TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18
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4: Operating procedures
4.12 Parallel module complete system shut-down
Use this procedure to totally shut-down and power off multi-module UPS system
1. Turn off the individual load items.
2. Open the System Output Breaker.
3. Open the individual UPS Output Breakers.
If the modules are ‘on-line’
4. On the Control Panel of ANY on-line module, press the
ON/OFF
key continuously for more than three seconds.
For ALL modules:
a) The alarm buzzer will sound.
b) The UPS will transfer to ‘on-bypass’ mode and its output will remain live through the (unprotected) bypass supply.
5. Go to step 9.
If the modules are ‘on-bypass’
6. Go to step 9.
If the modules are ‘on-battery’
7. On the Control Panel of ANY module, press the
ON/OFF
key continuously for more than three seconds.
For ALL modules:
a) The alarm buzzer will sound for three seconds
b) The output power will be immediately cut-off.
c) The fans will stop.
d) After a few seconds the UPS LCD display will power down.
8. Go to step 9.
All Modes
9. On the back of each UPS cabinet in turn, open the input breakers M1 and M2 (position
OFF
).
a) Power will be removed from the UPS output terminals
b) The fans will stop.
c) After a few seconds the UPS LCD display will power down.
10. To totally isolate the modules, open the external mains/bypass power Input Isolators and, where used, open the
external battery cabinet fuses/isolator.
WARNING:
With the UPS shut down allow at least 5 minutes for the UPS DC capacitors to discharge
before gaining internal access.
