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Universal Bypass Switch Unit

UNB

Operation Manual

UNB2357E / Page 4 (34)

Contents

1.General ................................................................... 5

2.Type Range .............................................................. 6

3.Storage ................................................................... 6

4.Installation ............................................................. 7

5.Operation ................................................................ 9

6.Functions ............................................................... 10

6.1 Schematic-diagram ............................................. 10

6.2 Electric function .................................................. 10

6.2.1 General ........................................................ 10

6.2.2 Function-principles ......................................... 10

6.2.3 Input terminals............................................... 11

6.2.4 Output terminals ............................................ 11

6.2.5 Operating modes ........................................... 11

6.2.5.1 Inverter priority configuration...................... 12

6.2.5.2 Mains-priority configuration......................... 12

6.3 Monitoring/Adjustment ........................................ 12

6.3.1 Input “over-voltage monitoring “; source 1

(priority-source)........................................... 12

6.3.2 Input “over-voltage monitoring”; source 2

(substitute-sources) ..................................... 12

6.3.3 STATIC BYPASS SWITCH SBS-Programming ...... 12

6.3.4 Settings of analogous-sensitivity ...................... 13

6.3.5 Indication ..................................................... 13

6.3.6 CAN-Interface / serial interfaces ...................... 13

6.3.7 Parameter adjustment / Menu items.................. 14

6.3.7.1 Adjustable parameters................................ 14

6.3.7.2 Measuring indication / Main menu structure... 15

6.3.7.3 Parameter adjustment / Customer menu....... 16

7. Synchronisation ................................................... 21

8. Connections .......................................................... 23

8.1 Pinning UNB 5.0, 12.5kVA ..................................... 23

8.2 Pinning UNB 23.0kVA ........................................... 24

8.3 Pinning UNB 30.0, 40.0kVA ................................... 26

8.4 Pinning - CAN-Bus................................................ 27

8.5 Pinning - Interface RS232 ..................................... 28

9. Maintenance ......................................................... 28

10. Technical data .................................................... 29

10.1 General technical data ....................................... 29

10.2 Dimensional Drawings UNB 5.0 / 12.5kVA ............. 31

10.3 Dimensional Drawings UNB 23.0kVA ..................... 32

10.4 Dimensional Drawings UNB 30.0 / 40.0kVA............ 33

10.5 Photograph UNB 5.0 / 12.5 kVA ........................... 34

10.6 Photograph UNB 23.0 / 30.0 / 40.0kVA ................. 34

Содержание UNV-F

Страница 1: ... PSSA P EN Based on Replaces Scale Doc type Format NTS DOC A4 Responsible Department PSSA P UPS Operations and Maintenance Manuals Take over Department ADDC Language 0 63 Supplier Sheet No N 4 2 1 8 R A 8 4 0 0 M 3 2 4 6 0 0 First issue FG ACh 2011 06 29 DESCRIPTION DRAWN CHECKED DATE REV ...

Страница 2: ...Primary Switch Mode Inverter UNV F OPERATION MANUAL BHB UNV F D65 1050 HB001 ...

Страница 3: ...a nent actualization of this documentation The switch mode inverter will be manufactured according to valid DIN and VDE standards such as VDE 0106 part 100 and VDE 0100 part 410 The CE label on the modules con firms the compliance with EU standards for 73 23 EWG low voltage and 89 339 EWG electromagnetical compatibility if the installation and operation rules are observed All systems and component...

Страница 4: ...lation of output voltage 13 6 2 5 RFI Suppression 13 6 3 Monitoring 13 6 3 1 Input voltage monitoring 13 6 3 2 Output voltage monitoring 14 6 3 3 Monitoring of Overheating 14 6 3 4 Signals 14 6 3 5 Adjustment of output parameters and monitoring thresholds 14 6 3 6 CAN Interface 20 7 Operation in parallel 20 8 Connectors 21 8 1 Connector F type 22 8 2 Connector CAN Bus 21 9 Maintenance 23 10 Troubl...

Страница 5: ...ies are available for delivery UNV F are hot plugable modules with rear side connectors Only the communication wire CAN bus is connected on the front The inverter is controlled and monitored by internal microprocessor All main functional parameters are adjust able with front side operating keys and are indicated with digital displays Due to the excellent overall efficiency see technical data the u...

