Uninterruptible Power Supplies PowerWave 3000T, User Manual

Page: 43 / 60

UPS469-01-00 PowerWAVE 3000T User Manual Dated 05-04-13
4-13
4: Operation
4.5.3 Complete system shutdown
The UPS system may be shutdown completely if the load does not need input power for an extended period
of time. Use this procedure to turn off the load power and shutdown the entire UPS system.
1. Isolate all load equipment connected to the output of 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.
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 battery fuse/isolator (F1).
Note: If using external batteries open the battery fuses/isolator in the associated battery cabinet.
5. Open the module’s Output Isolator switch (IA2).
6. Open the Bypass Line fuse holder FA2 and the Rectifier Line fuse holder FA1.
7. Open the UPS Input and Bypass supply fused isolators (or circuit breakers) in the power distribution
panel.
8. 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.
WARNING: Allow 10 minutes for the internal DC capacitors to discharge before touching the
UPS internal components.
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