Uninterruptible Power Supplies PowerWAVE 8000DPA RI, User Manual, Page: 55 / 76

UPS338-01-00 PowerWAVE 8000-RI DPA User Manual Dated 5 April 2013
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4: Operation
Closing the Maintenance Bypass switch:
5. Close the Maintenance Bypass switch IA1.
6. On
all
UPS module check and confirm that:
a) The INVERTER LED has changed to red.
b) The BYPASS LED is green.
c) The LCD displays MANUAL BYP IS CLOSED .
Powering down a UPS Module:
When the load is connected to the Maintenance Bypass supply, as described above, the UPS Module(s) can
be powered down (for example, if required for maintenance/testing) using the following procedure:
Note: Carry out the following procedure on each UPS Module in a parallel system.
7. On the UPS control panel simultaneously press both ON/OFF buttons.
a) The LCD panel will indicate: LOAD OFF, SUPPLY FAILURE .
8. Open the fused battery isolator for the UPS Module in the UPS cabinet or in the external battery cabinet/
rack, as applicable.
WARNING:
The UPS Module/cabinets are still live at the input and output power terminals due
to the activation of Maintenance Bypass circuit.
WARNING:
The load is now supplied from the bypass mains and is not protected against
power failure.
LINE 1
LINE 2 BY PASS
INVERTER
BATTERY
LOAD
LED Colour
LINE 1 Green
LINE 2 Green
BY PASS Green
INVERTER RED
BATTERY Green
LINE 1
LINE 2 BY PASS
INVERTER
BATTERY
LOAD
LED Colour
LINE 1 Green
LINE 2 Off
BY PASS Off
INVERTER Off
BATTERY Green Flashing