Страница 6: ...ransfer is nearly without voltage inter ruption After problem solving the unit switches back to in verter operation automatically In case of mains preselection mode the inverter will take over the load if mains is not pre sent out of limits or badly distorted The primary source is programmable on static switch unit For the UNB a separate manual is available Battery AC distribution UNV UNV DC Input...

Страница 7: ...83 133 360 48 3 3F C65 1054 48 60 230 3300 483 133 360 48 5 0F C65 1055 48 60 230 5000 483 133 440 108 1 2F C65 1061 108 230 1200 483 133 360 108 1 8F C65 1062 108 230 1800 483 133 360 108 2 5F C65 1063 108 230 2500 483 133 360 108 3 3F C65 1064 108 230 3300 483 133 360 108 5 0F C65 1065 108 230 5000 483 133 440 Available options and accessory parts Additional connector 19 sliding bar connector fa...

Страница 8: ... such as ambient temperature or relative humidity highly dusty or aggressive chemical atmosphere is not al lowed dew and dust together can cause short circuits on printed circuits sufficient air cooling is required especially when mount ing in cabinets with several 19 subrack levels Check DC voltage before connecting the inverter observe nominal values on type label For connection of DC input and ...

Страница 9: ...as specified is recommended For instance a high voltage loss on battery wires can decrease the backup time Following installation rules should be observed single inverter check system wiring polarity of DC supply line check that inverter is switched off connect DC input with open DC bushbar fuses connect AC loads close DC bushbar fuses switch on the unit with front side MCB switch on load inverter...

Страница 10: ...age low input voltage Adjusted monitoring threshold inverter switches off see pt 6 3 5 Io red Output current to high short circuit or overload on output T red lights Continously overheating of in verter by overload light Blinks poor cooling Inverter switches off delayed ALARM red Collective failure delay time of relay alarm adjustable relay contact on X1 all single errors included Adjustment of th...

Страница 11: ...chronizes all other units ATTENTION The unit which transmits the synchonization signal to synchronization bus at first will be the master If this master unit is disturbed or switched off another unit overtakes the master function In systems with static bypass switch SBS the inverters will be synchronized by SBS unit Picture 5 1 Front view UNV F ...

Страница 12: ...Primary Switch Mode Inverter UNV F Operation Manual Page 11 28 BHB UNV F D65 1050 HB101 6 Functions 6 1 Schematic block diagram Picture 6 1 Schematic Block Diagramm Inverter UNV F type ...

Страница 13: ...ock to store the DC voltage The DC DC converter modulates the input current to suppress the input AC 5 Pulse width modulated inverter bridge 20kHz with IGBT s to convert the DC voltage into an AC voltage with high frequency and a stable amplitude 6 Monitoring system for input output and internal parame ters 7 Output relay necessary for paralleling operation 8 Output circuit breaker MCB mechanicall...

Страница 14: ...c It is possible to increase the load to 130 of nominal load for a short period only 6 2 4 Dynamic regulation of output voltage For load steps between 10 and 100 Inom 100 and 10 Inom the dynamic voltage deviation is 3 and is regulated in 1 5 ms to static accuracy 6 2 5 RFI Suppression Inverter type UNV fulfills the standards EN 55011 55022 class 6 3 Monitoring 6 3 1 Input voltage monitoring The in...

Страница 15: ...ing of Overheating Signal T red LED if the internal temperature of the inverter is higher than the adjusted threshold High ambient temperature poor cooling permanent overload appr 20 25 or a defective fan can cause overheating of the unit The inverter switches off with an adjustable delay time The inverter switches on again if the temperature is lower than the adjusted switch on threshold Addition...

Страница 16: ...be carried out 1 press both keys UP DOWN together for a short time the inverter changes to adjustment mode 2 press the key UP or DOWN to change the adjustment parameter see also table on bottom 3 press both keys UP DOWN together for a short time the inverter changes to value change mode 4 press the key UP or DOWN to change the adjustment value 5 press both keys UP DOWN together for a short time th...

Страница 17: ...on Manual Page 16 28 BHB UNV F D65 1050 HB101 a Standard display during operation monitoring of in out put parameters Output voltage Output current Input voltage Input current Output frequency device temperature Restart and selftest Input power ...

Страница 18: ...peration Manual Page 17 28 BHB UNV F D65 1050 HB101 For switching to the adjust menu please press both buttons for 3 sec see next page Output Complex power Output Active power Power factor of the load Hardware Reset Press both keys short ...

