Uninterruptible Power Supplies PowerWAVE 8000DPA RI, User Manual

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4: Operation
4-14
UPS338-01-00 PowerWAVE 8000-RI DPA User Manual Dated 5 April 2013
4.5.4 Complete system shutdown
The UPS system may be shutdown completely if the load does not need power for an extended period of
time. Use this procedure to totally turn of the load power and shutdown the entire UPS system.
1. Isolate all load equipment connected to the UPS system by opening the fused isolators or circuit
breakers in the UPS output load distribution board.
2. Verify that the loads are powered down. Then carry out the following actions on every UPS Module in a
multi-module system.
3. On the UPS control panel simultaneously press both ON/OFF buttons.
a) The LCD panel will indicate: LOAD OFF, SUPPLY FAILURE .
4. Open the fused battery isolator for the UPS Module(s) in the UPS cabinet or in the external battery
cabinet/rack, as applicable.
5. Open the UPS Input isolators (and Bypass supply isolators in a ‘dual feed’ system) at the building power
distribution panel.
6. The UPS is now voltage free.
WARNING:
All the operations in this section must be performed by authorised and trained
personnel.
CAUTION: This procedure will totally disconnect load power. Ensure that it is safe to lose
power to all the loads connected to the UPS system before you begin this process.
WARNING:
Perform the following steps only after the load has been fully isolated.
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