User Manual UNB - EVI Electronics
Contents
1. E ee 26 6 TROUBLE SHOOTING CH 26 7 TECHNICAL SPECIFICATIONS iati ntn nen ern enean pad 27 7 1 Dimensional Drawings UNB5 0 12 5 KVA nnnnnesnsnsnennssenennnnnnnnnnnnnennnnnnnnnnnnennnnnnnnn en entente 29 7 2 Dimensional Drawings UNB23 0kVA amp 40 0 24 2242 2 2 81 8 0 2 0 0 18 07 00000 29 7 3 Photo UNBS5 0712 5KWA revo etaed 30 7 4 Photo 23 0 3020 400 30 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 5 36 B APPENDIX SERVICE MENUS do ia PA E AREA EE reais eres 34 8 1 Servicemenu Lc exe ss A 31 8 1 1 Table Adjustable parameters service menu 1 entente nennen nentenene tenent 31 81 2 Flow chart Service fenus era 32 8 1 3 Selection of Service men leeren prete pet ieu tne eben atc mn ccu ore 32 8 2 Service MEN 2 33 8 2 1 Table adjustable parameters service menu 2 esent nente tnter nennen 33 8 2 2 Flow chart Service menu 2 esee en2. Function logic OK COM and NO closed Is equal to the programming not inverted NOTE If the UNB works in combination with a single inverter or inverters in parallel operation it is necessary to con nect through the synchronization bus contacts SYNC GND SYNC GND SYNC SIG SYNC SIG and SYNC STAT SYNC STAT between the inverter s and the UNB 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 14 36 JU ETEK 3 3 4 Connectors UNB 23 0kVA L 1 1 3 3 2 2 o Figure 6 Rear view UNB 23 0 kVA 9 5 9 5 10 6 10 6 el 7 el 7 12 12 Connector X1 Connector X2 Figure 7 Connectors UNB 23 0 kVA Function Pins X2 Function Source 1 inverter Phase L1 1 Source 1 inverter Phase L1 2 Source 2 substitute mains Phase L1 2 Source 2 substitute mains Phase L1 3 Source 1 amp 2 neutral 3 No connection 4 UNB Output Phase L1 4 UNB Output Phase L1 5 DC supply L 24 48 108 216 VDC 5 n c 6 DC supply L 24 48 108 216 VDC 6 n c 7 Synchronization SYNC SIG 7 n c 8 Synchronization SYNC STAT 8 n c 9 Indication relay general fault NC 9 Remote switch ON 24 V 10 Indication relay general fault NO 10 n c 11 Indication relay general fault COM 11 n c 12 Sync
3. i UNB incl UNB WEB alwayson User Manual Page 4 36 Contents SAFETY INSTRUCTIONS amp NOTES TO ELECTRONIC WASTE DISPOSAL sese 6 2 GENERAL INFORMATION 7 2 l Example of USE ett tre du nre iR E a ic d xt de rna ie ER te E Pe eed acabe ta 7 2 2 Operating e 8 2 2 1 Inverter priority Factory default 2 8 2 2 2 MAINS Nele 8 3 TYPE LIST AND MAINIDATA os nu eine era 9 3 1 Optional equipment for UNB 10 3 2 Front View and Operating Elements se essescesesesesesseesesesesesnsneseseeeesenensscseeseseseeeesseseaestsnenesnensasaeeneseseeets 10 9 2 1 Front view UNBS 07 12 5KVA sects detent ettet era tainen te ened Pie ei depu 10 3 2 2 Front UNB23 0 30 0 40 0KVA 11 3 3 Electrical Connector Ssss enini se ea na aue spese sta 12 3 3 1 Input terminals aeania Eeee een 12 3 3 2 Output terminals oett e bac ed ede idan nen bec o en 12 3 3 3 Connectors UNB 5 0 and UNB 12 5KVA ssssssssssesesete tenete ttt te retten tette tenete ener 13 3 3 4 Connectors 23 0 ia iio Rete dee apto oe Eee deese AE ee Re Ge Db Ae e 14 3 3 5 Co
4. 5 Maintenance In general the device is maintenance free Exclusively the fan is a component consisting of moving parts Although it may be expected that the operating life of the fan is more than five years it is recommended to exchange the fan every five years By way of precaution a yearly inspection with following checks is recommended e Mechanical visual inspection e Removal of dust and dirt especially on radiator surfaces e Check for internal dust or humidity Attention Dust combined with moisture or water may influence or destroy the internal electronic circuits Dust inside the unit can be blown out with dry compressed air Avoid using too high air pressure The interval between the checks depends on ambient conditions of the installed module 6 Trouble shooting If a failure occurs in the system the LED Alarm is illuminated according to the adjustments in the customer menu item Configuration of Collective Failures see diagram customer menu The failures are shown in clear text modus in the display Alarm messages The display Alarm messages can be entered from the basic display by pressing ESC please also see section 4 4 3 Basic display Inv volt 230V ESC Alarm Messages x volt N D Source 1 fail curr kp Synchr error 26 04 07 14 29 Es Ubatt gt warning Figure 16 Display Alarm messages Alarm messag
5. 16 Figure 11 Cooling air flow direction esses eese tenerent nete tatnen entente tette tentent 17 Figure 12 Sample screenshot Net Connection esent retener tette nnne 19 Figure 13 LC Display Indication of measured values amp alarm messages sess 22 Figure 14 Diagram Customer 24 Figure 15 Diagram Customer menu continuation essent nennen tette 25 Figure 16 Display Alarm messages ssseseecssessseeteeesessseeesesesssececeneneneneececesseeseseseseanseecesaeseasececetetseeeeaeatananenenees 26 Figure 17 Dimensions 5 0 12 5 4 2 2 2 2 2 00000 6000 00000006000000000900 0 te tate 29 Figure 18 Dimensions UNB23 0 to 40 0KVA sse 29 Figure 19 Photo UNB23 0 to 40 0KVA iiie sese 30 Figure 20 Flow chart Service menu 1 32 Figure 21 Flow chart Service menu 2 22 34 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 6 36 1A Safety instructions amp notes to electronic
6. Adjustable range Adjustment steps Default values INV nom Key in the nominal output pow 1 0 to 5 0 KVA 0 1 kVA 2 5 kVA power er per inverter Mains voltage Key in the mains voltage value 200 to 250 V AC 1 0 V 230 V aduen Set the mains frequency 50 or 60 Hz 50 Hz Frequency Key in the tolerance range for 0 1 Hz to 2 0Hz 0 1Hz 40 5 Hz range synchronisation UNB current Key in the nominal UNB current 1 250A 1 0A 22 on the Batt cellcount Key numberof battery 12 to 200 1 en Voltage cell Key in the voltage per cell x 20 CAN Status Key in the CAN Status Master 0 Master 1 0 M S or Slave 1 to 31 Slave configur rel 2 Without function function relay 2 Without function Er Delay relay 2 Without function E Reset the UNB to default val yes no o ues 9 DCell count of the battery Pb 2 This menu item is inoperable 3With the exception of calibrated values Factory configured number of battery cells at the UNB Device name Nominal DC input voltage UNB is factory configured for UNBxxx 24 24V Lead acid battery 12 cells UNBxxx 48 48 V Lead acid battery 24 cells UNBxxx 60 60 V Lead acid battery 30 cells UNBxxx 110 108 V Lead acid battery 54 cells UNBxxx 220 216V Lead acid battery 108 cells 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6
