load resistance would have to in crease or decrease accordingly to allow the unit to provide its rated current of 4 amperes The wattage rating of the 1 ohm resistor would be 4 watts minimum 5 12 Either a fixed or variable resistor rheostat can be used as the load resistance A rheostat is very useful when measuring the output current of the supply and also is a convenience if the user is testing a number of modular power supplies of different ratings A rheostat of the type recommended in Figure 5 1 is adequate for any supply covered by this manual H a fixed resistor is used for output current measurements its tolerance must be accounted for in evaluating the test results 5 13 Output Current Measurements For accurate out put current measurements a current sampling resistor should be inserted between the load resistor and the output of the supply An accurate voltmeter is then placed across the sampling resistance and the output current at any time can be calculated by dividing the voltage across the
32. closure 1 12 ACCESSORIES 1 13 The accessories listed below may be ordered with the power supply or separately from your local Hewlett Packard field sales office refer to list at rear of manual for addresses HP Part No 62410A Description Rack Mounting Tray for mounting any combination of supplies 19 wide 5 1 4 high and 17 deep Refer to Section 11 for details 62411 Rack Tray Blank Front Panel 10 1 2 wide 5 3 16 high 1 8 thick 62412A Rack Tray Blank Rear Panel mounts on rear of rack mounting tray and allows installation of custom input output connectors or other hardware 62415A Rack Tray AC Distribution Panel mounts on rear of rack mounting tray and includes ac input terminal strip and line card 62414A Rack Tray Slides provide easy access to rack mounting tray and its supplies 62413A Rack Mounting Tray Cooling Unit provides forced air cooling of rack mounted supplies 1 4 1 14 INSTRUMENT MANUAL IDENTIFICATION 1 15 Hewlett Packard power supplies are identified by a two part serial number The first part is the serial number prefix a number letter combination that de notes the date of a significant design change and the country of manufacture The first two digits indicate the year 10 1970 11 1971 etc the second two digits indicate the week and the letter designates the U S A as the country of manufacture The second part is the power supply serial numb
33. decrease in the current flowing through R18 and R19 This in turn causes U3 to conduct even harder further reduc ing the conduction of the series regulator A SUPPLIES BELOW 10V 0 5 NOMINAL nd 89 TYPICAL CURRENT CUTBACK 104 OUTPUT B SUPPLIES 10V AND ABOVE 5 NOMINAL zer pe eomm m TYPICAL CURRENT CUTBACK CIRCUIT Lour Figure 4 2 Typical Current Limiting Characteristics 4 28 As described in Section the cutback point for the supply can vary from approximately 396 to 15 of the rated output current Resistors R20 and R21 determine the actual cutback point 4 29 Reference Supply 4 30 The reference supply is a small regulated bias source which is similar to the main power supply It contains a series regulator Q1 and a comparison am plifier 01 The three reference voltages are all derived from raw dc obtained from a full wave rectifier CR1 and CR2 and filter capacitor C1 The 6 2V and 7 5V outputs are developed across Zener diodes VR1 and VR2 The reference Zener diode VR2 is temperature compensated Resistor R4 limits the cur rent through V R2 to establish an optimum bias level 4 31 The regulating circuit consists of U1 O1 and associated components The voltage across the reference zener 46 2 V with respect to S and the voltage at the junction of divider R2 and R3 are compared and any
34. fxd comp 12 5 1 2W EB 1205 0686 1205 62048A Not Used R28 62003A thru 62028A fxd comp 1k 5 1 2W 0686 1025 62048 Not Used R29 62003A fxd met oxide 30 5 2W Type C 425 0764 0041 62004A 62005A fxd met oxide 56 5 2W Type C 425 0764 0013 62006A fxd met oxide 100 5 2W Type C 425 0698 3260 DESCRIPTION MFR PART DESIG fxd met oxide 200 5 2W fxd met oxide 270 5 2W fxd met oxide 390 5 2W fxd oxide 510 5 2W fxd met oxide 680 5 2W fxd met oxide 820 5 2W fxd met oxide 2k 5 3W fxd comp 75 5 1 2W 62010A 62012A 62015A 62018A 62024A 62028 62048 R30 R31 62003A thru 62010 62012A thru 62018A 62024A 62028A 62048 R32 33 U1 3 VR1 VR2 F1 62003A thru 62006A 62010A thru 62048A Q4 R7 62003A thru 62006A 62010A thru 62048A fxd comp 1 5k 596 1W fxd comp 3k 5 1W fxd comp 5 1k 596 1W fxd comp 5 6k 396 3W fxd comp 100 596 1 2W Operational Amplifier Diode zener 7 5V 400mW Diode zener 6 2V 250mW Chassis Electrical Fuse 0 5A 250V Fuse 0 75A 250V Power NPN Si Voltage Adjust var ww 2700 596 2W var ww 1800 596 2W Type C 425 Type C 425 Type C 425 Type C 425 Type C 425 EB 7505 6B 1525 68 3025 6B 5125 RS2B 95 1015 LM301A 0698 3627 0698 3629 0698 3633 0698 0030 0698 3635 0098 3637 0811 1806 0686 7505 0689 1525
35. open a Proceed to Step 9 b Driver Q2 open a U2 is good Check for defective input circuit component R5 R7 R8 R11 CR11 or CR12 b Check for open CR13 or de fective feedback capacitor C13 or C14 these components are good replace defective U2 Table 5 4 High Output Voltage Troubleshooting STEP ACTION wemowe PROBABLE CAUSE 1 Check turn off of series regulator by shorting base to emitter of O4 shortout R30 Check turn off of dri vers Q2 and O3 by shorting base of 2 T P G to S Check turn off capa bility of U2 by short ing summing point W1 of U2 to output terminal a Output voltage decreases b Output voltage remains high a Output voltage decreases b Output voltage remains high a Output voltage decreases b Output voitage remains high 5 9 a Proceed to Step 2 b Series regulator transistor s 04 05 shorted Protection diode or U5 shorted a Proceed to Step 3 b Driver transistor Q2 or Q3 shorted C18 or C19 shorted a U2 is good Check for defective input circuit component R5 R7 or R8 mE b Check for 7 5V bias If OK check for open CR13 or shorted C13 C14 CR11 or CR12 these compo nents are good replace defective U2 Table 5 5 Current Limit Troubleshooting If unit is equipped with a Output voltage a Crowbar fired due to high output Option 011 or
36. remote distribution terminals via a pair of twisted or shielded wires and each load separately connected to the remote distribu tion terminals For this case remote sensing shouid be used Paragraph 3 13 3 12 Positive or negative voltages can be obtained from this supply by grounding either one of the out put terminals or one end of the load 3 13 Remote Sensing See Figure 3 3 3 14 Remote sensing is used to maintain good regu lation at the load by reducing the degradation in regu lation that would occur due to the voltage drop in the leads between the power supply and the load Remote sensing is accomplished by utilizing the strapping pat tern shown in Figure 3 3 The power supply shouid be turned off before changing strapping patterns The leads from the sensing terminals to the load will carry much less current than the load leads and it is not re quired that these leads be as heavy as the load leads However they must be twisted or shielded to mini mize noise pick up Figure 3 3 Remote Sensing 3 15 For reasonable load lead lengths remote sensing greatly improves the performance of the supply How ever if the load is located a considerable distance from the supply added precautions must be observed to obtain satisfactory operation Notice that the voitage drop in the ioad leads subtracts directly from the avail able output voltage and also reduces the amplitude of the feedback error signals that are devel
37. span 0 5 V or 5596 as applicable NOTE The current limit may require readjust ment if the output voltage is set away from nominal Refer to Paragraph 3 8 d To verify operation of current limit circuit remove voltmeter and disconnect input power Connect short across output terminals of supply and reconnect input power Using clip on milliammeter HP Model 4288 or equivalent observe that short circuit output current is approximately 396 to 15 of rated output current Remove short and milliammeter Before necting actual load to supply read the following para graphs 3 3 OPERATION 3 4 The supply can be operated in one of two oper ating modes normal or remote sensing Auto Series Auto Parallel Auto Tracking and remote programming operation are not feasible with this supply The follow ing paragraphs describe both of those modes plus supplementary operating information More theoreti cal descriptions regarding the operational features of power supplies in general are given in application note 90A DC Power Supply Handbook available at no charge from your local HP sales office 3 5 Normal Operating Mode 3 6 The power supply is shipped with the rear term inal straps connected for Constant Voltage Current Limiting local sensing operation This strapping pattern is illustrated in Figure 3 1 Before connecting load to the supply check the rear terminals to ensure that the connections are co
38. the positive or negative output terminal may be grounded at the rear terminals 1 4 SCOPE 1 5 This manual provides installation procedures operating instructions principles of operation main tenance data and replaceable parts information for the thirty three Hewlett Packard modular power supplies listed in the following chart Note that the last two digits in the model number indicate the nominal out put voltage of the supply The A suffix supplies are 1 8 rack width units while the C and E models are 1 4 rack width units 1 6 SCHEMATICS 1 7 The modular power supplies covered in this manual are of similar design differing mainly in com ponent values rather than in circuit operation Hence 1 1 DC OUTPUT in general the information presented in the manual applies to all of the power supply models with any significant differences among the supplies described as applicable Thus the schematic diagrams at the rear of the manual depict groups of similar supplies with five NOMINAL VOLTAGE CURRENT MODEL Minimum Adj Span AT50 C 3V 0 5V 4V 0 5V 6V 0 5V 62010A 10V 0 5V 12V 0 60V 15V 0 75V 62015 24 x1 20V 28V 1 40V 48V 2 40V 18V 0 90V schematics provided to illustrate all 33 models Each 1 8 SPECIFICATIONS schematic of course identifies the supplies for which it applies and includes notes and table
39. the wire between the negative output terminal of the power supply and the vertical input of the scope and the grounded scope case Any ground current circulat ing in this loop as a result of the difference in potential between the two ground points causes an IR drop which is in series with the scope input This IR drop normally having a 60Hz line frequency fundamental plus any pickup on the unshielded leads interconnecting the power supply and scope appears on the face of the CRT The magnitude of this resulting signal can easily be much greater than the true ripple developed between the pius and minus output terminals of the power supply and can completely invalidate the measurement POWER SUPPLY CASE OSCILLOSCOPE CASE A INCORRECT METHOD GROUND CURRENT 10 PRODUCES 60 CYCLE DROP IN NEGATIVE LEAD WHICH ADDS TO THE POWER SUPPLY RIPPLE DISPLAYED ON SCOPE OSCILLOSCOPE CASE POWER SUPPLY CASE VERTICAL INPUT A CORRECT METHOD USING SINGLE ENDED SCOPE OUTPUT FLOATED TO BREAK GROUND CURRENT LOOP TWISTED PAIR REDUCES STRAY PICKUP ON SCOPE LEADS POWER SUPPLY CASE OSCILLOSCOPE CASE C CORRECT METHOD USING DIFFERENTIAL SCOPE WITH FLOATING INPUT GROUND CURRENT PATH IS BROKEN COMMON MODE REJECTION OF DIFFERENTIAL INPUT SCOPE iGNORES DIFFERENCE IN GROUND POTENTIAL OF POWER SUPPLY amp SCOPE SHIELDED TWO WIRE FURTHER REDUCES STRAY PICKUP ON SCOPE LEADS Figure 5 3 Rippie and Noise Test Setup 5 25 Th
40. troubleshooting procedures section Table 5 1 Test Equipment Required REQUIRED RECOMMENDED CHARACTERISTICS MODEL Digital Sensitivity 100uV full scale Measure DC voltages HP 3450A Voltmeter min input impedance calibration procedures 10 megohms min Variable Voltage Transformer Vary AC input Range 90 130Vac Equipped with voltmeter accurate within 1 Voit HP 140B pius 14008 plug in 1402A plug in for noise measurements Sensitivity 100 Differential input Display transient re sponse and ripple noise waveforms current limit adjust ment Oscilloscope Rate 60Hz 2usec See Figure 5 4 rise and fail time Repetitive Load Sw Measure transient response James G Biddle Lubri Tact Rheostat 411G23CS or 411685 5 Power supply load resistor Fixed re sistor or Rheostat Value See Paragraph 5 11 Tolerance 5 Resistive Load Simpson Portable Shunt 06704 Value See Paragraph 5 13 Accuracy 196 minimum Current Sampling Resistor Shunt Measure output current 5 1 5 6 PERFORMANCE TEST 5 7 following test can be used as an incoming inspection check and appropriate portions of the test can be repeated to check the operation of the instru ment after repairs The tests are performed using the nominal 120