Страница 19: ... UNV F Operation Manual Page 18 28 BHB UNV F D65 1050 HB101 Adjust the values and Thresholds as follows Output voltage Output undervoltage Output overvoltage Input overvoltage Input undervolta ge restart voltage Input overvoltage ...

Страница 20: ...0 V Monitoring threshold of output voltage high Uo 253 V AC 230 270 1 0 V switch off threshold input voltage high Ui 48V 75 V DC 108V 130 0 80 0 135 0 1 V 0 25 switch off threshold input voltage low Ui 48V 41 V DC 108V 92 41 80 90 110 0 1 V 0 25 switch on again threshold input volt age low Ui 48V 45 V DC 108V 96 41 80 90 110 0 1 V 0 25 When adjusting thresholds Uo Uo with up down keys the moving d...

Страница 21: ...sible Cable length must not exceed 30m 7 Operation in parallel ATTENTION Before starting several units in parallel it is im portant to check the output frequency and voltage on each unit without any connections between the units In the next step it has to be checked that the connections of the SYNC BUS wires between the modules are correct ATTENTION The unit which transmits the synchonization sign...

Страница 22: ...e failure COM3 11 Collective failure OK make contact NO 12 Collective failure error back contact NC 1 In parallel operation the contacts SYNC GND and SYNC SIG of each inverter has to be wired The allowed load for relay contacts is Umax 110 V DC I 0 45 A DC Umax 60 V DC I 1 A DC 2 In operation with an UNB it is necessary to connect adi tional to SYNC GND SYNC SIG the contacts SYNC STAT between all ...

Страница 23: ... contact NO 14 Collective failure error back contact NC 15 SYNC SIG6 synchronbus 50Hz signal 16 SYNC STAT5 synchronbus state lines 4 Potentialfree relay contact with safe electrical separation to the AC and DC connectors COM and back contact in case of failure closed 5 In operation with an UNB it is necessary to connect adi tional to SYNC GND SYNC SIG the contacts SYNC STAT between all of the inve...

Страница 24: ...d 9 Maintenance In general the inverter is maintenance free A yearly inspection with following checks is recommended Correct fan operation Mechanical inspection Removal of dust and dirt especially on radiator surfaces Check for internal dust or humidity Attention Dust together with dew or water can destroy the internal circuits by short circuit Dust inside the unit can be blown out with dry compre...

Страница 25: ...g LED s Ui or Ui on short circuit or overload on output output fuse O K If no error was found but the module still does not operate contact your sales agent or the producer service department 10 2 Distortion of output voltage overload on output check and reduce the load big inrush current of load distortions by load steps or current peaks adjustment of voltage value Uo not correct adjust the corre...

Страница 26: ... 65Hz Nominal output power acc type list cos phi 0 8 Output power factor range 0 5ind 1 0 5cap Total harmonic distortion 2 for linear load Overall efficiency up to 92 for 50 100 load Crest factor 3 RFI suppression immunity CE label EN50081 1 EN55011 55022 class EN50082 2 EN61000 4 part 2 3 4 5 Isolation voltage acc EN60950 Reflected input voltage ripple 1 8mV psophometric CCITT A filter Dynamic ba...

Страница 27: ... max 7 devices load sharing appr 5 Inom by degressive output characteristic Audible noise 40dB A at 1m distance Dimensions acc to type list Mechanical construction acc VDE 0160 edition 5 88 chapter 7 2 2 Protection class IP20 Cooling 1 2kVA 5 0kVA speed controled fan with monitoring Ambient temperature operation 0 40 C storage 30 65 C Max installation altitude 1000m a s l Humidity class F Surfaces...

Страница 28: ...Primary Switch Mode Inverter UNV F Operation Manual Page 27 28 BHB UNV F D65 1050 HB101 delivery input and output connec tor ...

Страница 29: ...nverter UNV F Operation Manual Page 28 28 BHB UNV F D65 1050 HB101 12 Dimensional Drawings Picture 12 2 Outlook drawing Inverter UNV 48 5 0F Picture 12 1 Outlook drawing Inverter UNV F 1 2kVA 3 3kVA UNV 60 5 0F UNV 108 5 0F ...

Страница 30: ...Leimenstoll 22 08 06 Rev 0 UNB_2357E BHB UNB D68 1000 HB101 Universal Bypass Switch Unit UNB OPERATION MANUAL ...