7. ls 547Vdc Z i 0 5Aac DCS1 SYSTEM OUTPUT 229Vac 1 1Aac 50 0Hz FAULTS none Figure 12 Sample screenshot Net Connection NOTE A specific manual Net Connection is separately available 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 20 36 4 Handling 4 1 Storage The UNB must be stored in a dry dust free environment with a storage temperature according to specified data see section 7 4 2 Before commissioning 1 Battery system The static transfer switch UNB is delivered with factory configured defaults according to lead acid batteries with cell numbers according to nominal DC input voltage see the table below of the device If other battery systems with different cell numbers should be used the UNB must be reconfig ured before Device name Nominal DC input voltage UNB is factory configured for UNBxxx 24 24V Lead acid battery 12 cells UNBxxx 48 48 V Lead acid battery 24 cells UNBxxx 60 60 V Lead acid battery 30 cells UNBxxx 110 108 V Lead acid battery 54 cells UNBxxx 220 216 V Lead acid battery 108 cells 2 Number of used inverters and output power per one inverter must be configured in any case The adjust ment of the number of inverters has to be done in the Customer menu see section 4 5 1 If inverte
8. waste disposal Warning Because several components of operating electrical modules are charged by dangerous voltage the improper han dling of electrical modules may cause accidents involving electrocution injury or material damages e Operation and maintenance of electrical devices must be performed by qualified skilled personnel such as electricians in accordance with EN 50110 1 or IEC 60950 e Install the device only in areas with limited access to unskilled personnel e Before starting work the device must be disconnected from mains Make sure that the device is earthed e Do not touch connector pins as they can be charged with dangerous voltage up to 30 seconds after dis connection e Only spare parts approved by the manufacturer must be used The correct disposal of electronic waste is the responsibility to recycle discarded electronic equipment and is nec essary to achieve the chosen level to protect human health and the environment In the case of waste disposal of your discarded equipment we recommend to contact a professional waste man agement company 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 7 36 2 General information about the UNB Static transfer switches of the UNB model range are designed for nominal switching capacity of 5 0 kVA up to 40 0 kVA They are used for nearly interruptio
9. 1 00 UNB40 0 220 WEB 600 400 811 20 216 40 0 UNB modules with WEB connectivity Ethernet interface are available on request See section 7 for detailed technical data 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 10 36 3 1 Optional equipment for UNB assembly Article Article code Suitable for Mounting set 880 MEC MKT 01 UNB5 0 amp UNB12 5 model range Mounting set 880 MEC MKT 03 UNB23 0 UNB30 0 amp UNB40 0 model range 3 2 Front View and Operating Elements 3 2 1 Front view UNB5 0 12 5kVA IT 9 e AUNDE O NU wes ec MM T a zt Ethernet interface RJ45 8 pole Digital display Blind plug at UNB standard 0000000 7 LED indicators Two CAN connectors Operation keys Figure 2 Front view UNB 5 0 12 5 kVA with Ethernet interface NOTE The standard UNB is not equipped with an Ethernet interface Instead of the RJ45 connector is there a blind plug 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB always on User Manual Page 11 36 3 2 2 Front view UNB23 0 30 0 40 0kVA LU s Digital display Two CAN connectors LED indicators Ethernet inte
10. 1 1708 210 FAX 49 0 5221 1708 222 Email Info industrial eltek com Internet http www eltek com Please note No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording for whatever reason without the explicit written permission of Eltek Deutschland GmbH Changes and errors excepted 2012 ELTEK DEUTSCHLAND GmbH All rights reserved 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch J ELTEK l UNB incl UNB WEB alwayson User Manual Page 3 36 Revision history Revision 6 1 Date 2012 11 06 Revision Description of change Writer Date First edition Layout change minor text modifications UNB30 0 inserted Minor text modifications Remote switch ON added 2007 04 26 2008 01 14 2008 06 05 Minor text modifications at section 2 2 Operating modes 2010 05 14 service menus included minor layout changes Heading line corrected UNB WEB inserted Photos updated pinning of connectors X1 amp X2 pin 9 of UNB30 0 amp 40 0 corrected minor text modification 2012 01 12 2012 02 07 2012 11 06 New revision numbering X X introduced section Commissioning reworked Index of figures included section Appendix including 2011 05 30 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch
11. 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB always on User Manual Page 32 36 8 1 2 Flow chart Service menu 1 NOTE Service Menu 1 is code protected ES Basic display Inv volt 230V 1 Mains volt 226V Outp curr 30A 26 04 07 14 29 ENTER gt 3 seconds 2 cust menu ENTER Esc exit ESC A Keep pressing the down button v until the display shows the required service code cust menu ENTER ESC exit ESC Bl servicecode ENTER ESC 4 Service menu 1 gt INV nom power Service menu 1 5 Leafthrough A Mains voltage ENTER 2 INV nom power 5 Mains frequency 2 v frequency range nom pow 2 5kVA v UNB current ENTER h Batt cellcount Esc ange value voltage cell CAN Status M S Saves new value configur 2 do not save new value function relay 2 delay relay 2 Default values Figure 20 Flow chart Service menu 1 8 1 3 Selection of Service menu 1 To attain Service Menu 1 please follow the steps according to the flow chart see figure 20 1 Based on the basic display 1 press and hold ENTER for approx three seconds until the display shows cust menu 2 2 Press the down button W and keep pressing until you get servicecode xxx 3 3 Tip ENTER You are then in service m