41. wires is connected to the grounded input terminal of the oscilloscope When using shielded two wire it is essential for the shield to be con nected to ground at one end only to prevent ground current flowing through this shield from inducing a signal in the shielded leads 5 28 To verify that the oscilloscope 5 not displaying ripple that is induced in the leads or picked up from the grounds the scope lead should be shorted to the scope lead the power supply terminals The rippie value obtained when the leads are shorted should be subtracted from the actual ripple measurement 5 29 most cases the single ended scope method of Figure 5 3B will be adequate to eliminate non real com ponents of ripple so that a satisfactory measurement may be obtained However in more stubborn cases or if high frequency noise up to 20MHz must be measured it may be necessary to use a differential scope with floating input as shown Figure 5 3C If desired two single conductor shielded cables may be substituted in 5 ye place of the shielded two wire cable with equal success Because of its common mode rejection a differential ascilloscope displays only the difference in signal be tween its two vertical input terminals thus ignoring the effects of any common mode signal produced by the difference in the ac potential between the power supply case and scope case Before using a differential input scope in this man
42. 015C option 101 or 240V ac for 5081 4921 62018C thru 62028 option 102 5081 4922 62048C 62048 80096 Option 103 120V 240 Fuse 0 75A 250V Replaces F1 if it is wired for 240V ac Fuse 1A 250V Replaces F1 if it is wired for 240V ac Power Transformer shipped wired for 120 ac 62003C thru 62006C 2100 0063 62010C thru 62048C 2110 0001 E SERIES 62003E thru 62048E Main Power Supply Board Ci fxd elect 300uF 40V 34D307G040GJ2 0180 1805 1 C2 fxd mica 390pF 300V 0140 0200 1 C3 fxd mylar 0 47uF 25V dc 0160 0174 1 C12 1 62003E 62004E fxd tantalum 3 3uF 50V dc 0180 2141 62010E 62005E 62006 fxd tantalum 10 35V dc 1500105 9035 2 0180 0291 6 13 REF DESIG thru 620285 62048E C13 C14 C15 16 C18 C19 62003E thru 62006E 62010E thru 62028E 62048E CR1 2 CR11 14 CR15 Q1 Q2 62003E thru 62028E 62048E R1 R2 3 R4 R5 R6 62003E 62004E 62005 62006 62010E thru 62048E R8 62003E 62004E 62005E 62006E 62010E 62012 62015 62018 62024 62028 62048E R10 62003 62004 62010 62012 thru 62028 62048E R11 R12 R13 R15 62003E thru 62010E DESCRIPTION fxd tantalum 0 47uF 80V dc fxd mylar O1uF 200V dc fxd mica 10pF 300V dc fxd mylar 0 47uF 25V dc fxd mica 30pF 300V dc fxd mica 100pF 500V
43. 0811 1828 62010A thru 62018A fxd ww 0 25 10 3W Type CW2B 1 91637 0811 1829 62024A 62028A fxd ww 0 5 10 3W Type CW2B 1 91637 0811 1830 62048A fxd ww 1 0 5 3W 242 1805 56289 _ 0811 1732 62006C Not Used Jumper Installed 62010C fxd ww 0 25 1096 3W Type CW2B 1 91637 0811 1829 62012 thru 62018C 62024 620246 fxd ww 0 25 10 SW 2 91637 0811 1847 62024 62028 62028 620286 fxd ww 0 5 5W Type CW5 2 91637 0811 1848 62048 62048 fxd ww 1 10 5W Type 243E1R05 56289 0811 1340 62018E fxd ww 0 125 10 SW K46509 21740 0811 1846 620180 fxd ww 0 07 5 SW RS 5 78 68601 0811 3174 20486 fxd ww 0 5 10 5W CW5 2 91637 0811 1848 R17 62003A thru 62048A 62006 thru 62048C 62013 thru 62048E 62018G thru 62048G R45 See Main Supply for A Series 62006C thru 62048C 62010 thru 62048E 62010G thru 620480 Not Used fxd ww 2 4K 5 3W 0811 1807 2100 1758 2100 3254 4902 3104 Type CT 106 4 07716 28480 28480 Var ww 1K 5 TW Var ww 1800 5 1W Diode zener 5 62V 400mW 4 Table 2 Replaceable Parts Option 011 Crowbar Models 62003C thru 62005 62003E thru 62015 620036 thru 62015G uc MFR HP DESIG DESCRIPTION MFR PART NO CODE PART Option 011 Crowbar Board 1 fxd mylar 001uF 200Vdc 1
44. 083 62006E 6G fxd met film 2 37K 1 1 8W Type CEA 0 0698 3150 62010E 10G fxd met film 4 87K 1 1 8W Type CEA 0 0698 4444 62012 12G fxd met film 6 19K 1 1 8W Type CEA 0 0757 0290 62015 156 fxd met film 7 5K 1 1 8W Type CEA 0 0757 0440 R5 fxd met film 2K 1 1 8W 0 0757 0283 R6 7 fxd comp 10K 5 72W 1035 0686 1035 R8 fxd comp 51 5 AW 5105 0686 5105 5 Table 2 Replaceable Parts Continued REF MER HP DESIG DESCRIPTION MFR PART cope PART NO 3 3G 62004 4E 4G fxd ww 50 5 SW fxd ww 75 5 DW 0811 1854 0812 0097 24325005 243 7505 62005C Not Used 62005 5G fxd ww 100 3 5W 243 1015 0812 0018 62006 Not Used 62006G fxd ww 135 3 5W 6201GE thru 62015E 62010G thru 62015G R10 62003C 3 4 5 620036 Not Used fxd comp 510 5 AW fxd comp 270 5 5115 2715 0686 5115 0686 2715 62004 4E fxd comp 750 5 AW EB 7515 0686 7515 62005 Not Used 62005G fxd comp 630 5 6815 0686 6815 620066 fxd comp 1K 5 1025 0686 1025 62010 thru 62015 62010G thru 620156 R12 R17 62003C thru 62005C 62003E thru 62006 62003G thru 62015G R18 62003C thru 62005C 62003 thru 62006 520036 thru
45. 1853 0037 0686 1525 0698 5087 0757 0420 0811 1978 0811 1810 0811 1812 0811 0960 0811 1816 0811 3187 0811 3192 0811 3195 0811 3193 0811 3194 0811 3186 0811 3196 0811 3190 0811 3188 0811 3191 0811 3197 0686 4315 0686 4715 0686 1025 0686 2025 0813 0001 0686 7525 0686 5615 0811 3175 x P NA 62012 thru 62018E 62024E 62028E 62048E R17 62003E 62006E 62010E 62004 62018 62005E 62012E 62015E 62024E 62028E 62048E R18 R19 62003E 62004E 62005 62006E 62010 62012E 62015E 62018E 62024E 62028E 62048E R20 62003E 62004E 62005E 62024E 62006E 62010E 62028E 62012E 62015E 62018E 62048E R21 R22 R23 R25 R26 827 62003 62004 62006E thru 62012E 62005E 62015E thru 62028E 62048E R28 R29 62003E 62004E 62005E fxd met fxd met fxd met fxd met fxd met fxd met fxd met fxd met fxd DESCRIPTION fxd ww 05 5 10W fxd ww 07 5 5W fxd ww 125 10 5W fxd ww 6 8 5 2W fxd ww 2 7 5 2W fxd ww 3 9 5 2W fxd ww 5 3W fxd ww 7 5 5 2W fxd ww 5 6 5 2W var ww 100 20 fxd ww 10 5 3W fxd ww 22 5 2W fxd ww 25 5 5W fxd ww 50 5 5W fxd ww 75 5 5W fxd ww 135 5 5W fxd ww 200 5 5W f
46. 1K 1 1 8W Type CEA 0 0757 0430 62048A 48C 48E 48G film 2 37 1 1 8W Type CEA T 0 0698 3150 R4 1 62003A fxd met film 1 21K 1 1 8W Type CEA 0 0757 0274 62004 fxd met film 1 62K 1 1 8W Type CEA 0 0757 0428 62005A fxd met film 1 96 1 1 8W 0698 0083 62006A 6 fxd met film 2 37K 1 1 8W Type CEA 0 0698 3150 62010 10C fxd met film 4 87K 1 1 8W Type CEA 0 0698 4444 62012A 12C fxd met film 6 19K 1 1 8W Type CEA 0 0757 0290 62015A 15C fxd met film 7 5K 1 1 8W Type CEA T 0 0757 0440 62018 18 18 186 met 9 31K 1 1 8W Type CEA T 0 0698 0064 62024A 24C 24E 24G fxd met film 13 3K 1 1 8W Type CEA T 0 0757 0289 62028A 28C 28E 28G fxd met film 16 2K 1 1 8W Type CEA T 0 0757 0447 62048A 48C 48E 48G fxd met film 28 7K 1 1 8W Type CEA T 0 0698 3449 85 fxd met film 2K 1 1 8W Type CEA 0 0757 0283 86 7 fxd comp 10K 5 W 2 EB 1035 0686 1035 R8 fxd comp 51 5 1 EB 5105 0686 5105 A 3 Table 1 Replaceable Parts Continued REF HP DESIG DESCRIPTION MFR PART NO CODE PART NO 89 62003 fxd ww 100 5 3W Type 242E1015 56289 0813 0050 62004A fxd ww 135 5 3W Type 242E 56289 0812 0112 62005A thru 62048A 62006 thru 62048C 62018E thru 62048E 62018G thru 62048G Not Used R13 62003 thru 62006A fxd ww 0 125 10 3W Type CW2B 1 91637
47. 20 Line Regulation Definition The change AE our in the static value of DC output voltage resuiting from a change in AC input voltage over the specified range from low line usually 104 Volts to high line usually 127 Volts or from high line to low line 5 21 To test the line regulation proceed as follows a Connect variable auto transformer between input power source and power supply power input terminals b Connect load resistance and digital voltmeter across output of supply c Adjust variable auto transformer for low line input d Turn on setup Read and record output volt age on digital voltmeter e Adjust variable auto transformer for high line input Reading on digital voltmeter shouid not vary from reading recorded in step d by more than 0 01 or 1mV whichever is greater 5 22 Ripple and Noise Definition The residual AC voltage which is superimposed on the DC output of a regulated power supply Ripple and noise may be specified and measured in terms of its RMS peak to peak value 5 23 Ripple and noise measurement can be made at any input AC line voltage combined with any DC out put voltage and load current within rating 5 24 Figure 5 3A shows an incorrect method of mea suring p p ripple Note that a continuous ground loop exists from the third wire of the input power cord of the supply to the third wire of the input power cord of the oscilloscope via the grounded power supply case
48. 27 15 0686 1005 0698 5479 0686 1025 0698 3909 0764 0041 0698 3614 0812 0097 0811 2138 0811 1217 0811 1204 0764 0024 0811 1860 0811 1804 0686 7505 0811 1555 0811 1801 0811 0010 0811 1802 0811 1805 0811 1806 0811 1812 0686 1015 1820 0223 1902 0064 1902 1221 0160 0970 0180 2522 0180 2523 0180 2518 DESCRIPTION MFR PART NO DESIG C11 62003C thru 62010C 62012 thru 62018 62024C thru 62048C F1 62003C thru 62006C 62010C thru 62048C Q4 R7 62003C thru 62006C 62010C thru 62048C T1 62003C thru 62006C 62010 thru 62015C 62018C thru 62028C 62048C TB1 1 U4 62003C thru 62024C 62028 62048C fxd elect 3000uF 100V dc fxd elect 3000uF 40V dc fxd elect 1600 85V dc fxd elect 1000uF 100V dc Fuse 1 5A 250V Fuse 2A 250V Power NPN S1 312015 312002 Voitage Adjust var ww 2700 5 2W var ww 1800 5 2W Power Transformer Power Transformer Power Transformer Power Transformer Terminal Block Rear 7 Termina Thermal Switch open 193 5 close 168 8 F Diode Assembly Integrated 1N4436 T F Circuit Not Used Mechanical Cover Front Top 62003 62004 62005 62006 62010 62012 62015 62018C 62024C 62028C 62048C Cover Bottom Rear 62003 thru 62006C 62010C thru 62048C Side Panel Right Side Panel Left Snap Bushing Left
49. 50V Power Transformer wired for 220V ac for option 101 or 240V ac for option 102 Option 103 120V ac 240V ac Fuse 1 5A 250 replaces F1 of T1 wired for 240V ac Fuse 2 0A 250V replaces F1 of T1 wired for 240Vac Power Transformer wired for 120V ac TO MER PART NO MFR HP CODE PART NO 0360 1784 4040 0948 5020 8404 0340 0181 757 0 3 6040 0625 1400 0084 1400 0090 5000 9351 500 9348 5000 9355 0380 0720 342014 901 129 9220 1415 2100 0043 2100 0262 4002307 1u uoduioo sanas V8v029 SISSYH2 NO q31v201 GN AHD Z NO 0319201 521 SALON 8 029 Vv2029 V81029 VSI029 72102901029 0360 LON 99 15 951 228 98069 NO 8350 LON 20 8 029 NO 0350 LON 812 8 029 NO 44315 VSI 823 1251029 7221029 201029 0350 LON 98 SISSVH2 NO 8317207 4H 112 62 Z 031201 2 1 SALON 1 50149406 59 95 5 389029 282029 272029 281029 5155 2 NO 9349201 vn 350 221029 290029 NO QISA LON 982682 1 301029 390029 280029 381029 390029 YI EH A ISSN Tu ds 7 292 22
50. 6 1325 0686 2715 0686 5525 0686 0515 0686 1005 0686 1205 0686 7525 0811 1761 0811 1718 0811 1557 62006 62010 62012 62015E 62018E 62024E 62028 62048 R30 R31 62003 thru 62006E 62010E 62012E 62015E 62018 62024E 62028E 62048E R32 33 R34 36 62003E thru 62005 62006E thru 62012E 62015E thru 62024E 62028 62048 01 3 VR1 VR2 C4 C5 62003E thru 62028 62048E C9 62003E thru 62006E 62010E thru 62015E 62018E thru 62028E 62048E C11 62015E thru 62048E F1 62003E thru 62006E 62012E thru 62048E Q3 4 5 R7 62003E thru 62006E 62010E thru 62048E T1 62003E 62004E 62003E thru 62012E DESCRIPTION fxd ww 20 5 5W fxd ww 40 5 5W fxd ww 50 5 SW fxd ww 75 5 SW fxd ww 135 5 5W fxd ww 200 5 SW fxd ww 300 5 5W fxd ww 680 5 SW fxd comp 33 5 1 2W fxd ww 200 5 SW fxd ww 400 5 5W fxd ww 600 5 fxd ww 1k 5 SW fxd ww 5 5W fxd 100 5 1 2W fxd ww 0 18 5 10W fxd ww 0 33 5 SW fxd ww 0 5 5 fxd ww 0 6 5 10W fxd ww 1 5 SW Operational Amplifier Diode zener 7 5V 400mW Diode zener 6 2V 250mW Chassis Electrical fxd mylar 0 47uF 80V dc fxd mylar 0 47uF 80V de Not Used fxd elect 20 000uF 20V dc fxd elect 15 000uF 20V dc fxd elect 10 000uF
51. 6 Sensing protection resistors R32 and R33 pre vent the load from receiving full rectifier voltage if the connections between the output terminals and the sensing terminals S and S are removed inadvertently 4 37 Thermai switch TC1 opens if the heat sink tem perature exceeds a safe value With TC1 open the ac input path to the supply is broken shutting down the supply The switch automatically resets after the sup ply has cooled to a temperature below that at which it originally opened The opening and closing tempera tures for the switch are given in the individual parts list for each supply SECTION V MAINTENANCE 5 1 INTRODUCTION Paragraph 5 37 After troubleshooting and repair Paragraph 5 54 repeat the performance check to 5 2 Upon receipt of the power supply the perfor ensure that the fault has been properly corrected and mance check of Paragraph 5 6 can be made This that no other faults exist Before performing any main check is suitable for incoming inspection Section tenance checks turn on the power supply and allow a contains a quick but less comprehensive checkout half hour warm up procedure which can be used in lieu of the performance check if desired 54 TEST EQUIPMENT REQUIRED 5 3 fault is detected in the power supply while 5 5 Table 5 1 lists the test equipment required to making the performance check or during normai oper perform the various procedures described in this ation proceed to the
