INFOSEC UPS SYSTEM 61458 Manuel Utilisateur page 19

5. Operation
Transfer to Maintenance Bypass
To transfer to maintenance bypass from UPS, follow the below steps:
Step 1: Press "OFF" button of UPS unit to transfer to bypass mode.
Step 2: Open the maintenance switch door. If step 1 is not executed first, then UPS unit will
transfer to bypass mode automatically with control output signal connection when opening
the maintenance switch door.
Step 3: Transfer rotary switch to "BPS" position and switch off UPS input breaker on the
module. Then, all devices are directly powered by utility and there is no current through the
UPS. The output and input of UPS are isolated from the system. You may now service or
maintain the UPS by opening the UPS breaker.
Transfer to UPS Protection
After maintenance service is done, follow below steps to transfer back to UPS operation.
Step 1: Switch on the input breaker of the module and reconnect UPS battery input breaker.
Then UPS will enter to bypass mode.
Step 2: Transfer rotary switch to "UPS" position. Then, all devices are powered by utility
through UPS bypass mode.
Step 3: Close back maintenance switch door and press "ON" button of UPS unit. Then, all
devices are protected by the UPS.
NOTE: If maintenance will be executed in another place, before removing the UPS and the
module, please follow steps of "Transfer to Maintenance Bypass" and then disconnect all
wires between UPS and the module BME 3 TM RM.
6. Specifications of critical components
INFOSEC UPS SYSTEM – 4 rue de la Rigotière – 44700 Orvault – France – www.infosec-ups.com
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Hot Line Tel: +33 (0)2 40 76 15 82 – fax: +33(0)2 40 94 29 51 – hotline@infosec.fr – 10 15 AA 59 203 04
Parameter
Input breaker (each pole)
Bypass switch
Input/Output terminal
Max.
Current 63 A
Voltage 250 V
Current 63 A
Voltage 690 V
Current 60 A
Voltage 600 V