12. 11 00 UNB5 0 110 WEB 600 050 711 20 108 5 0 UNB5 0 220 600 050 811 00 UNB5 0 220 WEB 600 050 811 20 216 5 0 UNB12 5 24 600 125 411 00 UNB12 5 24 WEB 600 125 411 20 24 12 5 UNB12 5 48 600 125 511 00 UNB12 5 48 WEB 600 125 511 20 48 12 5 UNB12 5 60 600 125 611 00 UNB12 5 60 WEB 600 125 611 20 60 12 5 UNB12 5 110 600 125 711 00 UNB12 5 110 WEB 600 125 711 20 108 12 5 UNB12 5 220 600 125 811 00 UNB12 5 220 WEB 600 125 811 20 216 12 5 UNB23 0 24 600 230 411 00 UNB23 0 24 WEB 600 230 411 20 24 23 0 UNB23 0 48 600 230 511 00 UNB23 0 48 WEB 600 230 511 20 48 23 0 UNB23 0 60 600 230 611 00 UNB23 0 60 WEB 600 230 611 20 60 23 0 UNB23 0 110 600 230 711 00 UNB23 0 110 WEB 600 230 711 20 108 23 0 UNB23 0 220 600 230 811 00 UNB23 0 220 WEB 600 230 811 20 216 23 0 UNB30 0 24 600 300 411 00 UNB30 0 24 WEB 600 300 411 20 24 30 0 UNB30 0 48 600 300 511 00 UNB30 0 48 WEB 600 300 511 20 48 30 0 UNB30 0 60 600 300 611 00 UNB30 0 60 WEB 600 300 611 20 60 30 0 UNB30 0 110 600 300 711 00 UNB30 0 110 WEB 600 300 711 20 108 30 0 UNB30 0 220 600 300 811 00 UNB30 0 220 WEB 600 300 811 20 216 30 0 UNB40 0 24 600 400 411 00 UNB40 0 24 WEB 600 400 411 20 24 40 0 UNB40 0 48 600 400 511 00 UNB40 0 48 WEB 600 400 511 20 48 40 0 UNB40 0 60 600 400 611 00 UNB40 0 60 WEB 600 400 611 20 60 40 0 UNB40 0 110 600 400 711 00 UNB40 0 110 WEB 600 400 711 20 108 40 0 UNB40 0 220 600 400 81
13. ERTER green Load fed by inverter LOAD ON MAINS green Load fed by mains Q ALARM pe General Alarm the assignment of the individual alarm messages is pro grammable 4 4 2 Operation keys The adjustment takes place with four front keys as described in the following Frontkeys Indication Function during menu item selection change to A Up previous item parameter gt during adjustment mode increase value during menu item selection change to next Y Down item parameter gt during adjustment mode decrease value ESC Escape gt leave the menu without changing gt call menu ENTER Enter gt leave menu with changing gt save parameter 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 22 36 4 4 3 LCD panel Indication of measuring values amp alarm messages At initial state the display shows the measuring values of the input sources AC output voltage of inverter mains voltage output current date and time additional frequencies of inverter and mains and battery voltage as well as the total DC current 1 Inv volt 230V Mains volt 226V Outp curr 30A 26 04 07 14 29 Alarm Messages A Source 1 fail Synchr error ___ gt warning v ESC I2 Inv freq 50 0Hz Mains freq 49 9Hz Batt volt 54 4V DC curr 126 0A
14. I3 Parameters Inv 1 Inp cwr 21 0 cur 40 Status Enter Parameters Inv 2 Inp cur 20 9A Outp curr 3 9A Status OK Enter Parameters Inv 6 Inp curr 21 1A Outp curr 4 04 Status OK Figure 13 LC Display Indication of measured values amp alarm messages Display 1 shows the initial state basic display The plain text of the basic display becomes visible after success ful start up procedure According to the diagram above see figure 13 you can select the displays 1 2 and 3 by pushing the keys A or V e If no inverter is registered display 3 is not available e If exactly one inverter is registered display 3 is visible without inverter number e If more than one inverter is registered it is possible to call the parameters input current output current and status of all connected inverters in succession by pressing ENTER The inverter number is shown in the first line of the display The display automatically reverts to display 1 if no key is pressed for a period of more than 30 seconds Display 4 Alarm messages indicates the current alarm status It can be selected from display 1 or 2 by press ing ESC By pressing the keys A or W you are able to leaf through the list of alarm messages if more than three entries are present there The display Alarm messages can be quit by pressing ESC again Basically factory s
15. N ELTEK always STATIC TRANSFER SWITCH UNB Incl description UNB WEB USER MANUAL ee 1 ane zr 3 i i so 0000000 Buil Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 2 36 About this manual IMPORTANT Read this manual very carefully before installing and commissioning the specified module This manual is a part of the delivered module Familiarity with the contents of this manual is required for installing and operating the specified module The rules for prevention of accidents for the specific country and the general safety rules in accordance with IEC 364 must be observed The function description in this manual corresponds to the date of publishing Technical changes and changes in form and content can be made at any time by the manufacturer without notice There are no obligations to update the manual continually The module is manufactured in accordance with applicable DIN and VDE standards such as VDE 0106 part 100 and VDE 0100 part 410 The CE marking on the module confirms compliance with EU standards 2006 95 EG low voltage and 2004 108 EG electromagnetic compatibility if the installation and operation instructions are fol lowed Supplier ELTEK DEUTSCHLAND GmbH BU Industrial Schillerstra e 16 D 32052 Herford 49 0 522