Страница 31: ...ermanent actualisation of these documents The switch mode inverter will be manufactured according to valid DIN and VDE standards such as VDE 0106 part 100 and VDE 0100 part 410 The CE label on the modules confirms the compliance with EU standards for 73 23 EWG low voltage and 89 339 EWG electromagnetic compatibility when installation and operation rules are observed All systems and components are ...

Страница 32: ...upplier FAX Email Internet http IMPORTANT Repetition copying and or taking possession of this operation and maintenance manual even in extracts with electronic or mechanical means requires the written prior permission of the SUPPLIER Copyright ISG 2002 All rights reserved ...

Страница 33: ... 3 3 STATIC BYPASS SWITCH SBS Programming 12 6 3 4 Settings of analogous sensitivity 13 6 3 5 Indication 13 6 3 6 CAN Interface serial interfaces 13 6 3 7 Parameter adjustment Menu items 14 6 3 7 1 Adjustable parameters 14 6 3 7 2 Measuring indication Main menu structure 15 6 3 7 3 Parameter adjustment Customer menu 16 7 Synchronisation 21 8 Connections 23 8 1 Pinning UNB 5 0 12 5kVA 23 8 2 Pinnin...

Страница 34: ...tion free switching between two AC sources usually inverter and substitute mains input and is intended for the operation for both inverter type ranges UNV and PWS Consequently AC consumer can be driven without interruption if one of the two power sources fails The STATIC BYPASS SWITCH SBS is in a ready to connect configuration designed 19 unit with reverse side preinstalled high voltage connection...

Страница 35: ...UNB 40 0 48 68 1015 48 40 0 UNB 5 0 108 68 1021 108 5 0 UNB 12 5 108 68 1022 108 12 5 UNB 23 0 108 68 1023 108 23 0 UNB 30 0 108 68 1024 108 30 0 UNB 40 0 108 68 1025 108 40 0 UNB 5 0 216 68 1031 216 5 0 UNB 12 5 216 68 1032 216 12 5 UNB 23 0 216 68 1033 216 23 0 UNB 30 0 216 68 1034 216 30 0 UNB 40 0 216 68 1035 216 40 0 3 Storage The unit is an electronic precision unit and must be treated with ...

Страница 36: ... to avoid a damage to the thyristor switch in the case of short circuit The signalling unit is connected via the X2 plug in terminal as well as the frontal located CAN BUS interface The STATIC BYPASS SWITCH SBS works from a power range of 12 5kVA with a temperature controlled fan cooling with supervision The inflow temperature must not exceed 40 Celsius Cubicle installations have to be designed fo...

Страница 37: ...s synchronous cable CAN BUS if used Checking that the inverter as well as the STATIC BYPASS SWITCH SBS is switched off Power supply sources 1 and 2 in disconnected voltage free condition with opened fuses of the STATIC BYPASS SWITCH SBS to be connected AC consumer load to be connected Fuses to be closed Switches on the STATIC BYPASS SWITCH SBS via front key Adjustment of the real time clock Invert...

Страница 38: ...line present green Voltage and frequency of source 1 preferred source in limit Source 2 online present green Voltage of source 2 substitute source available Synchronisation green SBS and inverter are synchronous or STATIC BYPASS SWITCH SBS synchronised with mains see Synchronisation process Load at inverter green Load fed by inverter Load at mains green Load fed by mains General fault alarm red Ti...

Страница 39: ...thin 0 5 3 ms depending on the adjusted sensitivity tolerance The return switching takes place interruption free in the zero crossing of the current In the case of a synchronisation disturbance between mains and inverter s the switch back always takes place in the current zero passageway 6 2 2 Function principles The schematic diagram picture 6 1 shows a functional diagram of the STATIC BYPASS SWI...

Страница 40: ...hase The plug in connectors for the AC input are to be found on the rear side of the unit in the full 19 unit version in the cassette version they are located on the front In the 100A unit a parallel circuit of 2 contacts are required for reasons of the contact loading capacity In this case both contacts require an identical cable diameter and length This applies also to the subsequently described...

Страница 41: ...ltage is variable and adjustable within a certain area see settings of the analogous sensitivity The voltage variation for the supervision decides the attitude in the parametric menu The indication of this monitoring function takes place over the LED source 1 6 3 2 Input over voltage monitoring source 2 substitute sources For the substitution source only the presence of the voltage is monitored no...