52. 620066 62010 thru 62015E 620106 thru 62015G R19 62003C thru 62005C 62003E thru 62006E 62010E thru 62015E 62003G 62010G thru 62015G 62004G thru 62006G R45 62003 thru 62005C Not Used fxd comp 10 5 12W 1005 0686 1005 Not Used fxd ww 2 4K 5 3W 0811 1807 Not Used Jumper Installed fxd ww 0 18 5 10W 0811 3222 Not Used fxd ww 0 33 596 10W fxd ww 0 25 596 10W RS 10 46 RS 10 46 0811 3177 0811 3716 fxd ww 0 18 5 10W fxd ww 0 07 5 5W RS 10 46 RS 5 78 0811 3222 0811 3174 62003E thru 62015 Var ww 1K 5 1W Type CT 106 4 2100 1758 62003G thru 62015G Var ww 1800 5 1W 2100 3254 T1 Pulse Transformer 9100 2160 VR1 Diode zener 5 62V 400mW 1902 3104 TS1 Temperature Switch 2110 0471 A 6 P O SEE TABLE P O MAIN TERMINAL POWER SUPPLY CROWBAR P C BOARD BOARD eit ees RIS 2 ME 23 UNREG FROM 185 REFERENCE SUPPLY 12 1 2 Rai Nee meee i K R RS ga 13K 10K 3W O che i VRI SEE TABLE i qum clc i 1 NOTE 2 1 5 m estt lm RIT 1 ee 3W i 1171 chante alee
53. 811 3196 62018C fxd ww 19 360 1 3W 0811 3190 62024C fxd ww 25 800 1 4W 0811 3188 62028 fxd ww 30 050 1 4W 0811 3191 62048 fxd ww 51 550 1 5W 0811 3197 R10 62003 62004C fxd comp 430 5 1 2W EB 4315 0686 4315 62005 fxd comp 1k 5 1 2W EB 1025 0686 1025 62006 thru 62012C fxd comp 2k 5 1 2W EB 2025 0686 2025 62015 fxd comp 2 4k 5 1 2W EB 2425 0686 2425 62018 fxd 4 3k 5 1 2W EB 4325 0686 4325 62024C fxd comp 4 7 5 1 2W EB 4725 0686 4725 62028C fxd comp 7 5k 5 1 2W 7525 0686 7525 62048 fxd comp 8 2k 5 1 2W EB 8225 0686 8225 R11 fxd ww 1k 5 3W 242E 1025 0813 0001 R12 fxd comp 7 5k 5 1 2W 7525 0686 7525 R13 fxd comp 560 5 1 2W EB 5615 0686 5615 R15 Current Sampling 62003C thru 62015C fxd ww 07 5 SW 0811 3174 62018 fxd ww 0 1 5 3W 0811 1827 62024 62028 fxd ww 0 125 5 3W Type CW2B 1 0811 1828 62048C fxd ww 0 25 10 Type CW2B 1 0811 1829 217 62003C thru 62006C fxd ww 3 3 5 2W Type BWH 0811 1672 62010C 62012C fxd ww 5 3W Type 242E3R05 0811 1224 62015C fxd ww 2 7 5 2W Type BWH 0811 1671 62018C 62028C fxd ww 4 3 5 2W Type BWH 0811 1760 62024C fxd ww 4 7 5 2W Type BWH 0811 1674 62048C fxd ww 15 5 3W 0811 1557 R18 var ww 100 20 Type 110
54. 82 282029 1060081 0350 AOS E _ sarol aea w AOP 524 021 62 552089 ____ 12 A2 622 06038 281029 loses 052 920191 251029 12100191 1900 m e 9350 Fal 921029 20 0062 106001 901029 06401 AGE 020 OF 1282 8 0 0217 2 VP2029 06018 1038 91029 05030 21029 701029 62 ois 39 X 09 61 agsn 104 ON gro Nee E A002 200 949 20S TAGON eau 28 ize m su Ora 612 202 eo vo 9809 BOVETOA oe 3 inaino SLNSNOdNCO ouv 3H9 1531 indino SO tO n 277 521035 382029 382029 2029 ov 5 XIdN3ddY 391029 381029 321029 301029 573000 IIO NOL 8 m vol He i ej EEL P OL 335 NETS en eee 3383 619 1 i dm aevi 6 AWO 389029 a m aneva ACOZ 239 335 33 5 435 t J
55. 92P10392 0160 0153 C2 fxd elect 1uF 50Vdc 30D105G0508A2 0180 0108 68 4 fxd mylar 022uF 200V 292P22392 PTS 0160 0162 CR1 CR2 Diode Si 250mW 200V 1901 0033 CR3 62003C 62004C 62003E thru 62005E 62003G thru 620066 62005C 62006E 62010G thru 62015G Diode Si 12A 100V 1 1200 1901 0002 Not Used Jumper Installed CR4 Diode Si 250mW 200V 1901 0033 CR6 SCR 2N3669 1884 0019 Q1 SS NPN Si 1854 0071 Q3 SS NPN Si 1854 0087 QA 62003C 62004C 62003E thru 62005E 620036 thru 620066 62005C 62006E 62010G thru 62015G R1 R2 62003C 62003E 620036 SS NPN Si 1854 0071 Not Used fxd ww 1 3K 5 3W 0811 1803 242 1325 fxd met film 909 1 1 8W Type CEA 0 0757 0422 62004C 5 62004E 5E 62004G 5G fxd met film 1K 1 1 8W Type CEA 0 0757 0280 62006E 6G fxd met film 1 1K 1 1 8W Type CEA T 0 0757 0424 62010E 10G fxd met film 1 62K 1 1 8W Type CEA 0 0757 0428 62012 126 fxd met film 1 78K 1 1 8W Type CEA 0 0757 0278 62015E 15G fxd met film 1 82K 1 1 8W Type CEA T 0 0757 0429 R4 62003C 3E 36 fxd met film 1 21K 1 1 8W 0757 0274 Type CEA 1 0 62004C 4E 46 fxd met film 1 62K 1 1 8W Type CEA T 0 0757 0428 62005C 5 5G fxd met film 1 96K 1 1 8W Type CEA T 0 0698 0
56. Co West Nyack Burroughs Corp Electronic Components Div Plainfield U S Radium Corp Morristown Yardeny Laboratories Inc New York Arco Electronics Inc Great Neck TRW Capacitor Div Ogallala RCA Corp Electronic Components Harrison N f Rummel Fibre Newark N J Marco amp Oak Industries a Div of Oak Electro netics Corp Anaheim Calif Philco Corp Lansdale Div Lansdale Pa Stockwell Rubber Co Inc Philadelphia Pa Tower Olschan Corp Bridgeport Conn Cutler Hammer Inc Power Distribution and Controi Div Lincoln Plant Lincoln Litton Prec sion Products Inc USECO Div Litton Industries Van Nuys Gulton Industries Inc Metuchen N IT United Car Inc Chicago Ill Miller Dial and Nameplate EL Monte Calif Chicago Attleboro Mass Dale Electronics Inc Columbus Neb Eico Corp Willow Grove Pa Honeywell Inc Div Micro Switch reeport Ill Whitso Inc Schiller Pk Sylvania Electric Prod Inc Semi conductor Prod Div Woburn Mass Essex Wire Corp Stemco Controls Div Radio Materials Co Augat Inc Mans ield Ohio Raytheon Components Div Ind Components Oper Wagner Electric Corp Tung S ol Div Southco Inc Leecrait Mfg Co Inc Methode Mig Roling Meadows Il Bendix Corp Microwave Devices Div Weckesser Co Inc Amphenol Corp Amphenol Controls Div Janesville Wis Industrial Retaining Ring Irvi
57. ER CURRENT SAMPLING RE Si STOR CURRENT LIMIT ADJUST CONSTANT VOLTAGE COMPARISON AMPLIFIER VOLTAGE ADJUST Figure 4 1 Typical Modutar Power Supply Simplified Schematic the voltage comparison amplifier during constant volt age operation or the current limiting amplifier during current limit operation 4 5 reference supply provides regulated bias voitages which are used by the internal circuitry throughout the main power supply 4 6 DETAILED DESCRIPTION 4 7 The following paragraphs describe in detailed terms the operation of each of the supply s major circuits Throughout this discussion refer to both the simplified schematic of Figure 4 1 and the appropriate schematic diagram at the rear of the manual 4 8 Feedback Loop 4 9 The voltage comparison amplifier together with the driver and series regulator comprises the constant voltage feedback loop This feedback loop maintains a constant output voltage during normal constant voltage operation To accomplish this the voltage comparison amplifier continuously monitors the out put voltage of the supply it detects instantaneous changes in the output and applies an amplified error signal to the series regulator via the driver which is of the correct phase and amplitude to counteract the change 4 10 The feedback loop also prevents the output current from exceeding a preset current limit value Current limiting operati
58. F4 2100 0281 R19 62003C fxd met oxide 22 5 2W Type C 425 0698 3609 62004C fxd met oxide 30 5 2W 0764 0041 62005C fxd met oxide 43 5 2W Type C 425 0698 3614 62006C fxd met oxide 56 596 2W Type C 425 0764 0013 62010C fxd met oxide 100 5 2W Type C 425 0698 3620 62012C fxd ww 135 596 3W Type 242E 0698 3609 62015C fxd met oxide 180 5 2W Type C 425 0698 3626 62018C fxd met oxide 270 596 2W Type C 425 0698 3629 62024C fxd ww 390 5 3W Type BWH 0811 1799 62028C fxd ww 490 5 3W 242E 4915 0811 1801 62048C fxd ww 1 4k 5 242E 1425 0811 1804 R20 62003C thru 62006C fxd met film 139 1 1 8W Type CEA T 0 0698 4099 62015C 62048C 62010 62012C 62018C 62024C fxd met film 110 1 1 8W fxd met film 115 1 1 8W fxd met film 150 1 1 8W Type CEA 0 Type CEA 0 Type CEA T 0 0757 0402 0698 4406 0757 0284 62028 821 2003 2004 62005 62010C 62018C 62028C 62006 62012 62015 62024C 62048C R22 R23 R25 R26 R27 62003C 62004C 62024 thru 62048C 62005C thru 62018C R28 R29 62003C 62004C 62005C 62006C 62010C 62012C 62015C 62018 62024 62028 62048 R30 R31 62003C thru 62006C 62010 62012 62015C 62018C 62024C 62028C 62048C R32 33 U1 3 VR1 VR2 C4 C9 62003C thru 62006C 62010C thru 62015C 62018C thru 62024C REF DESCRIPTION DESIG fxd met film 121 196 1
59. LLVOO Nid 310N 335 290029 250029 STAGOW Ni bn 9 DI 51 H3ldl1O3H SM3IA 401 YEOOZ9 STAGOW Ni 530010 31350510 40 SLSISNOD YALIYA 6 on en zn in NOHLVH3dO BOVLIOA INVISNOO Ni SONIQY3H TW WOLFE TVOldAl SONIOVBY d S OL 03083843438 S39VI IOA 11 OVAGH 8 iN31VAInO3 922 7300W dH SNOLLIQNOO 9NIAQ1104 HIONA O3H SV3A S39V110A LNIOd 1531 8 ddAl HOVE 304 NMOHS SO LVW3HOS 3iVHVd3S 104 401 AOL 0138 JOVETOA MOT TIY 504 G d OL Q3193NNOO SiM 7 99 01 83182184 ASIMYAHLO 55374 SOVHVJONOIN NI SuOllOVdVO 9 OL G3AVOIGNI 3SIWH3H1O SSTINN 1F SHOLSISSY TIY 3SIMUBHLO SSI INN 9 T SHOISIS3M TY NI 3uY 680161538 TV 5 ym 48 HlVd MOVHO334 S310N30 b CE 8 HlVd X0v80334 ZOVIIOA LNVISNOO 8310 30 SIN3NOdWOO SISSVHO S310N3d 2 MOTIE NMOHS SHOLSISNVMI SNOTLYDOT Nid 01 3SIAM3HIO SS37Nn ONVOS 2d NO GALVOOT SIN3NOdWOO 1 310N Mi A9 sre 090029 9 osop Xu mi ASI ASO SS 250029 008 89
60. N FRED At iD 11 9 MO Y XION3ddV PONO 10 NOlidO Ol A 70006 INTO III rr NOi VM3dO JOVLTIOA LNVLSNGO Ni N33V1 SONIGVBY TIY 3 TwOidAL 38V SONIGVSY G dais S OL DBONANSAISU SSOVINOA TW o ANANI SVASH 8 INS TYAINOA MO 2 TIGON dH V SNOLLIGNOO GSHNSVAW S39V110A 1NIOd 1531 8 HOYE 304 NMOHS SOLLVNSHOS 31949435 53114405 3A08V 39V110A HJHOIH TIV HOS AH OL 531714905 AOL MOTHS MODE NMOHS SAC ees TO TIY 4 094 AT Ol O2103NNOO Si IM 2 GALVIN 3SIMYSHLO SSTINN SOVEVIONOIN IHY SHOlIOVdVO TIV 9 Q31VO10N ASIMMBHLO 663180 5561 T SHOISIS3H TIY GRLVDIGN SSIMMBHLO SS33Nn AGF SHOLSIS3H 11V 8 01 8 14 SWHO Nf SMOISIS3M TIY S 1 S310N30 2 2 22989333 39V110A LNVISNOO 5310830 SIN3NOdWOO GALNNOW SISSVHO S310N304 2 Q31V010NI MOTIE NMOHS SHOISISNVHI SNOILYJOT Nid 6 3SIMHBH1O SS3INN 24 NO 9319001 SIN3NOdWOO TIY I SALON APPENDIX OPTION 011 Overvoltage Protection Crowbar INTRODUCTION This option is installed and tested at the factory and applies to the following Hewlett Packard modular power
61. PONSE PROBABLE CAUSE Low output voltage Check fuse F1 a Fuse blown Internal short proceed to Paragraph 5 43 less than 1 5V b Fuse good Series regulator loop or reference supply defective proceed to Table 5 3 High output voltage above maximum rating Series regulator loop defective proceed to Table 5 4 a Refer to paragraph 5 24 for ground loop information b setup is free of ground loops reference supply or main rectifier may be defective proceed to Paragraph 5 47 c Supply may be operating too close to current limit cross over point read Paragraph 5 10 then Paragraph 5 45 High ripple Check operating setup for ground loops Will not current limit OR gate diode CR14 open or current limit amplifier U3 defective Check reference voltages 12 4V 6 2V and 7 5V Poor load or line regulation a Voltages incorrect beyond 10 tolerance Check reference supply as indicated in Table 5 3 Steps 2 and 3 b Voltages correct within 510 Supply may be current limiting read Paragraph 5 10 a Higher frequency oscillations above 5 2 can be caused by an open C13 C14 or C18 b A defective output capacitor C11 or feedback capacitor C19 can cause oscillations in one of many frequency ranges Oscillations occuring only in the current limiting mode can be caused by a
62. S Operating 0 to 50 C ambient Output current de rated linearly for temperatures greater than 50 with 50 of maximum output current at 71 C ambient Storage 55 C to 85 Cooling Convection cooled MOUNTING Three mounting surfaces provided for mounting in the upright position For mounting orientations other than upright adequate cooling is required See Section TEMPERATURE COEFFICIENT Less than 0 01 output voltage change per degree Centigrade over the operating range from 0 to 50 C after 30 minutes warmup THERMAL PROTECTION DIMENSIONS Heat sink mounted thermostat opens ac line if supply overheats due to high ambient temperature Thermostat automatically closes reset when temper A suffix models 1 91 W x 5 03 H x 1225 D 48 mm W x 128mm H ature cools to safe operating level 311mm D amp E suffix models 3 94 W x 5 03 STABILITY Less than 0 1 total drift for 8 hours after an initial 100 mm W x 128mm H x warm up time of 30 minutes at constant ambient con stant line voltage and constant 311mm D WEIGHT net shipping TRANSIENT RECOVERY TIME Less than 50 usec for output recovery to within 15 mV of nominal output voltage following a ioad change from full to half load or vice versa suffix Models 6 bs 2 7 kg 8 165 3 6 kg suffix Models 10 105 4 5 kg 12 ibs 5 4 kg E suffix Models 13 Ibs 5 9 kg 16 Ibs 7
63. SAOHO 5 bol 0190 2 AOE YE T AZ woud ISL ta fea WHY NOSIMVIWO2 V i 5 8 3961704 ANYLSNOI GESELL pi fo gt XIGN3ddV 335 3y 5 tO HO 29 2220 NOLO wj OL iN3usno 918 0 40151538 Led 5 338 1 inguune oov 335 SEO 3933 0287 Sig idi ord o pen igi 913 zzy mmm rran nm mmm 390029 uod 5 LON 8 NO V XION3HdV A HO NOI1dO 19 x 94 APZI gia ASZ 1 53 190 iM i 2 4 TAWE 8214 LIWII 4 02 Ab i lt Z iL 8 HO v XIQN3ddV BO IIO NOLLdO 01 S3uND 5 FORA Ff mmm MM 401 NOiLVH3dO BOVLIOA 1 NI N DIVL SONIOV S TIY 3 WOLF AVDIdAL Juv SONIGV3Y St OL 9394353433 S39VLIOA TW 9 8 UNF WAINOS HO 9226 13G0W dH SNOILIQNOO SNIMOTIOS O340SV3W SBOVLIOA LNIOd 1531 8 HOV3 304 NMOHS JY SOLLVIN3HOS 1 435 S3t iadns AOI TIV BO AH OL ONY 53114405 AOL MO138 ASVLICA TIY HO AT OL Si IM 4
