NOTE:
Make sure that the wires are connected tightly to the terminals.
7. Put the terminal block cover back on the rear panel of the module.
5. Operation
Transfer from UPS to maintenance bypass mode
To manually change from UPS to maintenance bypass function, follow the steps included below:
Step 1:
Press the
OFF
button of the UPS unit to transfer to bypass mode.
Step 2:
Open the maintenance switch cover. If step 1 is not executed first, then the UPS unit will transfer to bypass mode automatically
with the output control signal connection when opening the maintenance switch cover.
Step 3:
Turn the switch to its
BPS
position and switch off the UPS input breaker on the bypass switch module. Every device will be
directly fed from utility as the current flowing through the UPS will be interrupted. The output and input terminals of the UPS are now
isolated from the system. Ensure that the UPS is off, and that battery power is disconnected as well, with the terminals completely
de-energized before performing any maintenance on the unit.
Transfer from maintenance bypass to UPS mode
After the system has been placed into service mode, it must be returned to UPS state to resume normal operation.
Step 1:
Switch the input breaker of the bypass switch module back on and reconnect the UPS battery power. This will cause the UPS
to enter into bypass mode.
Step 2:
Turn the maintenance switch to its
UPS
position. All loads will be then powered by utility power through the UPS bypass mode.
Step 3:
Close the maintenance switch cover and press the
ON
button of the UPS unit. At this stage, the connected equipment is again
being powered and protected by the UPS.
NOTE:
If maintenance will be executed in a different location, follow the steps under
Transfer from UPS to maintenance bypass
mode
before removing the power supply unit and the bypass switch module.
Step 4:
Finish by disconnecting all the wires between the UPS and the bypass switch module for complete isolation.
6. Specification of critical components
Input breaker
Bypass switch
Input/output terminal
Current
Voltage
Current
Voltage
Current
Voltage
63A
250V
63A
690V
60A
600V
Parameter
Max.
Full installation with maintenance bypass and isolation transformer (110V or 220V operation)
MAINTENANCE
BYPASS
UPS
BATTERY PACK
ISO (output to load)
Full installation with maintenance bypass (220V operation only)
MAINTENANCE
BYPASS
(Output to load)
UPS
BATTERY PACK
Содержание FDC-BS10KMR
Страница 1: ...2 y e a r w a r r a n t y User guide Maintenance bypass switch module FDC BS10KMR...
Страница 5: ......