16. del range or MU1000C Following information is available via CAN Bus Status information of the UNB Availability of the connected inverters Availability of the substitute mains Output current of the UNB Device temperature Battery voltage at the UNB Frequency of source 1 and source 2 Input and output values of the connected inverters as follows Input current Input voltage Output current Output voltage Output frequency Device status okay not okay 00000 The values are measured at regular intervals via CAN Bus and can be selected at the display using the operation keys If the signal to one of the connected inverters is interrupted the failure message CAN failure is indicated and the number of the particular inverter is shown The numbering of the inverters automatically follows the CAN address es in ascending order which have been adjusted at the inverters The output voltage of the connected inverters is controlled by the UNB via CAN Bus according to the adjusted value mains voltage in the service menu 1 factory setting only practicable by skilled service personnel If the CAN Bus connection is inactive for more than five seconds the inverters switch automatically back to the internally stored default values The inverters are switched off by the UNB if Vbatt gt Vmax default value 2 5V x number of cells or Vbatt lt Vmin default value 1 7V x number of cells is detected by the UNB NOTE The i
17. e additionally The AC input connectors are located at the rear side of the unit Because of the limited load capacity of the con nector pins the UNB with an output power of 23 0 kVA is equipped with two connectors the 30 0 amp 40 0 kVA unit with three connectors with several contact pins connected in parallel accordingly In that case the related contact pins require an identical cable diameter and length This applies also to the AC output connection terminal which is described in the following Additional the UNB is equipped with a DC input for the connection to the battery of the system The internal elec tronic circuit of the UNB is supplied by mains and additionally by the battery redundancy The voltage level of the battery is monitored by the UNB the result is used for switching off the inverters in case of over under voltage The UNB measures and monitors the voltage level of both input sources real effective values and additional the frequencies The thresholds of those measuring values are programmable factory setting only practicable by skilled service personnel 3 3 2 Output terminals The unit is equipped with a plug in AC output connection terminal In case of short circuit the short circuit power is transferred to the UNB input which causes the fuse of source 1 or 2 to be blown The UNB should be overloaded only for short time see technical data In particular this is to be observed for the correct dimensioning of t
18. ease start again with the complete slide in process Mount the unit with 4 screws M4x12 CAUTION The unit is delivered without internal fuses Therefore the unit must be fused externally at the input source mains to protect the internal thyristors against damages in case of short circuit The pre fuse must be dimensioned according to the nominal switching ca pacity of the UNB In case of inverters in parallel operation the output of each inverter must be fused Connect the unit to the system according to section 3 3 Electrical connectors 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 21 36 4 4 Operation The operation and adjustment respectively of the unit takes place with keys located at the front side of the unit All main functional parameters and measuring values are displayed on the front side LCD panel text indicator as well as by LED indications They are described in the following 4 4 1 LED indication LED Indication Colour Operation mode STANDBY green The UNB is switched on and operational SOURCE 1 green E and frequency of source 1 priority source are within allowable SOURCE 2 green Voltage and frequency of source 2 substitute source are within allowa ble range SYNCHR green Inverters are synchronised with mains by UNB LOAD ON INV
19. enu 1 4 Pressing the buttons A you are able to leaf through the menu The arrow shows the menu item which is selectable by pressing ENTER The flow chart see figure 13 shows the selected menu item INV nom power 5 4 Changethe values pressing A or V 5 Tip ENTER to save the new values if you tip ESC the new values are not saved 6 ESC to return to the basic display For details concerning the adjustable parameters please see the table above Adjustable Parameters Service menu 1 Please ask your system supplier if the code is required 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 33 36 x always 8 2 Service men 2 8 2 1 Table adjustable parameters service menu 2 Menu item Function Adjustable range Adjustment steps Default values Operation s Inverter or mains Inverter mode Key in the priority source priority priority 0 Sollte Upper tolerance range of source 1 45 to 20 96 1 96 41596 voltage 0 Source 1 lt Lower tolerance range of source 1 5 to 20 1 15 voltage Pu Key in the time delay of source 1 0 5 to 4 0 ms 2 0 ms 0 Source 2 gt Upper tolerance range of source 2 5 to 20 1 20 voltage 0 Source 2 lt Lower tolerance range of source 2 5 to 2094 1 96 20 voltage s delay Ke
20. es Source 1 fail Source 2 fail Possible reason Mains voltage or frequency not ok Inverter voltage or frequency not ok Corrective action Check mains voltage inverter output voltage Check inverter output voltage mains voltage Synchr Error Inverter voltage is not synchronous to mains No mains voltage available or frequency of mains voltage is not stable out of frequency tolerance range Inverter fail Inverter failure CAN communication with one or more Inverters failed Inverter failure detected via CAN UNB overtemp UNB over temperature Check the air flow Check admissible ambient temperature UNB overload UNB output current to high Reduce load current INV overload Actual output current exceeds the Reduce load current or combined INV power increase INV power by additional inverter DC voltage low Battery voltage low Check DC voltage system DC voltage high Battery voltage high Check DC voltage system Ubatt warning Battery voltage warning level Check DC voltage system Ubatt gt warning Battery voltage gt warning level Check DC voltage system 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 27 36 QU ETEK 7 Technical Specifications Type designation Material code AC input Nominal input voltage source 1 2 Input voltage tolerance Input frequency ran