64. Side Panel Jumper Terminal Block Cover Terminal Block 6 12 MFR CODE 0180 2517 0180 1899 0180 1986 0180 1887 2110 0043 2110 0002 1854 0563 2100 3255 2100 3254 5080 7196 5080 7197 5080 7198 62048 80092 0360 1766 3103 0017 1906 0041 5060 9639 5060 9640 5020 8092 5020 8093 0400 0064 0360 1784 4040 0948 DESCRIPTION To MFR PART DESIG HP Ips CODE PART 5020 8404 0340 0181 Heat Sink 04 Insulator Mica 04 Shoulder Washer Insulator 04 Fuseholder F1 Insulator Fuseholder Heat Sink Transistor Q3 Bracket Rear Chassis Bracket Voltage Adjust Bracket Capacitor 1 3 8 Bracket Capacitor 2 Spacer 8 32 x 3 4 T1 Plug Crowbar Adjust Hole Packing Carton Floater Pad Packing Carton Fioater Pad Packing Carton Floater Pad Packing Carton 757 TO 3 1400 0084 1400 0090 1205 0033 5000 9351 5000 9348 5000 9352 5000 9355 0380 0720 342014 901 129 NF 207 9211 1198 9220 1412 9220 1414 9220 1415 4 NM MO m e 3 e Option 101 220V Option 102 240V ac F1 62003C thru 62006C 62010C thru 62048C 2110 0063 2110 0001 Fuse 0 75A 250V Fuse 1A 250V T1 Power Transformer 62003C thru 62006C wired for 220V ac for 5081 4920 62010C thru 62
65. U 620150 A JUMPER IS INSTALLED IN PLACE CR3 AND THE OTHER COMPONENTS REMOVED CONNECTION FROM CROWBAR TO NEGATIVE SIDE OF C9 4 ALL RESISTORS OHMS 2 RESISTORS 5 ALL 8W RESISTORS 1 UNLESS OTHERWISE INDICATED 5 ALL CAPACITORS IN MICROFARADS UNLESS OTHERWISE INDICATED amp TEMPERATURE SWITCH TSi IS SHOWN BELOW THE POWER LEADS MUST BE CONNECTED AS SHOWN READ DESCRIPTION AND REPLACEMENT PROCEDURES ON PAGE A 2 eer CERAMIC A W INSULATOR 2 HEATER LEADS qi RECTIFIER N e Y POWER LEADS Figure A 2 Option 011 Crowbar Schematic Models 62003C thru 62005C 62003E thru 62015E 62003G thru 620156
66. V AC 60Hz input power for the unit if the correct result is not obtained for a particular check proceed to troubleshooting Paragraph 5 37 5 8 Measurement Techniques 5 9 Connecting Monitoring Device For the following Constant Voltage measurements the measuring device must be connected across the rear sensing terminals of the supply in order to achieve valid indications A mea surement made across the load includes the impedance of the leads to the load and such lead lengths can easily have an impedance that is greater than the supply im pedance thus invalidating the measurement To avoid mutual coupling effects each monitoring device must be connected directly to the sensing terminals by separate pairs of leads 5 10 Avoid Current Limiting When measuring the constant voitage performance specifications the current limit point should be set at least 3 above the maxi mum output current which the supply will draw since the onset of current limiting action will cause a drop in output voltage increased ripple and other changes not properly ascribed to the constant voltage operation of the supply The current limit potentiometer is fac tory set to its proper value when the supply is provid ing nominal output voltage If an output voltage other than nominal is selected read Paragraph 3 8 and then proceed to the current limit adjustment procedure Paragraph 5 72 5 11 Selecting A Load Resistor Constant voltage specifications
67. West Concord Mass LTV Electrosystems Inc Memcor Com ponents Operations Huntington Ind Dynacool Mfg Co Inc Saugerties National Semiconductor Corp Santa Clara Calif Palo Alto Calif Kenilworth Hewlett Packard Co Heyman Mfg Co IMC Magnetics Corp New Hampshire Div Rochester SAE Advance Packaging Inc Santa Ana Calif Ramona Calif Owensboro Ky Chicago Hl Budwig Mfg Co Tube Dept Lectrohm Inc Mallory amp Inc Indianapolis Muter Co Chicago 11 New Departure Hyatt Bearings Div General Motors Corp Sandusky Ohio Ohmite Manufacturing Co Skokie Hl Penn Engr and Mfg Corp Doylestown Pa Polaroid Corp Cambridge Mass Raytheon Co Lexington Mass Simpson Electric Div of American Gage and Machine Co Chicago Ill Sprague Electric Co North Adams Mass Superior Electric Co Bristol Conn Syntron Div of Corp Homer City Pa Philadelphia Pa New York N Y Thomas and Betts Co Union Carbide Corp Ward Leonard Electric Co Mt Vernon 6 3 71700 71707 71744 71785 71984 72136 72619 72699 72765 72962 72982 73096 73138 73168 73293 73445 73506 73559 73734 74193 74545 74868 74970 75042 75183 75376 75382 75915 76381 76385 76487 76493 Code List of Manufacturers Continued MANUFACTURER ADDRESS Amperite Co Inc Beemer Engrg Union City
68. a 208 254 Vac 48 63 Hz single phase input 1 3 120 240 Vac single phase in put Supply is normally shipped with a 120 Vac nominal transformer Option 103 replaces this transformer with a 120 240 Vac nominal multi tap transformer and aliows field changeable operation from 104 127 Vac or 208 254 Vac 48 63 Hz single phase input System Control This option allows the user to control the supply s over voltage protection crowbar circuit as well as output voltage The 104 option includes the same internal ad justable overvoltage protection crow bar as provided with the 011 option In addition the 104 option crowbar includes external from a rear term inal strip pulse control capability that allows the crowbar to be either externally triggered or which provides an output pulse to indicate that the crowbar has triggered The crowbar pulse specifications are input Trigger Pulse Voltage 8 15 V Width between 90 point at leading edge and 10 point at falling edge 5 usec 2 msec Output Pulse Voltage 2 12 V Width between 9096 point at leading edge and 10 point _ at falling edge 2 20 usec Load Impedance 1 min In addition to the crowbar trigger external access the 104 option also includes access from a rear terminal strip to the summing point of the supply to enable the dc output volt age to be remotely programmed to zero 15 mVdc max with a contact
69. ading on voltmeter is equivalent to current limit point d If current limit of Step c is not 104 196 of maximum current rating change current limit by first increasing e Next use insulated tool to increase current limit setting turn R18 clockwise f Again decrease R until voltmeter reads value equivalent to 104 1 of maximum output current 9 Decrease current limit setting R18 cew until supply current limits ripple increases on scope OSCILLOSCOPE POWER SUPPLY DIGITAL VOLTME TER RHEOSTAT Figure 5 6 Current Limit Adjustment Setup Table 5 7 Semiconductor Replacement Data EXACT FIRST CHARACTERISTICS soi aida COMMERCIAL SECOND REPLACEMENT ALTERNATE BVCEO 18V 3mA 0 5W GAW 8495 ft 1MHz U1 U2 U3 1820 0223 LM301AH Nat Semi Q1 BVCEO 175V TW GAW 25 min ft 10MHz 1854 0095 40346 RCA 2N3440 2N3439 2N3634 2N3636 BVCEO 100V 1 1W GAW 50 min ft 100MHz 1853 0037 1853 0099 NUS 2N2907 A 2N3906 MM2258 1854 0271 2N3500 1854 0244 2N1711A 2N2102A 1906 0039 Semtech 1906 0041 IN4436 T F 05 SCDAI 1906 0040 Semtech Rect Discrete Diodes 7 5V 0 4W 1902 0064 1N52368 1N5236A 6 2 0 25W 1902 1221 5 1 825 81 2 3 4 5 6 PIV 200V 1 1 1901 0327 1 5059 p ex CR3 4 5 6 PIV 200V 1 1
70. ailure where the supply cannot be turned down automatically i OPERATION The crowbar can be set to trip anywhere in the range from 0 5Vdc above the minimum rated output voltage of the supply to 2V above the maximum rated output voltage For example the 62003A crowbar trip point can be set anye where between 3 0Vdc to 5 5Vde NOTE 0 75V below the crowbar trip voltage setting To prevent transients from falsely tripping Resetting Crowbar the crowbar the trip voltage should be set higher than the power supply output by at lf the crowbar trips during normal operation supply least 0 75Vde output goes to near zero remove the input power to the supply and then disconnect any load from the power sup ply Re apply input power and determine if the crowbar To set the crowbar trip voltage perform the following pro again trips 1 it does there a problem in the power sup cedures ply Check the line fuse and the temperature switch TS1 if provided for open If either of these devices are open refer to the operating and service manual for troubleshoot NOTE ing procedures that can be used to isolate the cause of the overvoltage condition the supply does not crowbar when Do not connect a load to the supply when the load is removed check the load circuit or the tr p point setting the crowbar trip voltage setting Temperature Switch 1 Turn the CROWBAR ADJUST screwdriver con trol fully clockwise trip voltage
71. amplifier stage U3 and associated components Stage U3 is similar in appearance and operation to the constant voltage comparison amplifer U2 4 26 The current limit comparison amplifier effect ively monitors the output current of the supply by monitoring the drop across current sampling resis tor R15 The voltage drop across R15 is compared with a reference valtage established by the setting of current limit potentiometer R18 During constant voltage operation the output of U3 is not positive enough to forward bias OR gate diode CR14 However if the out put current increases to approximately 104 of the rated value the input to pin 2 of U3 is driven momen tarily less positive 1f this occurs a positive going out put signal from U3 forward biases CR14 and reverse biases CR13 This feedback signal then decreases the conduction of the series regulator 4 27 The current limiting circuit contains a current cutback feature which protects the series regulating transistor s against excessive overloads As the load resistance decreases the output current is cut back linearly from the initial current limit point to approxi mately 1096 of the rated current under short circuit conditions see Figure 4 2 Cutback action is made possible by R18 and R19 which are connected across the output of the supply the load resistance de creases after the initial current limiting point the resultant drop in output voltage causes a
72. antity RS for complete maintenance of one instrument during one year of isolated service Parts not identified by a reference desig nator are listed at the end of Table 6 4 under chanical and or Miscellaneous The former consists of parts belonging to and grouped by individual as semblies the latter consists of all parts not im mediately associated with an assembly 6 3 ORDERING INFORMATION 6 4 To order replacement part address order or inquiry to your local Hewlett Packard sales office see lists at rear of this manual for addresses Specify the following information for each part Model complete serial number and any Option or special modification 0 numbers of the instrument Hewlett Packard part number circuit reference des ignator and description To order a part not listed in Table 6 4 give a complete description of the part its function and its location Table 6 1 Reference Designators assembly miscellaneous blower fan electronic part capacitor fuse Circuit breaker jack jumper diode relay device signal inductor ing meter Table 6 1 A 00 co Table 6 2 plug transistor resistor switch transformer terminal block thermal switch ampere alternating current assembly board bracket degree Centigrade card coefficient composition cathode ray tube center tapped direct c
73. bed in Section V so that the current limit point is moved to 104 1 at the upper voltage limit rather than at nominal voltage A SUPPLIES BELOW 10V OUTPUT 40 5 LLLI ADJ NOMINAL RANGE Tr mm TYPICAL CURRENT CUTBACK TEE OUTPUT 95 113 B SUPPLIES 10 AND ABOVE 359 ak m NOMINAL 5 ADJ RANGE OUTPUT TYPICAL CURRENT CAUTION La see NOTE BELOW 99 109 104 tr out CAUTION OPERATION AT OUTPUT CURRENTS ABOVE 105 OF RATING CAN CAUSE EXCESSIVE INTERNAL HEATING AND POSSIBLE DAMAGE TO THE SUPPLY Figure 3 2 Typical Current Limiting Characteristics 3 2 3 9 Connecting Load 3 10 Each load should be connected to the proper supply output terminals using separate pairs of con necting wires This will minimize mutual coupling effects between loads and will retain full advantage of the low output impedance of the power supply Each pair of connecting wires should be as short as possible and twisted or shielded to reduce noise pickup If a shield is used connect one end to power supply ground terminal and leave the other end unconnected 3 11 tf load considerations require that the output power distribution terminals be remotely located from the power supply then the power suppiy output term inals should be connected to the
74. ct ohmmeter across reference supply filter capacitor test points B and Reading should be at least 5 000 ohms If less check C1 CR1 or shows the recommended method of isolating the CR2 for short trouble to either the supply itself or the crowbar 4 Connect ohmmeter across power transformer Failures within the main supply are covered in Table ACC terminal and test point F Reading should be 5 5 while crowbar problems are referenced to a separ at least 10 Megohms 1f it is less check T1 for shorts ate table or leakage 5 If the previous steps prove satisfactory 5 47 Excessive Ripple Troubleshooting if a trouble was found and corrected repiace line fuse and reconnect input power 5 48 excessive ripple or noise is encountered the frequency of the ripple should be determined as the 5 45 Current Limit Troubleshooting first step in isolating the trouble Ripple or spikes occuring at the line or twice the line frequency 5 46 Improper activation of the current limit protec usually caused by problems in the reference supply tion circuit can be caused by one of two conditions the main rectifier area of the supply Refer to the next 1 a failure within the supply or 2 activation of the paragraph if this problem occurs Higher frequency optional crowbar SCR option 011 or 104 Table 5 5 noise hash occurring at a fixed frequency are Table 5 2 Initial Troubleshooting SYMPTOM CHECK RES
