TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18
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4: Operating procedures
4.2
Single module start-up – with mains supply
Use this procedure to start a single module UPS system from a completely powered down condition.
1. Check that all the loads connected to the UPS are turned off.
2. Close the external UPS Input/bypass Isolators as required to connect power to the UPS.
3. If an external battery cabinet is used, close the fused isolator on the back of the battery cabinet together with any
circuit breaker connected in the battery line.
4. On the back of the UPS cabinet, close the input breakers M1 and M2 (position
ON
).
a) The fans will start running.
b) The UPS will perform a self-test and will then display the default screen on the LCD.
5. On the UPS Control Panel, press the
ON/OFF
key for more than one second.
a) The alarm buzzer will sound and the UPS will start.
b) After a few seconds, the UPS will switch to its ‘on-line’ mode.
6. Check that the LCD indicates the ‘on-line’ status and no warning alarms are present.
7. The UPS is now fully operational and providing protected output power.
8. You can now switch on the loads.
(If possible, turn on the loads sequentially to prevent a UPS overload occurring due to combined inrush currents.)
4.3
Single module start-up – without mains supply
If there is no mains supply present, you can use this procedure to start a single module UPS system using battery power
(also described as a ‘cold start’).
1. Check that all the loads connected to the UPS are turned off.
2. Close the external UPS Input/bypass Isolators as required to connect power to the UPS.
3. If an external battery cabinet is used, close the fused isolator on the back of the battery cabinet together with any
circuit breaker connected in the battery line.
4. On the back of the UPS cabinet, close the input breakers M1 and M2 (position
ON
).
a) Nothing will happen if the input supplies are not present.
5. On the UPS Control Panel, press the
ON/OFF
key for more than one second.
a) The fans will start running.
b) The UPS will perform a self-test and will then display the default menu on the LCD.
6. Press the
ON/OFF
key again for more than one second.
a) The alarm buzzer will sound and the UPS will start.
b) After a few seconds, the UPS will switch to its ‘on-battery’ mode.
7. Check that the LCD indicates the ‘on-battery’ status and no warning alarms are present other than those associated
with the ‘battery on load’ status.
8. The UPS is now fully operational and providing protected output power, but the battery is on load and discharging
(with the accompanying alarms).
9. You can now switch on the loads.
(If possible, turn on the loads sequentially to prevent a UPS overload occurring due to combined inrush currents.)
a) If the UPS is left to run in this condition sufficiently long, the battery will fully discharge and the UPS will shut down
with the loss of the output supply.
b) If the mains supply is restored while the UPS is ‘on-battery’ it will automatically switch to ‘on-line’ mode.
Key Point:
When starting the UPS in this manner the batteries will immediately begin to discharge. If you want
to sustain power to the load it is important that the mains supply is restored before the UPS shuts down due to
the battery reaching its ‘end of discharge’ voltage.