21. essing ENTER leaf through weekday year month day hour minute second A increase decrease value A list of all selectable individual collective failures CF is shown on the previous page A increase decrease time value do not save new value 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 25 36 ELTEK alwayson Continuation of the previous page Li A customer menu delay relay CF are customer menu p LCD p customer menu q gt LCD backlight language Softw version customer menu lt language Softw version lt customer menu delay relay time in sec 30 save new value do not save new value save new value do not save new value save new value do not save new value save new value do not save new value Figure 15 Diagram Customer menu continuation The final display provides information about the currently used firmware version A increase decrease V time value A increase decrease value A change Y adjustment A leaf through the languages 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 26 36 ETEK
22. etting all individual failures according to list of the selectable individual collective failures please see section 4 5 1 are enabled and therefore they are visible on the display in case of failure The alarm messages which shall not be visible on the display in case of failure have to be disabled in the customer menu please see the diagram Customer menu 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 23 36 4 5 Parameter adjustments The static switch UNB is delivered with factory configured defaults according to lead acid batteries with cell num bers according to nominal DC input voltage of the device see section 4 2 Before commissioning If other battery systems with different cell numbers should be used the UNB must be reconfigured before In this case reconfiguration takes place using service menu 1 and 2 see section 8 Appendix ATTENTION Configuration should be carried out only by qualified and skilled service personnel In the following sections the adjustable parameters in the customer menu accessible to each customer are de scribed Those are general adjustments such as number of used inverters indicated display language time delay values content of collective failure signal etc 4 5 1 Table Adjustable Parameters customer menu In the customer menu the parameters can be adj
23. ge Synchronization range Efficiency DC Voltage input Nominal battery voltage AC Output Nominal output voltage Nominal output power Overload capability Output frequency Switch transfer time Fusing Standard Features Monitoring functions LED indications Alphanumeric display Control keys Fault signalization Communication interface Remote switch ON Environmental Ambient temperature Climatic conditions Dust Max installation altitude Audible noise Please see section 3 Type List Main Data Please see section 3 Type List Main Data 220 230 240 Vac adjustable 20 96 48 to 52Hz 58 to 62 Hz adjustable 2 Hz in combination with inverters of series PWS the range must be adjusted to 0 5 Hz gt 99 96 Please see section 3 Type List Main Data 220 230 240 Vac adjustable switch over threshold 5 to 20 adjustable Please see section 3 Type List Main Data 1000 for 10 ms acc to the input frequency lt 3 ms External with rated current character gL voltage frequency of sources 1 and 2 synchronization mains in verter over temperature CAN communication lost battery voltage Operation green source 1 OK green source 2 OK green load on mains green load on inverter green synchronization green col lective alarm red LCD 4 x 16 characters background lighted V ESC ENTER Text message on LCD in addition 1 programmable i
24. he pre fuse The pre fuse must be dimensioned according to the nominal switching capacity of the UNB If the pre fuse is oversized the resultant delayed fuse tripping may destroy the internal thyristors of the UNB Operation of UNB in combination with inverters of series UNV The UNB measures and monitors the current of the consumer load In order to avoid a permanent overload of the inverters the UNB verifies the availability of the connected inverters and recalculates the allowed total current of the consumer load If one of the inverters in parallel operation fails the overload threshold value is automatically reduced accordingly 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 13 36 3 3 3 Connectors UNB 5 0 and UNB 12 5kVA U Figure 4 Rear view UNB 5 0 12 5 kVA 5 10 6 7 12 8 Figure 5 Connector X1 HAN K4 8 socket outlet 1 Source 1 inverter Phase L1 2 Source 2 substitute mains Phase L1 3 Source 1 amp 2 neutral 4 UNB Output Phase L1 5 DC supply L 24 48 108 216 VDC 6 7 8 9 DC supply L 24 48 108 216 VDC Synchronization SYNC SIG Synchronization SYNC STAT Remote switch ON 24 V 10 Indication relay general fault NO 11 Indication relay general fault COM 12 Synchronization SYNC GND
25. hronization SYNC GND 12 n c Function logic fault COM and NC closed OK COM and NO closed Is equal to the programming not inverted NOTE If the UNB works in combination with a single inverter or inverters in parallel operation it is necessary to con nect through the synchronization bus contacts SYNC GND SYNC GND SYNC SIG SYNC SIG and SYNC STAT SYNC STAT between the inverter s and the UNB 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 15 36 ETEK 3 3 5 Connectors UNB 30 0kVA amp UNB 40 0kVA 1 1 1 o o o 3 3 3 e e 2 2 2 o o e e Figure 8 Rear view UNB 30 0 amp 40 0 kVA 9 5 9 5 9 5 10 6 910 6 10 6 ei 7 11 7 11 7 12 12 28 12 es o o Connector X1 Connector X2 Connector X3 Figure 9 Connectors UNB 30 0 amp 40 0 kVA Function Pins 2 Function 1 Source 1 inverter Phase L1 1 Source 2 substitute mains Phase L1 2 Source 1 inverter Phase L1 2 Source 2 substitute mains Phase L1 3 Source 1 inverter Phase L1 3 Source 2 substitute mains Phase L1 4 n c 4 Source 1 amp 2 neutral 5 n c 5 DC supply L 6 Synchronization SYNC GND 6 DC supply L 7 Synchronization SYNC SIG 7 n c 8 Synchronization SYNC STAT 8 n c 9 n c 9 Rem