75. cu 335 i i isnrdv 39 LI0A i ME 13 2 i 335 HYSMOHS NOLLdO WOH 4 20 TINY NOSHVAWOO FILON LNVLSNOD gm HO XiqN3ddV 27854 335 HYHAOHO p 01 1LN38302 A TEY 335 30151538 TWN 33 335 ayz gid AGE 974 9 4 0 815 244 B 80 v BOE HO NOLLGOQ WOH 371971 335 129 EN TOWY LIMIT 2 399902 77 8 XIONSddY ee HVOMONO 974 539 435 601 HO 110 NOLLdO 01 892 1 335 623 318 1 evi MOTES SLUVHO 335 Q3 123NNOO WL m 31891 339 po Fins 6 310N 33S 13904 340 NO 2 30010 AF 21 e 880 XIQN3ddV 2 NOLIdO Oh mmt mmn am CS3HN0 ALS A DON Fe 3 4349 ea A AAAA oaoa 1282055 582029 281029 81929 1029 21029 01029 72000 AR 812009 2 303 ON 491 HO 513809 80109 HIM SBLYSIGNS X 310N 3 2 RRS 31874 335 Id aayos O d SMAIA 401 9H2
76. d plated polarity dot on the board The other power E c Turn on the supply and set power supply lead must be connected to current sampling res stor R15 1 output to desired crowbar trip voltage The heater leads are not polarity dependent and can be 4 connected any manner When soldering in any of the temperature switch leads apply heat to the leads for as short a period as possible as it requires only 115 C for the switch to open The power leads are particularly susceptible to Do not set output voltage more than 2V heat and the caution note below must be observed above the maximum output voltage rat 2 ing of the supply CAUTION CAUTION 4 Slowly turn the CROWBAR ADJUST counterclock wise until the crowbar trips output falis towards O volt 5 The crowbar remains activated and the output When soldering in the power leads of a shorted until the supply is turned off To reset the crowbar temperature switch connect an alligator turn the supply off Before turning the supply back on re clip to each lead to help dissipate heat move the shunt resistor installed in step if necessary and The switch will open at approximately turn VOLTAGE ADJUST to minimum Turn the supply 115 C so soider the leads as quickly as back on and set the power supply output voitage at least possible Table A 1 Replaceable Parts Option 011 Crowbar Models 62003A thru 62048 62006C thru 62048C 62018E thru
77. dc fxd mylar O1uF 200V dc fxd mylar 0047uF 200V dc fxd mylar 0022uF 200V dc Rectifier 1 200V 1A Diode 51 250mV 200V Stabistor 400mW 10V SS NPN S1 SS PNP 1 SS PNP 51 fxd comp 1 5 5 1 2W fxd met film 6 2k 1 1 8W fxd met film 750 1 1 8W fxd ww 5 9 1 2 3W fxd ww 3 6k 5 3W fxd ww 4 7k 5 3W fxd ww 6 8k 5 3W fxd ww 10k 5 3W Not Used fxd ww 2100 1 1W fxd ww 2950 1 1W fxd ww 3800 1 1W fxd ww 4660 1 1W fxd ww 10 750 1 3W fxd ww 12 900 1 3W fxd ww 16 100 1 3W fxd ww 19 350 1 3W fxd ww 25 800 1 4W fxd ww 30 050 1 4W fxd ww 51 550 1 5W fxd comp 430 5 1 2W fxd comp 470 5 1 2W fxd comp tk 5 1 2W fxd comp 2k 5 1 2W fxd ww 1k 5 3W fxd comp 7 5k 5 1 2W fxd comp 560 5 1 2W Current Sampling Resistor fxd ww 033 5 10W TO 6 14 d MJ M3 MFR PART NO 192D4749R8 192P 10392 RDM15C100J3C RDM15E300J3C 15 1015 192 10392 192047292 192 22292 1 5059 1N485B 40346 1525 0 0 242E3625 242E6825 242E 1035 EB 4315 EB 4715 EB 1025 EB 2025 242E 1025 EB 7525 EB 5615 CODE PART 0160 0154 0160 0161 0160 2197 0160 0174 0160 2199 0140 0041 0180 2141 0160 0157 0160 0154 1901 0327 1901 0033 1901 0460 1854 0095 1853 0041
78. dc 0160 0174 16 fxd mica 30pF 300V de ROM15E30053C 0160 2199 C18 fxd mica 100pF 500 dc 15 101 0140 0041 C19 d 0160 0157 CR1 2 Rectifier 51 200V 1A 1 5059 1901 0327 CR3 6 62003C thru 62018C Not Used 62024C thru 62048C Rectifier 1 200V 1A 1 5059 1901 0327 CR8 9 Diode 1 200V 1 4999 1901 0416 CR11 14 Diode 1 250mW 200V TN485B 1901 0033 CR15 Stabistor 400mW 10V 1901 0460 01 SS NPN 1 40346 1854 0095 Q2 62003 thru 62018C SS PNP 51 1853 0099 62024C thru 62028C SS PNP 1 1853 0041 62048C SS PNP 1 1853 0037 Q3 62003C thru 62018C 62024 thru 62048C SS NPN 1 SS NPN Si 6 9 MM2258 1854 0244 1854 0271 R1 fxd comp 1 5k 5 1 2W EB 1525 0686 1525 R2 3 fxd met film 6 2k 1 1 8W Type CEA 1 0 0698 5087 R4 fxd met film 750 1 1 8W Type CEA 0 0757 0420 R5 fxd ww 5 9k 196 2 3W 0811 1978 1 R6 62003 fxd ww 3 6k 5 3W 242E 3625 0811 1810 62004 fxd ww 4 7k 5 3W 0811 1812 62005C fxd ww 6 8k 5 3W 242E 6825 0811 0960 620066 fxd ww 10k 5 3W 242E 1035 0811 1816 62010C thru 62048C Not Used R8 62003C fxd ww 2100 1 1W 0811 3187 62004 fxd ww 2950 1 1W 0811 3192 62005C fxd ww 3800 1 1W 0811 3195 62006 fxd ww 4660 1 1W 0811 3193 62010 fxd ww 10 750 196 3W 0811 3194 DESCRIPTION MFR PARTNO MFR HP DESIG 00 CODE 62012 fxd ww 12 900 1 3W 28480 0811 3186 62015 fxd ww 16 100 1 3W 28480 0
79. differences are detected by U1 The error voltage is then amplified and applied to series regulator 1 to counteract the difference and maintain the 12 4 V output constant Output capacitor C3 stabilizes the reference regulator feedback loop to prevent oscillation 4 32 Zener diode VR1 provides an additional reference voltage of 7 5 V This voltage is not as tightly regu lated as the other two reference voltages since it is not controlled by the regulator circuit The unregulated 23 V taken directly from the rectifier is used only by Option 011 or 104 crowbar circuits 4 33 Additional Protection Features 4 34 The supply contains several special purpose components which protect the supply in the event of unusual circumstances One of these is the output diode CR9 or U5 refer to applicable schematic Con nected across the output terminals this diode prevents internal damage from reverse voltages that might be applied during system operation when one power sup ply is turned on before another The output diode can withstand currents equal to the maximum current rating of the supply for time periods of short duration approximately 3 minutes or up to half the current rating of the supply for longer time periods 4 35 The series regulator diode CR8 or U5 protects the regulating transistor s from the effects of a reverse current which would occur if an external voltage were applied across an unenergized supply 4 3
80. e same ground current and pickup problems can exist if an RMS voltmeter is substituted in place of the oscilloscope in Figure 5 3 However the oscillo scope display unlike the true RMS meter reading tells the observer immediately whether the fundamental period of the signal displayed is 8 3 milliseconds 1 120 2 16 7 milliseconds 1 60 2 Since the fundamental ripple frequency present on the output of an HP supply is 120Hz due to full wave rectification an oscilloscope display showing a 120Hz fundamental component is indicative of a clean measurement set up while the presence of a 60Hz fundamental usually means that an improved setup will result in a more accurate and lower value of measured ripple 5 26 Figure 5 3B shows a correct method of measur ing the output ripple of a constant voltage power supply using a single ended scope The ground loop path is broken by floating the power supply output Note that to ensure that no potential difference exists between the supply and the oscilloscope it is recommended that whenever possible they both be plugged into the same ac power buss If the same buss cannot be used both ac grounds must be at earth ground potential 5 27 Either a twisted pair or preferably a shielded two wire cable should be used to connect the output terminals of the power supply to the vertical input term inals of the scope When using a twisted pair care must be taken that one of the two
81. ect full load resistance across and output terminals of supply see Para graph 5 11 e Reconnect input power to supply Voltmeter should read output voltage set in Step within toi erances of load resistor and meter 5 17 Current To ensure that the supply will furnish the maximum rated output current proceed as follows a Connect test setup shown in Figure 5 2 Select load and current sampling resistor values according to Paragraphs 5 11 and 5 13 b Apply input power to supply and adjust Ry until digital voltmeter indicates a voltage drop which is proportional to the maximum rated output current POWER SUPPLY UNDER TEST DIGITAL VOLTMETER RHEOSTAT CURRENT SAMPLING RESISTOR Figure 5 2 Output Current Test Setup 5 18 Load Regulation Definition The change AE gut in the static value of DC output voltage resulting from change in load resistance from open circuit to a value which yields maximum rated output current or vice versa 5 19 To check the constant voltage load regulation proceed as foliows a Connect full load resistance across rear output terminals Paragraph 5 11 b Connect digital voltmeter across S terminals Turn on supply and obtain desired output voltage Record voltage read on voltmeter d Disconnect load resistance e Reading on digital voltmeter should not vary from reading recorded in step c by more than 0 01 or 1mV whichever is greater 5
82. er a different sequential number is assigned to each power supply starting with 00101 1 16 1f the serial number on your instrument does not agree with those on the title page of the manual Change Sheets supplied with the manual or Manual Backdating Changes define the differences between your instrument and the instrument described by this manual 1 17 ORDERING ADDITIONAL MANUALS 1 18 One manual is shipped with each power supply Additional manuals may be purchased from your local Hewlett Packard field office see list at rear of this manual for addresses Specify the model number serial number prefix and HP Part number provided on the titie page SECTION 1i INSTALLATION 2 1 INITIAL INSPECTION 2 2 Before shipment this instrument was inspected and found to be free of mechanical and electrical de fects As soon as the instrument is unpacked inspect for any damage that may have occurred in transit Save all packing materials until the inspection is completed If damage is found claim should be filed with the carrier immediately Also a Hewlett Packard Sales and Service office should be notified 2 3 Mechanical Check 2 4 This check should confirm that there are no broken connectors and that the panel surfaces are free of dents and scratches 2 b Electrical Check 2 8 The instrument should be checked against its electrical specifications Section V includes an inet performance check to verify prop
83. er Pad Packing Carton Option 101 220V Option 102 240V Fuse 0 3A 250V Fuse 0 375A 250V Power Transformer wired for 220V ac for option 101 or 240V ac for option 102 Option 103 120 240 Fuse 0 3A 250V replaces F1 if T1 wired for 240V ac Fuse 0 375A 250V replaces F1 if T1 wired for 240V ac Power Transformer shipped wired for 120V ac A 3 e NM 757 TO 3 342014 901 129 5020 8087 0400 0064 0360 1784 4040 0948 5000 9349 0340 0181 0340 0167 2190 0490 1400 0084 1400 0090 5000 9351 5000 9348 1400 0265 9211 1197 9220 1411 9220 1414 9220 1415 2110 0065 62003 thru 62010 62012C thru 62018 62024 thru 62048C C SERIES 62003 thru 62048 Main Power Supply Board fxd mylar 200V dc fxd mylar 0047uF 200 de fxd mylar 0012 200V 192P 10392 192P47292 REF MFR HP DESC MFR PART DESIG DD NO 0160 0161 0160 0157 C1 fxd elect 300uF 40V de 34D307G040GJ2 0180 1805 C2 fxd mica 390pF 300V dc 0140 0200 C3 fxd mylar 0 47uF 25V dc 0160 0174 C12 62003C thru 620028C fxd tantalum 4 7uF 35V dc 1500475 903582 0180 0100 620048 fxd tantalum 5uF 65V dc 0180 1836 C13 fxd mylar O1uF 200V dc 192P 10392 0160 0161 14 fxd mica 300V RDM15C10053C 0160 2197 15 fxd mylar 0 47 25V
84. er instrument operation 2 7 INSTALLATION DATA 2 8 The instrument is shipped ready for bench oper ation it is necessary only to connect the instrument to source of power and it is ready for operation 2 9 Location 2 10 This instrument is air cooled Sufficient space should be allotted so that a free flow of cooling air can reach the instrument when it is in operation At least 1 2 inch clearance at the bottom of the unit is recom mended to permit proper air flow The supply should be used in an area where the ambient temperature does not exceed 50 If operated at an ambient greater than 50 C the supply s output current must be linearly de rated down to 50 at 71 C 2 1 NOTE If the power supply must be operated in a restricted air flow environment the supply s power consumption and heat dissipation requirements can be minimized by oper ating at low line input voltage Consult your nearest HP sales engineer for more infor mation on the cooling requirements for your specific operation 2 11 Mounting Orientation 2 12 Figure 2 1 shows outline and dimension infor mation for each modular power supply size As shown holes are provided on three surfaces of the supplies any of which can be used to install the supply in the up right position If the top mounting holes are used how ever be sure that a rigid top support is employed to support the weight of the unit s Note that if any other orientation o