Страница 42: ...ammable indication relay is available The allowable relay contact loads are as follows U max 110 V DC I zul 0 45 A DC U max 60 V DC I Zul 1 A DC U max 24 V DC I zul 8 A DC 6 3 6 CAN Interface serial interfaces Via the front located connectors for the data network via CAN Bus the communication of the STATIC BYPASS SWITCH SBS with the connected inverters and a possible implemented supervision monito...

Страница 43: ...gle failures all Delay LED SA LED time delay of collective failure signal 1 60sec 30 Delay Rel SA Time delay of collective failure relay 1 60sec 30 LCD contrast Contrast adjustment of display 0 255 220 Illumination Background illumination On off on Language Selection of language german english italian schwedish polish german For the configuration of the system during commissioning adjustments of s...

Страница 44: ...z Mains freq 49 9Hz Batt vlt 54 4V DC curr A Inv vlt 230V Mains vlt 226V Outp Curr 98A 27 09 99 17 49 Parameter unv 1 Inp curr A Outp curr A State failure Customer menu ENTER Cancel ESC ESC Parameter unv 2 Inp Curr A Outp curr A State failure Parameter unv x Inp Curr A Outp Curr A State failure 3s ESC see 6 3 7 3 Main menu structure ...

Страница 45: ...lay CF LCD contrast LCD backlight Language Softw version select item ESC Customer menu time date so 27 09 99 16 09 00 Customer menu time date so 27 09 99 16 09 00 Customer menu time date so 27 09 99 16 09 00 Customer menu time date so 27 09 99 16 09 00 Customer menu time date so 27 09 99 16 09 00 Customer menu time date so 27 09 99 16 09 00 ESC increase decrease parameter Date Time adjustment ...

Страница 46: ... Configure CF Delay LED CF Delay relay CF LCD contrast LCD backlight Language Softw version select item configuration sa source 1 error active configuration sa source 2 error active configuration sa synchron error active configuration sa univert failure active configuration sa temp high active configuration sa unb overload active ...

Страница 47: ...ive configuration sa Ubatt active ESC Configuration of collective failure signal see 6 3 7 2 Customer menu INV count Time date Configurat CF Delay LED CF Delay relay CF LCD contrast LCD backlight Language Softw version select item ESC Customer menu Delay LED CF 30 s Delay time of collective failure LED increase decrease time ESC do not save new value save new value ...

Страница 48: ...7 1 Customer menu INV count Time date Configure CF Delay LED CF Delay relay CF LCD contrast LCD backlight Language Softw version select item ESC Customer menu LCD contrast 220 LCD contrast adjust Increase or decrease contrast ESC do not save new value save new value see 6 3 7 2 select item ESC Customer menu LCD contrast on Rear Light Rear light on off ESC do not save new value save new value Custo...

Страница 49: ...light Language Softw version select item ESC Customer menu language deutsch Select language change language ESC do not save new language save new language see 6 3 7 2 Customer menu INV count Time date Configure CF Delay LED CF Delay relay CF LCD contrast LCD backlight Language Softw version select item ESC Customer menu software version V10 01 6 09 99 Show software version ESC ...

Страница 50: ...r indication LED shows synchronisation in progress SBS switches the consumer load to inverter output LED load at inverter signal Connection of the substitute mains After a postponement from approximately 5 seconds SBS waits for a stabilised substitute mains the SBS tries to synchronise on the substitute source frequency During this action the LED Synchronisation signal is off After the successful ...

Страница 51: ...on of the SBS with the substitute source all units work with the frequency of the substitute source SYNC BUS carries the substitute frequency and the LED synchronisation lights according to the difference of the Monitoring signal internal PLL to the actual sine wave of the voltage the synchronisation requires up to 30 sec SBS switches consumer load to inverter output LED load on inverter lights ...

Страница 52: ... DC supply L 24 48 108 216V DC 6 DC supply L 24 48 108 216V DC 7 Synchronisation SYNC SIG 8 Synchronisation SYNC STAT 9 Indication relay general fault NC 10 Indication relay general fault NO 11 Indication relay general fault COM 12 Synchronisation SYNC GND logic fault COM and NC closed OK COM and NO closed In operation with an UNB it is necessary to connect aditional toSYNC GND SYNC SIG the contac...