26. lay S1 source volt 2 gt source volt 2 lt time delay 52 Uimax Uimin 1 Uimin 2 Ubatt gt Ubatt lt load on mains e gt Service menu 2 ENTER operating mode gt INV priority Mains priority Saves new value do not save new value Figure 21 Flow chart Service menu 2 8 2 3 Selection of Service menu 2 5 A v Change value To attain Service Menu 2 please follow the steps according to the flow chart see figure 21 1 Based on the basic display 1 press and hold ENTER for approx three seconds until the display shows cust menu 2 2 Press the down button W and keep pressing until you get servicecode xxx 3 3 Tip ENTER You are then in service menu 2 4 Pressing the buttons A you are able to leaf through the menu The arrow shows the menu item which is selectable by pressing ENTER The flow chart see figure 14 shows the selected menu item operating mode 5 4 Changethe values pressing A or V 5 Tip ENTER to save the new values if you tip ESC the new values are not saved 6 ESC to return to the basic display For details concerning adjustable parameters see the table above Adjustable Parameters Service menu 2 Ask your system supplier if the code is required 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch J ELTEK UNB incl UNB WEB alway
27. load The output current exceeds the inverter power Battery voltage low Battery voltage high Battery voltage lt warning level Battery voltage gt warning level DC voltage low DC voltage high Ubatt lt warning Ubatt gt warning 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 24 36 always on 4 5 2 Diagram Customer menu The customer menu can be entered from the basic display by pressing ENTER for around three seconds and then press ENTER again Basic display Inv volt 230V A Inv 50 0Hz 4 Mains volt 226V Mains freq 49 9Hz Outp curr 30A Batt Enter customer menu configurat CF delay LED CF esc Kart ESC customer menu delay LED CF delay relay CF LCD contrast Continuation Next page Figure 14 Diagram Customer menu volt 54 4V customer menu L JINV count 00 save new value do not save new value customer menu time date Mo 07 05 14 11 06 33 save new value do not save new value configuration CF active configuration CF Ubatt gt warning active customer menu delay LED CF time in 30 save new value A increase decrease V value with pr
28. n free switching 4 ms between two AC sources usually inverter and substitute mains supply The static transfer switch synchronises frequency and phasing of mains with the invert ers Basically it is intended for operation in combination with inverters of series UNV and PWS as well but it also works with inverters of series INV Consequently AC consumers can be driven nearly without interruption if one of the two power sources fails All operation and indication elements are user friendly integrated in the front plate of the unit The UNB is equipped with rear side connectors and is designed to be mounted in a 19 compatible mount ing kit see section 3 1 NOTE UNB modules are available with Ethernet interface on request see section 3 Type list and section 3 6 UNB WEB as well 2 1 Example of use Inverter system with integrated static transfer switch UNB DC Bus Mains 230Vac x gt Inverter Inverter UNB Static transfer switch Manual bypass switch AC Output Figure 1 Single line diagram Example of use 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 8 36 2 2 Operating modes The static transfer switch UNB is designed for the operating modes inverter priority and mains priority alterna tively Source 1 is defined as priority source so
29. nnectors UNB 30 0kVA amp UNB 40 0KVA tenete netten 15 3 3 6 Pinning of the CAN bus connectors rt en peer sale 16 3 3 7 Pinning of the front side Ethernet connector RJ45 s sseeeenenetete tete ttntnteteneen 16 3 4 Cooling air flow direction essent nennen entente tenete tenente ener entren tenete 17 3 5 CAN Bus communication interface sssssssse seen tenete tenete entree teneret ennt entere enn 18 3 6 UNB WEB with ethernet net connection uueenseseeseseesensnsennensnnnnnennnnnnensnnnnnennnnnnnennnnnnensnnannennnnnnennnn 19 ss viii eines ees 20 4 1 5 adel 20 4 2 Before COMMISSIONING eek 20 4 3 20 LL DI RETIUM 21 4 4 1 LED indication 21 4 4 2 OperatioriKGys x onore oi co HD tee eaves nalen nen rennen 21 4 4 3 LCD panel Indication of measuring values amp alarm messages 22 4 5 Parameter adjustments eesesenene nente tenete nete tenente AEA tennan tette ener 23 4 5 1 Table Adjustable Parameters customer menu sese tnnt tnter 23 4 5 2 Diagram Customer Menu ss et eee al HER ERE ueri 24
30. nternally stored value output voltage of the inverter Vo must be the same for all of the inverters which are connected in parallel and the same value must be adjusted at the UNB Detailed information regarding the adjustment of Vo can be found in the user manuals of the particular inverters The CAN bus is not relevant for the synchronization of the inverters For safety reasons the synchronization takes place via the hard wired synchronization bus between inverters and UNB please see section 3 3 3 connectors et 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch J ELTEK UNB incl UNB WEB always on User Manual Page 19 36 3 6 UNB WEB with ethernet net connection The UNB is available on request with front side Ethernet interface 10 100 MB for remote control via HTTP WEB server SNMP SMTP und SNTP The UNB can be directly configured via PC Furthermore extensive remote control can be realized Pt ELTEK always SYSTEM NAME gt DESCRIPTION E qm 84 6Vdc gt e SAN 1 0Adc 0 3Aac pest IZ NY 2 Static 54 6 gt INV x Transfer 29 0 8Adc 2 230Vac SWitch 1 1Aac DCS1 en 30W v3 E 200vA N 54 6Vdc e coh s 1 0Adc WA gt jl 0 3Aac DCS1 54 6Vdc N e 5 50 0Hz pes 1 1Adc