85. haracteristic on an oscilloscope more difficult POWER SUPPLY OSCILLOSCOPE UNDER TEST CONTACT PROTECTION NETWORK NOTE 3 M THIS DRAWING SHOWS A SUGGESTED METHOD OF BUILDING A LOAD SWITCH HOWE VER OTHER METHODS COULD BE USED SUCH AS A TRANSISTOR SWITCHING NETWORK MAXIMUM LOAD RATINGS OF LOAD SWITCH ARE SAMPS 250W NOT 2500W US MERCURY RELAY CLARE TYPE HGP i002 OR WE TYPE 2768 SELECT CONTACT PRO TECTION NETWORK ACCORDING TO MERCURY RELAY MANUFACTURERS INSTRUCTIONS EACH Ry IS EQUAL TWICE THE NORMAL FULL LOAD RESISTANCE 2 USED IN PREVIOUS TESTS REPETITIVE LOAD SWITCH NOTE 1 _ Figure 5 4 Transient Recovery Time Test Setup 5 36 To check the transient recovery time proceed as follows a Connect test setup shown in Figure 5 4 Both load resistors Rr are twice normal value of full load resistance b Turn on supply and close the line switch on the repetitive load switch setup c Set the oscilloscope for internal sync and lock on either the positive or negative load transient spike d Set the vertical input of the oscilloscope for ac coupling so that small dc level changes in the output voltage of the power supply will not cause the display to shift e Adjust the horizontal positioning control so that the trace starts at a point coincident with a major graticule division This point is then representative of time ze
86. held at nearly zero volts 4 15 The inverting input of the comparison amplifier 2 of U2 is connected through jumper W1 to the constant voltage summing point As indicated on NOTE 7 of each schematic W1 is connected either to the junction of R5 R7 for supplies below 10 V or to the junction of R7 R8 for supplies 10 V and above The non inverting input to the comparison amplifier pin 3 of U2 is connected directly to the output volt age sensing terminal S of the supply Instantaneous changes in the output voltage or changes at the sum ming point due to rotation of the voltage pot produce a difference voltage between the two inputs of the comparison amplifier This difference voltage is am plified and appears at the output of the amplifier at pin 6 4 16 Capacitor C12 and resistor R10 couple rapid out put voltage variations to the input of U2 while slower dc changes are coupled to U2 via resistor R8 Diodes CR11 and CR12 prevent excessive voltage excursions from over driving the comparison amplifier RC net work R12 C13 provide degenerative feedback to help stabilize the feedback loop 4 17 Driver 4 18 The driver amplifies the error signal from the constant voltage or current limit comparison amplifiers to a level sufficient to drive the series regulating tran sistor s Inverting stage 02 receives its input signal from the OR gate diode CR13 or CR14 that is con ducting at the time During normal constant
87. ing 5 60 C and E Suffix Boards To remove P C board for these supplies proceed as follows a Loosen right cover and remove top front cover previously described b Remove bottom rear cover Remove left side cover by removing two screws about 5 inches back from front edge and two screws holding terminal strip bracket d Board and series regulating transistor s are now exposed for servicing or removal 5 61 Series Regulator Replacement 5 62 To remove and replace a series regulating tran sistor proceed as follows a Remove covers previously described b Remove collector screws and unsolder base and emitter leads c To replace transistor follow the below re assembly order as viewed from bottom of heat sink Collector screw flat washer shoulder washer heat sink silicon grease Dow DC 3 HP 6040 0209 or HP 8500 0059 mica insulator more silicon grease transistor electrical lug on one collector screw lock washer and nut On A series transistors the base and emitter pins have associated insultor bushings 5 63 Capacitor Replacement A Suffix Supplies 5 64 Due to space limitations in A series supplies some of the filter and output capacitors C9 and C11 are secured with nylon cable ties These ties must be cut to remove C9 or C11 Replacement capacitors in clude these ties when ordered from Hewlett Packard Cable ties can also be ordered separately Both C9 and C11 requi
88. mi conductors used in the modular supplies described by this manual When replacing a semiconductor use a Hewlett Packard part or an exact commercial ment part if applicable In cases where neither of these parts are immediately available and a part is needed for emergency operation or troubleshooting verification the first or second alternate part see Table 5 7 can be tried with at least a 9096 probability of success Also the user has the option of hand select 5 12 ing the aiternate part by using the device characteristics listed in Table 5 7 5 71 Notice that these alternate replacements apply oniy to the HP modular power supplies and their use in any other Hewlett Packard instrument is not authorized because of inclusion in this table 5 72 Current Limit Adjustment 5 73 The current limiting point for the supply is fac tory set to 104 1 of the current rating with the out put voltage set at nom nal As described in Paragraph 3 8 the current limit may require readjustment at out put voltages other than nominal The current limit should also be checked and adjusted if necessary after replacement of R15 R17 if used R18 or R19 Proceed as follows to check and adjust the cur rent limit a Connect setup shown in Figure 5 6 b With Ry at maximum set output voltage to desired value Decrease R until current limit is reached substantial increase 120Hz ripple observed on scope Re
89. n open C15 or C16 Oscillation near the current limit ng crossover point are caused by an open CR15 Oscillation and or poor load transient recovery time 5 7 Table 5 3 Low Output Voltage Troubleshooting STEP ACTION PROBABLE CAUSE Check input voltage a Normal voltage a Proceed to Step 2 reference supply volt b Abnormal b CR1 or CR2 open or shorted age between test points TC1 T1 open and should read 30 6Vdc Check 12 4V reference Voltage between test points P and S shouid be 12 4 1 3Vdc a Proceed to Step 3 b 1 or R1 open a Normal voltage Abnormal Check 6 2 and 7 5V references Voltage be tween test points R or and S should be 6 2 0 7Vdc or 7 5 0 8Vde respec tively a Proceed to Step 4 b Check applicable zener diode VR2 Normal voltage Abnormal Check raw dc input to main power supply Voltage between test point F and S are different for each model and are given in a table opposite the appropriate schematic a Normal voltage b Abnormal voltage beyond 20 a Proceed to Step 5 b CR3 CR6 or U4 open C9 shorted or T1 open To eliminate the cur rent limit circuit as a possible source of the trouble measure voitage drop across applicable OR gate diode CR14 Test points C to G
90. ner however it is imperative that the common mode rejection capability of the scope be verified by shorting together its two input leads at the power supply and observing the trace the CRT this trace is a straight line then the scope is properly ignoring common mode signal present If this trace is not a straight line then the scope is not rejecting the ground signal and must be realigned in accordance with the manufacturer s instructions until proper common mode rejection is attained i 5 30 Ripple and or noise output measurement pro cedures are given in the following steps f a high fre quency noise measurement is desired an oscilloscope with sufficient bandwidth 20 2 must be used To measure the ripple noise output proceed as follows a Connect oscilloscope or RMS voltmeter as shown in Figures 5 3B or 5 3 b Connect input power and observe oscilloscope The observed ripple should be less than 1mVrms and 2mV p p 5 31 Load Transient Recovery Definition The time for output voltage re covery to within Y millivolts of the nominal output voltage following a Z amp step change in load current where X BOusec Y 15mV and Z is the specified load current change equal to half of the current rating of the supply The nominal out put voltage is defined as the DC level half way be tween the static output voltage before and after the imposed load change 5 32
91. ngton N j Quincy Mass Livingston N F Lester Pa Franklin 114 Chicago 11 IMC Magnetics Corp Eastern Div Westbury N Y Sealectro Corp Mamaroneck N Y ETC Inc Cleveland Ohio International Electronic Research Corp Burbank Renbrandt Inc Boston Mass 1 2 C3 C4 C9 62003A thru 62010A 62012 thru 62028A 62048A C11 62003A thru 62024A 62028A 62048A C12 62003A thru 62028 62048A C13 C14 C15 C16 CR1 2 CR3 6 62003A thru 62006A 62010A thru 62048A CR8 9 CR11 14 CR15 Q1 Q2 Q3 Ri R2 3 R4 R5 R6 62003A 62004A 62005A 62006A 62010A thru 62048A R8 62003A 62004A 62005A 62006A 62010A 62012A Tabie 6 4 Reptaceable Parts DESCRIPTION A SERIES 62003A thru 62048 Main Power Supply Board fxd elect 40Vdc fxd mica 390pF 300Vdc fxd mylar A7uF 25Vdc fxd ceramic O5uF 400Vdc fxd elect 6000uF 25V dc fxd elect 3000uF 50V DC fxd elect 1500uF 100Vdc fxd elect 1400uF 30Vdc fxd elect 490uF 65Vdc fxd tantalum 4 7uF 35Vdc fxd tantalum 5uF 65Vde fxd mylar O1u F 200Vdc fxd mica 10pF 300Vdc fxd mica 47uF 25Vdc fxd mica 30pF 300Vde Rectifier Si 200V 1A Diode Si 200V 3A Diode Si 200V 1A Rectifier Si 200V 1A Diode Si 250mW 200V Stabistor 400mW 10V SS NPN Si SS PNP Si SS NPN Si fxd comp 1 5k 5 1 2W fxd met film 6 2k 1 1 8W fxd met film 750 1 1 8W fxd ww 5 9k 1 2 3W fxd ww 3 6k 5 3W fxd
92. nical Cover Top Rear 62003E 62004E 62005E 62006E 62010 62012 62015 62018 62024 62028 62048 Cover Bottom Rear 62003 thru 62006E 62010 thru 62048E Bracket 2 C11 62003E thru 62028E 62048E Not Used Bracket 1 3 8 C11 62003E thru 62028E Not Used 62048E Heat Sink Transistor 02 62006E thru 62018E Not Used 62024E thru 62048 Side Panel Right Side Panel Left Snap Bushing Left Side Panel MFR PART MFR HP RS CODE PART 62048 80093 3103 0017 3103 0019 1906 0039 1906 0041 1906 0040 5060 9641 5060 9642 5000 9355 5000 9353 1250 0030 5020 8092 5020 8094 0400 0064 F1 62003E thru 62006E 62010E thru 62048E T3 62003E 62004E 62005E 62006E 62010E 62012E 62015E 62018E 62024E 62028E 62048E 62003E thru 62006E 62010E DESCRIPTION Terminal Block Jumper Terminal Block Cover Heat Sink O3 O5 Insulator Mica 3 Shoulder washer Insulator 03 05 Thermal Compound Heat Sink Fusehoider F1 insulator Fuseholder Bracket Rear Chassis Bracket Voltage Adjust Bracket 2 C9 Spacer 8 32 x 3 4 T1 Plug Crowbar Adjust Hole Packing Carton Floater Pad Packing Carton Floater Pad Packing Carton Floater Pad Packing Carton Option 101 220V ac Option 102 240V ac Fuse 1 5A 250V Fuse 20A 2
93. ode 28480 assigned to Hewlett Packard Co Palo Alto California 6 2 Transistor Electronics Corp Minneapolis Minn Westinghouse Electric Corp Eimira N Y Fairchild Camera and instrument Mountain View Calif Birtcher Corp The Los Angeles Calif Sylvania Electric Prod Inc Mountainview Calif IRC Div of TRW Inc Burlington towa Continental Device Corp Hawthorne Calif Raytheon Co Components Div Mountain View Calif Breeze Corporations Inc Union N J Reliance Mica Corp Brooklyn Sloan Company The Calif Vemaline Products Co Inc Wyckoff General Elect Co Minature Lamp Dept Cleveland Ohio Nylomatic Corp Norrisville Pa RCH Supply Co Vernon Calif Airco Speer Electronic Components Bradford Pa Hewlett Packard Co New Jersey Div Rockaway General Elect Co Semiconductor Prod Dept Buffalo N Y General Elect Co Semiconductor Prod Dept Auburn amp Components Inc Burndy Corp Wagner Electric Corp Tung Sol Div CTS of Berne Inc Chicago Telephone of Cal inc So Pasadena Calif Newton Mass Norwalk Conn Bloomfield N J Berne Ind IRC Div of TRW Inc Boone N C General Instrument Corp Newark NJ Philadelphia Handle Co Camden N J U S Terminais inc Cincinnati Ohio Hamiin Inc Lake Mills Wisconsin Clarostat Mfg Co inc Dover N H Co Dallas Texas Hewlett Packard
94. on is initiated by the current limit comparison amplifier which conducts if the out put current that flows through the current sampling resistance exceeds a value established by the current limit adjust potentiometer When conducting this am plifier sends a turn down signal to the series regulator via the driver 4 11 An output capacitor connected across the output of the supply helps to stabilize the feedback loop regardless of the type of load that is imposed 4 12 Constant Voltage Comparison Amplifier 4 13 This circuit consists of the VOLTAGE ADJUST potentiometer R7 and a differential amplifier stage U2 and associated components An integrated circuit is used for the differential amplifier for increased reliability and to minimize differential voltages due to mis matched transistors and thermal differentiais 4 14 The voltage comparison amplifier continuously compares the output voltage of the supply with the voltage drop between the S terminal and the circuit s summing point junction at voltage divider R5 R7 and R8 1f these two voltages are momentarily unequal an error voltage is generated whose amplitude is propor tional to the difference The error signal ultimately alters the conduction of the series regulator which in turn alters the output current so that the output volt age becomes equal to the voitage at the summing point Hence through feedback action the difference between the two inputs to U2 is
