4: Operating procedures
42
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18
4.11 Parallel system – start/stop one module
If a parallel system includes a redundant module, you can use this procedure to stop or start an individual module without
affecting the UPS critical load power.
To turn OFF one module
1. From the default screen, press the
DOWN
key for one second to access
the Main Menu.
2. Scroll to the ‘Turn OFF Single
Module’ screen, as shown [A].
3. Press the
SELECT
key.
a) The cursor will flash on
NO
.
4. If you want to turn OFF the module
use the
UP/DOWN
keys so that the
cursor indicates YES, then select it
by pressing the
SELECT
key for
more than one second [B].
5. The UPS module will turn OFF
without affecting the rest of the
system.
6. To isolate the shut-down module
open its external input and output
breakers and isolate the external
battery cabinet fuses if used.
To turn on the module
1. Ensure the module’s external Output Breaker is open.
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 menu 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. Close the module’s external Output Breaker.
8. The UPS is now fully operational and providing protected output power in parallel with the other system modules.
WARNING:
With the UPS shut down allow at least 5 minutes for the UPS DC capacitors to discharge
before gaining internal access.
Measurements
Event Log
Control
Buzzer mute
Identification
Settings
Turn OFF Single
UPS
Single UPS Turn off:
no
yes
<1s
Figure 4.2 Turning of one module in a parallel system
A
B