31. ote switch ON 24 V 10 n c 10 Indication relay general fault COM 11 n c 11 Indication relay general fault NO 12 n c 12 Indication relay general fault NC Function logic fault COM and NC closed OK COM and NO closed Is equal to the programming not inverted NOTE If the UNB works in combination with a single inverter or inverters in parallel operation it is necessary to connect through the synchronization bus contacts SYNC GND SYNC GND SYNC SIG SYNC SIG SYNC STAT SYNC STAT between the inverter s and the UNB Pins X3 Function UNB Output Phase L1 UNB Output Phase L1 UNB Output Phase L1 n c n c n c n c n c n c n c n c n c 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 16 36 3 3 6 Pinning of the CAN bus connectors The UNB is equipped with two CAN connectors 1 and CAN2 at the front of the unit 123456 Figure 10a CAN bus connector socket outlet RJ11 6 pole Connection table Pin Signals CAN1 Signals CAN2 Designation 1 CAN_V DC Supply 8 to 15 V 2 CAN_V DC Supply 8 to 15 V 3 CAN_H Signal high 4 CAN_L Signal low 5 DC Supply Ground 6 V DC Supply Ground 3 3 7 Pinning of the front side Ethe
32. rface RJ45 8 pole Blind plug at UNB standard Operation keys Figure 3 Front view UNB 23 0 30 0 40 0 kVA with Ethernet interface NOTE The standard UNB is not equipped with an Ethernet interface Instead of the RJ45 connector is there a blind plug All operating elements and indicators are located at the front of the modules e 4operation keys A up V down ESC ENTER 7LEDindicators STANDBY SOURCE 1 SOURCE 2 SYNCHR LOAD ON INVERTER LOAD ON MAINS ALARM e Digital display For detailed information concerning operating elements LED indicators digital display and connectors please see the following chapters 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 12 36 3 3 Electrical Connectors 3 3 1 Input terminals The UNB is equipped with two AC inputs one for the inverter and the other for the substitute mains Both sources must have the same frequency and the same nominal voltage level Because there are no protection fuses integrated in the unit both sources must be protected externally If several inverters are connected in parallel the parallel connection of the inverter outputs has to be arranged externally gt NOTE If inverters of series PWS are connected in parallel one symmetry choke per each individual inverter must be daisy chained with the L phas
33. rnet connector RJ45 Pin Designation 1 TX Tranceive Data 2 TX Tranceive Data 3 RX Receive Data 4 n c Not used 5 n c Not used 6 RX Receive Data 7 n c Not used 8 n c Not used Figure 10b Front side Ethernet connector socket outlet RJ45 8 pole 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch J ELTEK UNB incl UNB WEB alwayson User Manual Page 17 36 3 4 Cooling air flow direction The unit is cooled by internal fan The airflow is from the front to rear side The fan is monitored and speed con trolled dependent on module temperature To provide sufficient air flow a minimum space see item A in figure 11 of 50 mm is required between the unit and the rear cabinet wall as well as an unobstructed supply of air to the front of the module Figure 11 Cooling air flow direction 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB alwayson User Manual Page 18 36 3 5 CAN Bus communication interface The UNB is equipped with serial data interface according to CAN Controller Area Network specification Two CAN Bus connectors are integrated in the front plate of the unit The UNB communicates via CAN Bus with the connected inverters and a possibly implemented supervision moni toring device of the UPC mo
34. rs of the PWS family should be used the number of inverters must be set to 0 The nominal output power of one inverter has to be configured in Service menu 1 see section 8 1 The factory preset defaults and threshold values and their adjustment ranges steps as well are listed in the Ser vice Menus please see section 8 Appendix If necessary reconfiguration of the UNB can be carried out using the adjustment keys Operation using adjustment keys and menu navigation as well is described in the following sec tions Adjustments at the UNB can be carried out if either the related DC voltage is connected to the DC input or AC volt age is connected to the AC input of the UNB 4 3 Commissioning NOTE Before commissioning make sure that the AC voltage and frequency as well of substitute mains and DC input voltage battery as well corresponds to the specification as specified on the type plate Make sure that the UNB is correctly configured according to the used battery system see section 4 2 above Before commissioning A mounting kit according to section 3 1 Optional equipment is necessary to mount the UNB into a 19 compati ble cabinet After unpacking the unit put it upon the rails and slide in the unit carefully over the rails until the module connector gets in touch with the backplane connector Increase the pressure until the unit fits in completely Please avoid too much pressure If the unit does not fit in pl
35. s on User Manual Page 35 36 Your notes 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx W ELTEK always Supplier ELTEK DEUTSCHLAND GmbH BU Industrial SchillerstraBe 16 D 32052 Herford 49 0 5221 1708 210 FAX 49 0 5221 1708 222 Email Info industrial eltek com Internet http www eltek com 2012 ELTEK DEUTSCHLAND GmbH All rights reserved
36. solated collective failure alarm relay max contact load 0 25 Vmax lt 150 lt 0 5 Vmax 100 Voc CAN Bus for communication with inverters of type UNV and INV UNB with Ethernet interface available by request One RJ45 for remote control via HTTP Web server SNMP SMTP and SNTP available operation 20 to 55 C storage 40 C to 85 C acc to IEC 721 3 3 class 3K3 3Z1 3B1 3C2 3S2 3M2 lt 1 mg m 1500 m lt 45 dBA at 1 m distance 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 28 36 JU ETEK Mechanical Type of construction Cooling Surfaces Dimensions W H D Weight Electrical connectors Applicable standards Type of enclosure protection class CE conformity Compliance to EMC standards Compliance to safety standards 19 compatible rack acc to DIN 41494 forced cooling with internal fan temperature regulated monitored powder coating RAL 7035 front panel only black print constructive parts anodized metal UNB 5 12 5kVA 483 133 360 mm 3HU UNB 23kVA 40kVA 483 177 460 mm 4HU UNB 5 12 5 approx 12 6 kg UNB 23kVA approx 13 2 kg UNB approx 15 8 kg UNB 40kVA approx 16 9 kg Front side 2 x CAN Bus RJ11 UNB with Ethernet interface 1 x socket outlet RJ45 8 pole Rear side AC inputs ou