95. oped within the unit Because of these factors it is recommended that the total drop in both load leads not exceed 0 5 V a larger drop must be tolerated please consult your local HP sales engineer NOTE Due to the voltage drop in the load leads it may be necessary to readjust the current limit Refer to Paragraph 3 8 3 16 It should be noted that a problem can occur in obtaining maximum rated output voltage nominal 40 5 V from a lower voltage supply below 10 V even if the total voltage drop in both load leads is maintained at 0 5 Voit This problem is most likely to occur when the input ac is at low line To counter act this effect the user can maintain the ac input at a higher line voltage or reduce the voltage drop in the load leads by using larger diameter wires 3 3 3 17 SPECIAL OPERATING PRECAUTIONS 3 18 Temperature 3 19 The normal operating temperature for this supply is from 0 to 50 C ambient Beyond 50 C the output current is linearly derated to 50 at 71 C Additional information on temperature is given in Section NOTE During normal operation of the supply the case of the unit may become hot to the touch This is anormal occurrence and cause for alarm 3 20 Mounting Orientation 3 21 The supply should be mounted and operated in the upright position as instructed in Section H If the supply must be operated in an orientation other than upright an adequate flow of cooling air mu
96. p Mt Vernon Littlefuse Inc Des Plaines Ill Minnesota Mining and Mfg Co St Paul Minn Minor Rubber Co Inc Bloomfield N J james Millen Mfg Inc Malden Mass Compton Calif Dialight Corp L W Mitier Table 6 3 Code List of Manufacturers Continued MANUFACTURER ADDRESS 76530 76854 Cinch City of Industry Calif Oak Mfg Co Div of Oak 5 Electro Netics Corp Crystal Lake Bendix Corp Electrodynamics Div No Hollywood Calif Co Mountainside N T Patton MacGuyer Co Providence Phaostron Instrument and Electronic Co South Pasadena Calif Philadelphia Steel and Wire Corp Philadelphia Pa American Machine and Foundry Co Potter and Brumfield Div Princeton TRW Electronic Components Div Camden Resistance Products Co Harrisburg Pa Illinois Tool Works Inc Shakeproof Div Elgin It Everlock Chicago Inc Chicago 1 Stackpole Carbon Co St Marys Pa Stanwyck Winding Div San Fernando Electric Co Inc Newburgh N Y Tinnerman Products Inc Cleveland Ohio Stewart Stamping Corp Yonkers Waldes Kohinoor Inc LL LCG N Y Whitehead Metals Inc New York N Y Continental Wirt Electronics Corp Philadelphia Pa Zierick Mfg Co Mt Kisco N Y Mepco Div of Sessions Clock Co Morristown Bourns Inc Riverside Calif Howard Industries Div of Msi Ind Inc 77068
97. pulse so the pulse transformer is not _ employed Notice that the higher current rated models using j either the triac or SCR have a holding current path through RQ returned to the negative side of C9 in the main power supply This holding path keeps the SCR or triac conductin if the series regulator is turned off by the current limit cir cuit For supplies with the highest current ratings Figure 2 transistor O4 is included to immediately initiate turn off when the crowbar fires Turning down the supply in thi manner limits current dissipation in the crowbar circuit Temperature switch 751 Figure 2 only is provided to shut off the supply in the event of certain types of power supply failures where the current limit circuit cannot turn down the output and the line fuse does not blow For ex ample if the series regulator became shorted a turn down signal from transistor Q4 would have no effect and the con tinuous current flow through the CR6 crowbar path could cause component damage In this case the current flow through the TS1 heater leads causes the device to open the positive lead in the main supply Notice that once a temperature switch has been activated it must be replaced as outlined on the next page For those supplies with lower current ratings Figure 1 a temperature switch is not required because the line fuse will blow in the event of a series regulator short or any other f
98. re Panduit type SST 2 or HP 1400 0265 cable ties The ties can be installed with a special tool such as a Panduit GS 2B or with a pair of long nose pliers 5 65 To replace the capacitor proceed as follows a Thread pointed end of tie through holes in P C board from top Ensure that gripping teeth are on inside of loop being formed b Insert capacitor in proper position on board Head of cable tie should face inside of unit Tighten cable tie with tool or pliers Cut ex cess about 1 4 inch from head d Solder and trim capacitor leads 5 66 Crowbar Board Removal 5 67 A Suffix Supplies To remove the crowbar board optional on series supplies first remove the cover Next remove one number six and one number eight screw holding the crowbar board If the SCR is replaced use the same silicon grease recommended for the series regulating transistor 5 68 C and E Suffix Supplies For and E series supplies the crowbar board is removed as follows a Loosen right side cover b Remove top front cover c Remove one self tapping screw from center of bottom rear cover d Loosen other self tapping screw and rotate board upward to gain access to components To remove board remove second self tapping screw completely f IF SCR is replaced use silicon grease recom mended previously for series regulator 5 69 Semiconductor Replacement 5 70 Table 5 7 contains replacement data for the se
99. riac as the shorting element while others utilize an SCR In add ition because of possible circuit delays in the low voltage high current supplies as well as due to the high current dis sipation requirements of some of the intermediate voltage supplies an alternate holding current path for the shorting element in these supplies is provided to prevent the supply from turning completely off during crowbar operation A Figures A 1 and 2 illustrate the two basic crowbar circuits provided for the 011 Option As shown in the ilius trations the crowbar circuits are similar in design Resistor R45 CROWBAR ADJUST adjusts the bias of Q1 with respect to S and zener diode VR1 provides a stable reference A 1 voltage which is compared with the S potential During normal operation is conducting and the next stage 02 or is cut off 1f the output voltage exceeds the voltage at which R45 is set Q1 turns off which turns on the next stage to trigger the triac CR5 or SCR CR6 depending on the particular model The triac or SCR thus places a short circuit across the output The choice between using either the triac or SCR is merely a function of the current rating of the supplies with the higher current supplies employing the SCR circuit Notice that all crowbar circuits employing the SCR require a pulse transformer T1 which produces a positive trigger pulse to fire the SCR The triac does not re quire a positive trigger
100. riptions and schematics for both crowbars are contained in the applicable Appendix A or B 5 54 REPAIR AND REPLACEMENT 5 55 Cover Removal 5 56 A Suffix Supplies To remove the wrap around cover on series supplies remove two screws each from the front and rear of the package and lift cover away from unit If unit is equipped with an optional crowbar sufficient lead length is provided so that the cover can be placed beside the unit 5 57 Cand E Suffix Supplies To remove the covers for both the and E series supplies proceed as follows On right side of package remove two screws approximately 5 inches to rear of the front edge of package This loosens top and bottom L shaped covers b To remove top front cover remove four screws on front of unit one per corner To remove bottom rear cover remove four screws at rear of unit one per corner 5 58 Main Board Removal 5 59 Suffix Boards To remove the main board in A series supplies proceed as follows a Remove cover previously described b Remove two screws about 1 2 inch from rear edge holding terminal strip bracket c Remove two screws about 3 inches from rear edge holding P C board d Push P C board toward bottom of unit until top edge clears top slot in side cover e Pull board from top slot then out of bottom slot and rotate for access to circuit side f Ensure that leads are not pinched when re assembl
101. ro f Adjust the vertical centering on the scope so that the tail ends of the no load and full load waveforms are symmetrically displaced about the horizontal center line of the oscilloscope This center line now represents the nominal output voltage defined in the specification g increase the sweep rate so that a single tran sient spike can be examined in detail h Adjust the sync controls separately for the positive and negative going transients so that not only the recovery waveshape but also as much as possible of the rise time of the transient is displayed i Starting from the major graticule division rep resentative of time zero count to the right 50usec and vertically 15mV Recovery should be within these tolerances as illustrated in Figure 5 5 SECONDS SECONDS UNLOADING TRANSIENT LOADING TRANSIENT Figure 5 5 Transient Recovery Time Waveforms 56 5 37 TROUBLESHOOTING 5 38 Before attempting to troubleshoot this instru ment ensure that the fault is with the instrument itself and not with an associated circuit The perfor mance test enables this to be determined without having to remove the covers from the supply 5 39 A good understanding of the principles of operation is a helpful aid in troubleshooting and it is recommended that the reader review Section of the manual before attempting to troubleshoot the unit in detail Once the principles of operation are understood refer
102. rrect and that the connect ing straps are tightened securely Figure 3 1 Normal Strapping 3 7 Current Limit 3 8 Figure 3 2 shows typical current limiting charac teristics for all HP modular suppiies As indicated on the drawing the current limit point varies in accord ance with the output voltage As received from the factory the initial current limit point is set to 104 5170 of the current rating with the output voltage at its nominal value This same current limit setting is recom mended for output voltages within the adjustment span because 1 the current limit crossover point must be at least 396 higher than the maximum expected operating current to prevent performance degradation and 2 a current limit setting of higher than 105 of rating creates the possibility of excessive internal heat ing as specified in the caution note of Figure 3 2 Hence the current limit potentiometer accessible through cutout in the side panel may have to be readjusted to satisfy the above two requirements if the user intends to operate at an output voltage which is above or below nominal For example if the user has a supply of 10 Volts or above and requires an output voltage of 5 above nominal the initial current limit point would be factory set to approximately 10996 of rating This violates the 10596 current limit constraint mentioned previously and thus the current limit potentiometer would have to be adjusted descri
103. s to identify the 1 9 Detailed specifications for the power supplies difference mainly in component values among the are given in Table 1 1 supplies illustrated in the common schematic Table 1 1 Specifications INPUT 115Vac 10 single phase 48 63 Hz See Options 101 102 and 103 OUTPUT See Paragraph 1 5 LOAD REGULATION Less than 0 0196 or 1 mV whichever is greater for a full load to no load change in output current OVERLOAD PROTECTION A current limit circuit cuts back current linearly to approximately 1096 of rated output current when supply is short circuited Automatically resets when overload removed Current limit activation point adjustable screwdriver control but preset at factory to activate at 104 5196 of maximum rated output current at nominal output voltage LINE REGULATION Less than 0 01 or 1 mV whichever is greater for a 10 change in the specified input voltage OUTPUT CONTROL Screwdriver adjustment accessible through hole in front panel Minimum adjustment range is 0 5 V or 5 whichever is greater RIPPLE AND NOISE Less than 1 mV rms and 2 mV p p up to 20 MHz ERROR SENSING Error sensing normally accomplished locally at rear terminals Provision included at rear terminal strip for remote sensing with correction for load lead voltage drops of up to 0 5 V total Load protected if sensing terminals inadvertently opened TEMPERATURE RANGE