Страница 53: ...upply L 24 48 108 216V DC 6 DC supply L 24 48 108 216V DC 7 Synchronisation SYNC SIG 8 Synchronisation SYNC STAT 9 Indication relay general fault NC 10 Indication relay general fault NO 11 Indication relay general fault COM 12 Synchronisation SYNC GND logic fault COM and NC closed OK COM and NO closed In operation with an UNB it is necessary to connect aditional toSYNC GND SYNC SIG the contacts SY...

Страница 54: ... 1 3 2 4 5 6 7 8 9 10 11 12 Pin Name 1 Source 1 inverter Phase L1 2 Source 2 substitute mains Phase L1 3 No connection 4 UNB Output Phase L1 5 No connection 6 No connection 7 No connection 8 No connection 9 No connection 10 No connection 11 No connection 12 No connection Picture 8 3 Pinning X2 UNB 23 0kVA ...

Страница 55: ...connection In operation with an UNB it is necessary to connect additional to SYNC GND SYNC SIG the contacts SYNC STAT between all of the inverters and the UNB connector X2 HAN K4 8 socket outlet see picture 8 4 l o g i c f a u l t COM and NC closed Pin Name 1 Source 2 substitute mains Phase L1 2 Source 2 substitute mains Phase L1 3 Source 2 substitute mains Phase L1 4 Source 1 2 neutral 5 DC suppl...

Страница 56: ...ase L1 4 No connection 5 No connection 6 No connection 7 No connection 8 No connection 9 No connection 10 No connection 11 No connection 12 No connection 8 4 Pinning CAN Bus Connector X5 X6 RJ45 6pol Pin Signal CAN1 Signal CAN2 Name 1 CAN_V DC Supply 8 15V 2 CAN_V DC Supply 8 15V 3 CAN_H Signal high 4 CAN_L Signal low 5 CAN_V DC Supply Ground 6 CAN_V DC Supply Ground Picture 8 5 Pinning X5 X6 CAN ...

Страница 57: ...rtheless it is recommended that to ensure continuous availability and reliability visual inspection and function tests should take place in regular intervals During visual inspection to be checked is whether mechanical damages or external particle is noticed hazardous filth or dust particles are existing disturbing the airflow and cooling facilities If heavy dust attack happens the unit should be ...

Страница 58: ... with switchable load synchronisation Overload ability 1000 for 10ms LED indications Operation mode Power Source 1 available Power Source 2 available synchronisation load at inverter load at mains and general fault alarm Clear letter display 2x16 signs LCD with background illumination Relay contacts general fault alarm as well as an additional freely programmable relay indication Noise level 30dB ...

Страница 59: ...oling with monitoring Ambient temperature in operation 0 40 C storage 30 50 C Maximum installation altitude 2000m above sea level Maximum humidity 85 without condensation weight UNB 5kVA 12 6kg UNB 12 5kVA 12 6kg UNB 23 0kVA 13 2kg UNB 30 0kVA 15 8kg UNB 40 0kVA 16 3kg Connections plug in terminals Varnishing front plate RAL7032 Options serial interface RS232 RS485 ...

Страница 60: ...it UNB Operation Manual UNB2357E Page 31 34 10 2 Dimensional Drawings UNB 5 0 12 5kVA P owe r S our ce 1 S our ce 2 S ync hro n L OAD IN VE RT ER L OAD Ma ins A lar m E nt er E SC C AN 1 CA N 2 RS4 22 UN B 483 133 360 X1 440 125 ...

Страница 61: ...Operation Manual UNB2357E Page 32 34 10 3 Dimensional Drawings UNB 23 0kVA A LA RM E SC L oa d In v er te r T L oa d M ain s S ou rc e 2 O K S YN CH R ON P ow er S ou rc e 1 O K UNB R S4 22 C AN 1 CA N 2 177 483 460 X1 X2 157 433 ENTER ...

Страница 62: ... Manual UNB2357E Page 33 34 10 4 Dimensional Drawings UNB 30 0 40 0kVA ENTER ALARM ES C LOAD I NV ERTE R T LOAD M AINS SY NCHRON UNB RS422 CAN 1 CAN 2 177 48 3 46 0 X1 X2 157 43 3 X3 Power Source2 OK Source1 OK 10 5 Photograph UNB 5 0 12 5 kVA ...

Страница 63: ...Universal Bypass Switch Unit UNB Operation Manual UNB2357E Page 34 34 See cover 1 side 10 6 Photograph UNB 23 0 30 0 40 0 kVA ...

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