37. tente tentent tenete entente tnter tete tenente entente tenente nens 34 8 2 3 Selectio i of Service Menu 2 erp Rope 34 Megsosm E 35 Index of figures Figure 1 Single line diagram Example of use eese eene tete tete 7 Figure 2 Front view UNB 5 0 12 5 kVA with Ethernet interface ccscssssssesecececeseseseeceeeeeeeseeeeeeeeeeceeeseeataes 10 Figure 3 Front view UNB 23 0 30 0 40 0 kVA with Ethernet interface sss 11 Figure 4 Rear view UNB 5 0 12 5 KVA 13 Figure 5 Connector X1 HAN K4 8 socket outlet isses 13 Figure 6 Rear view UNB 23 0 14 Figure 7 Connectors UNB 23 0 14 Figure 8 Rear view UNB 30 0 8 40 0 15 Figure 9 Connectors UNB 30 0 8 40 0 te tete 15 Figure 10a CAN bus connector socket outlet RJ11 6 pole sese 16 Figure 10b Front side Ethernet
38. tput DC input and signalization UNB 5kVA 12 5kVA 1 x HAN K4 8 UNB 23kVA 2 x HAN K4 8 UNB 40 3 x HAN K4 8 IP20 front panel 1 acc to EN 60950 electr yes EN55011 55022 class B EN61000 4 part 2 5 acc to EN60950 1 00100 T410 00110 EN60146 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 29 36 JU ETEK 7 1 Dimensional Drawings UNB5 0 12 5 kVA 1494 133 Figure 17 Dimensions UNB5 0 12 5kVA 7 2 Dimensional Drawings UNB23 0kVA UNB30 0kVA amp 40 0 kVA 483 mm 460 mm Figure 18 Dimensions UNB23 0 to 40 0kVA 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx Static Transfer Switch ELTEK UNB incl UNB WEB alwayson User Manual Page 30 36 7 3 Photo UNB5 0 12 5kVA See first cover page please 7 4 Photo UNB23 0 30 0 40 0kVA Figure 19 Photo UNB23 0 to 40 0kVA 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 31 36 ELTEK always 8 Appendix service menus 8 1 Service menu 1 8 1 1 Table Adjustable parameters service menu 1 Menu item Function
39. urce 2 is defined as substitute source Source 1 feeds the load as long as source 1 works faultlessly NOTE The priority source is programmable using service menu 2 see section 8 Appendix 2 2 1 Inverter priority factory default setting The unit s default setting is Inverter priority In this case the inverters are source 1 whereas mains is source 2 The UNB switches to source 2 if source 1 fails or is overloaded i e distortions by short circuit behaviour or over load 2 2 2 Mains priority At operating mode mains priority AC mains works as source 1 and the inverter s as source 2 At this configuration the UNB remains at mains operation whereas the inverter remains synchronized to mains If mains error occurs the UNB switches to inverter operation 2012 Eltek Deutschland GmbH Eltek UM UNB incl WEB E R6 1 docx Static Transfer Switch UNB incl UNB WEB User Manual Page 9 36 x ELTEK alwayson 3 Type list and main data UNB standard Type designation Material code UNB WEB Type designation Material code Battery voltage Voc Rated switching capacity kVA 230Vac UNB5 0 24 600 050 411 00 UNB5 0 24 WEB 600 050 411 20 24 5 0 UNB5 0 48 600 050 511 00 UNB5 0 48 WEB 600 050 511 20 48 5 0 UNB5 0 60 600 050 611 00 UNB5 0 60 WEB 600 050 611 20 60 5 0 UNB5 0 110 600 050 7
40. usted according to the table as follows Default value factory Menu item Functions setting INV count Key in the number of the connected inverters 0 15 0 Time Date Adjustment of the real time clock Selection switching active inactive of individ All individual Configuration CF ual failures for the collective failure signalisa failures All enabled tion General Alarm LED and Relay Delay LED CF LED time delay of the collective failure signal 1 60 sec 30 Delay Relay CF Time delay of the collective failure relay 1 60 sec 30 LCD contrast Contrast adjustment of the display 0 255 220 LCD backlight Background illumination On off On English German Language Selection of the language Polish Swedish English Italian Softw version Shows the current firmware version Read only If the UNB works together with inverters of type PWS the INV count must be set to 0 because the PWS is not equipped with CAN interface Otherwise the failure message Inverter fail would be generated List of the selectable individual collective failures CF Alarm message Meaning Source 1 fail Voltage or frequency of source 1 not OK Source 2 fail Voltage or frequency of source 2 not OK Synchr Error Mains and INV voltage are not synchronous Inverter fail Inverter error UNB overtemp UNB over temperature UNB overload UNB output current too high INV over
41. y in the time delay of source 2 0 5 to 4 0 ms Dame 4 0 ms Uimax ed ihe over voltage Switch oft 2 00 to 3 00V cell 991V 2 50 V cell diina Keyin iheunger voltage switchoff SPY 1 70 V cell Uae 1 90 V cell again value Ubatt gt Key in the over voltage warning value 2 20 to 2 50 V cell 0 01 V 2 35 V cell Ubatt lt 1 70 to 2 10 001 1 90 V cell Load 4 Key i Switch load stationary on vexing mains mains Number of cells is set at service menu 1 DPlease note Uimin 1 lt Uimin 2 hysteresis 4Only suitable for service Not stored in EEPROM 2012 Eltek Deutschland GmbH Eltek_UM_UNB_incl WEB_E_R6 1 docx ELTEK Static Transfer Switch UNB incl UNB WEB User Manual Page 34 36 ELTEK alwayson x 8 2 2 Flow chart Service menu 2 NOTE 1 ENTER 2 Keep pressing the down button until the display shows the required service code 3 Service Menu 2 is code protected Basic display Inv volt 230V Mains volt 226V Outp curr 30A 26 04 07 14 29 gt 3 seconds cust menu ENTER exit ESC ESC A v cust menu ENTER exit ESC 1 servicecode ESC ENTER 4 Leaf through A the menu ESC Service menu 2 gt operating mode source volt 1 gt source volt 1 lt time de
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