104. sampling resistor by its ohmic value The total resistance of the series combination sampling resistor and load resistor should be equal to the full load resistance as determined in the preceding para graphs Of course if the value of the sampling resistance is very low when compared to the full load resistance the value of the sampling resistance may be ignored The meter shunt recommended in Table 1 1 for example has a resistance of only 5 milliohms and can be neglected when calculating the load resistance of the supply 5 14 Figure 5 1 shows a four terminal meter shunt The load current is fed to the extremes of the wire lead ing to the resistor while the sampling terminals are lo cated as close as possible to the resistance portion itself CURRENT SAMPLING TERMINALS EXTERNAL LOAD TO UNGROUNDED TERMINAL OF POWER SUPPLY TO GROUNDED TERMINAL OF UPPLY SAMPLING POWER SUPPE RESISTOR LOAD TERMINALS Figure 5 1 Current Sampling Resistor Connections 5 15 Rated Output 5 16 Voltage To ensure that the supply will furnish the maximum rated output voltage proceed as follows a Connect digital voltmeter across S and S terminals of supply observing correct polarity b Apply input power to supply With no load connected set output voltage of supply to any value desired within adjustment span This output voltage can be used for all remaining con stant voltage tests d With supply off conn
105. set at maximum A temperature switch TS1 is included on some sup 2 Measure the power supply output voltage and set plies Figure 2 Note 6 to shut down the unit in case of the output voltage with the VOLTAGE ADJUST screw internal failures where the current through the SCR crowbar driver control for the desired crowbar trip voltage If the path could result in excessive dissipation The power leads desired trip voltage is beyond the maximum output voltage of the device wil open if the current flow through the heat that can be attained by adjusting VOLTAGE ADJUST per er leads causes the temperature to reach 115 1 5 C It form the next step If the supply can be set to the desired takes between 4 to 40 seconds depending mainly on the crowbar trip voltage go on to step 4 rating of the supply in question after the SCR fires for the 4 ifthe output of the supply cannot be set to the device to reach the activation temperature Once a temper desired crowbar trip voltage ature switch has opened it must be replaced as described in Turn VOLTAGE ADJUST to minimum the next paragraph setting The temperature switch is polarity sensitive and its b Turn off the supply and temporarily power leads must be connected as shown on Figure A 2 shunt a 12k 5 resistor across Note 6 The side with the ceramic insulator must be con resistor on the main power supply nected to the positive side of the rectifier marked with boar
106. st be main tained Contact your nearest HP sales engineer for details SECTION IV PRINCIPLES OF OPERATION E 41 OVERALL DESCRIPTION 4 2 Figure 4 1is a simplified schematic of the power supply indicating all of its major circuits Except for minor variations discussed later in Section IV the Hewlett Packard modular supplies covered by this manual are as shown in Figure 4 1 Notice that each stage of the supply has been designated according to function These functional designations also appear on the applicable schematic at the rear of the manual so that both diagrams can be correlated POWER TRANSFORMER 12 4V REFERENCE 6 2 SUPPLY 7 5 INPUT RECTIFIER FILTER THERMAL SWITCH DRIVER NOTES DENOTES VOLTAGE FEEDBACK PATH DENOTES CURRENT FEEDBACK PATH SERIES REGULATOR 43 ac input voltage is reduced to the proper level by the power transformer and fed to the rectifier filter where it is converted to raw unregulated dc The raw de voltage is adjusted by the series regulator so that a regulated constant voltage is available across the out put terminals of the supply 4 4 series regulator part of a feedback loop alters its conduction in accordance with the feedback control signals obtained from the driver The driver in turn is controlled by feedback signals originated in CURRENT LIMIT COMPARISON AMPLIFI
107. supplies 62003 through 62048A 62003C through 62048C 62003E through 62048E 62003G through 62048G The Option 011 crowbar circuits for the above sup plies are similar in design with many supplies utilizing identical crowbar circuits Some variations in circuit op eration and in component values do however exist so that two crowbar schematics are presented as part of this appendix Also all significant differences in circuit oper ation among the crowbar circuits are completely described In general the crowbar circuits consist of compon ents mounted on a separate printed wiring board For the A suffix models however the trip level adjustment R45 is mounted on the power supply main printed wiring board For the G suffix models this resistor is mounted on the power supply main chassis CIRCUIT DESCRIPTION The overvoltage protection crowbar circuit protects delicate loads from high voltage conditions that might result from a power supply failure such as a shorted series regula tor The crowbar circuit monitors the output of the power supply such that if the output exceeds an adjustable thres hold a virtual short circuit is placed across the output of the supply The short circuit causes the output current to attempt to rise at which time the current limit com parison amplifier responds to reduce output voltage to wards zero Due to differences in voltage current ratings among the modular power supplies some employ a t
108. ther than upright is required adequate air flow must be provided see your nearest HP sales engi neer for additional information 2 13 Rack Mounting 22 14 The modular power supplies can be readily mounted in any combination in a standard 19 inch rack using the Hewlett Packard Rack Mounting Tray Model 62410A The supplies are mounted upright and attached to the tray using the two suffix models or four E suffix models 10 32 threaded mounting holes located in the bottom of the supply case The maximum number of supplies that can be mounted in the tray depends on the types of supplies used For example if all 1 8 width A suffix supplies are employed eight modular power supplies can be mounted in the tray Of course the tray does not have to be filled to capacity 4MTG HOLES 10 32 THREADED TERMINAL SCREW SIZE 6 32 CURRENT INSERTS CROWBAI 0 55 SIDE FAR SIDE INPUT OUTPUT 5 03 tizemm 72 9 56 7242 smm 7 i pa a105 NR 27mm 82003A 62004A 62005 62006A 62010 62012 _ E amp A SUFFIX MODELS 1 8 WIDTH PACKAGE i SEA DED m 62018 222 INSERTS 52024 t2o8 8mm TOP amp BOTTOM 62028 BOTTOM 62048A 62015 7 22 asami
109. to the initial troubleshooting procedures in Para graph 5 41 to locate the symptom and probable cause 5 40 Various lettered test points are located at critical points on the PC board to assist in trouble shooting These test points are also included on the schematic d agrams at the rear of the manual 5 41 Initial Troubleshooting Procedures 5 42 if a malfunction occurs proceed as follows 1 Disconnect input power and remove all loads from unit 2 Ensure that S and S terminals are strapped securely to proper output terminals 3 Measure output voltage across sensing ter minais and proceed to Table 5 2 to locate your symptom and appropriate isolation procedures 5 43 Open Fuse Troubleshooting 5 44 Although an open line fuse can be caused by fatigue or line transients it is recommended that the unit be first checked for internal shorts before replac ing the fuse To accomplish this test follow the below steps in sequence 1 Visually inspect the unit for charred compo nents foreign matter and obvious shorts 2 With power removed connect ohmmeter between output terminal and test point F on the P C board Reading should not be jess than the value of R31 between 200 and 5 600 ohms depending upon the modei number after filter capacitor C9 becomes charged 1f resistance is less than R31 check C9 4 5 6 04 04 O5 CR8 05 9 or 05 or C11 for short 3 Conne
110. urrent z double pole double throw double pole single throw electrolytic encapsulated farad degree Farenheit fixed germanium Henry Hertz integrated circuit inside diameter incandescent Kilo 103 milli 10 3 mega 106 micro 1076 metal Reference Designators Continued vacuum tube neon bulb photocell etc zener diode socket integrated cir cuit or network Description Abbreviations manufacturer modular or modified mounting nano 1079 normally closed z normaliy open nickel plated ohm order by description outside diameter pico 10712 printed circuit potentiometer peak to peak parts per million peak reverse voltage rectifier root mean square silicon single pole double throw single pole single throw small signal slow blow tantulum titanium z volt variable wirewound Watt Table 6 3 Code List of Manufacturers CODE MANUFACTURER ADDRESS CODE MANUFACTURER ADDRESS Sales Co Inc Aerovox Corp Sangamo Electric Co S Carolina Div Allen Bradley Co Milwaukee Wis Litton Ind Beverly Hills Calif TRW Semiconductors inc Lawndale Calif Dallas Texas Manchester N H Rockford Hi Dover Ohio Saugerties Jamaica N Y New Bedford Mass Pickens S C Texas Instruments Inc RCL Electronics Inc Amerock Corp Sparta Mfg Co Ferroxcube Corp Fen
111. voltage operation CR13 is forward biased and CR 14 is reverse biased The reverse is true during current limiting operation 4 19 Stage 02 provides mainly voltage amplification of the feedback signal while emitter follower pro vides most of the current gain Some models e g 62048A contain only one driver stage 02 instead of two 4 20 Feedback capacitor C18 provides degenerative feedback to to prevent oscillation and C19 helps shape the high frequency rolloff of the feedback loop response curve R28 provides a leakage current path for transistor Q3 4 21 Series Regulator 4 22 The series regulator or series control element acts as a variable resistance connected in series with the ioad Its conduction is controlled by the feedback signals from the driver so that the output voltage is maintained constant or the current limit is not ex ceeded A diode CRg on Figure 4 1 connected across the regulator protects the series element s from possible damage by a reverse current flow 4 23 Many modular power supplies employ one series transistor as indicated on Figure 4 1 However higher power units such as Models 62003E thru 62048E use two regulating transistors connected in parallel to minimize power dissipation Approximately haif of the output current flows through each transistor 4 24 Current Limit Comparison Amplifier 4 25 This circuit consists of current limit adjust po tentiometer R18 and a differential
112. wal Laboratories Morton Grove Amphenol Corp Broadview Radio Corp of America Solid State and Receiving Tube Div Somerville NJ Semiconductor Products Dept Syracuse Corp Transitron Electronic Corp Wakefield Mass Pyrofilm Resistor Co Inc Cedar Knolls N J Arrow Hart and Hegeman Electric Co I Hartford Conn ADC Electronics Inc Harbor City Calif amp Burns Mfg Co Inc Mineola N Y Hewlett Packard Co Palo Alto Div Palo Alto Motorola Semiconductor Prod inc Phoenix Arizona Westinghouse Electric Corp Semiconductor Dept Youngwood Ultronix inc Grand Junction Colo Wakefield Engr Inc Wakefield Mass General Elect Co Electronic Capacitor amp Battery Dept Irmo S C Bassik Div Stewart Warner Corp Bridgeport Conn IRC Div of TRW inc Semiconductor Plant Lyon Mass Amatom Electronic Hardware Co Inc New Rochelle N Y Beede Electrical Instrument Co Penacook General Devices Co indianapolis Ind Semoor Div Components Inc Phoenix Arizona Robinson Nugent Inc New Albany N Y Torrington Mfg Co Van Nuys Calif Compton Calif 07137 07138 07263 07387 07397 07716 07910 07933 08484 08530 08717 08730 08806 08863 08919 09021 09182 09213 09214 09353 08922 11115 11236 11237 11502 11711 12136 12615 12617 12697 13103 14493 14655 14936 15801 16299 Use C
113. xd ww 300 5 5W fxd ww 750 5 5W film 150 1 1 8W film 139 1 1 8W film 130 1 1 8W film 115 1 1 8W film 107 1 1 8W film 182 1 1 8W film 162 1 1 8W film 110 1 1 8W film 68 1k 1 1 8W fxd comp 100 5 1 2W fxd comp 560 5 1 2W fxd comp 1 3k 5 1 2W fxd comp 270 5 1 2W fxd comp 6 8 5 1 2W fxd comp 5 1 5 1 2W fzd 10 59 1 2W fxd 12 596 1 2W fxd comp 75 5 1 2W fxd ww 5 1 5 2W fxd ww 10 5 3W fxd ww 15 5 3W Type CW10 1 Type CW5 2 Type BWH Type BWH Type BWH 242E3R05 Type BWH Type 110 F4 242E 1005 Type C 425 242E5005 243E7505 243E 243E2015 243E3015 243E7515 Type CEA 0 Type CEA T 0 Type CEA 0 Type CEA 0 Type CEA 0 Type CEA T 0 Type CEA 0 Type CEA 0 Type CEA 0 EB 1015 5615 1325 2715 1005 1205 7505 BWH 242E1005 MFR HP CODE NO 91637 28480 0811 1887 0811 3174 0811 1846 0811 1676 0811 1671 0811 1673 0811 1224 0811 2553 0811 1675 2100 0281 0811 1718 0698 3609 0811 1853 0811 1854 0812 0097 0812 0098 0811 1224 0811 1215 0811 1861 0757 0284 0698 4099 0757 0404 0698 4406 0698 4405 0757 0406 0757 0405 0757 0402 0757 0461 0686 1015 0686 5615 068

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