Kohler PowerWAVE 9500DPA User Manual page 64

:
6. On the system control panel check that the UPS
mimic indicates the load on static bypass.
7. Check that the display header Load Status
indicates that the load is protected.
Transfer the load to maintenance bypass:
8. Close the maintenance bypass switch.
9. On the system control panel, verify that:
a) The INVERTER icon is red.
b) The BYPASS icon is green.
c) The Maintenance Bypass line is yellow.
d) The audible alarm activates and a MANUAL BYP
IS CLOSED event is registered.
10. Press the RESET button (on all UPS modules) to
cancel the audible alarm.
11. Check that the display header bar Load Status
indicates that the load is not protected
Turn off the UPS module:
12. Carry out steps 13 to 16 on each UPS module in turn.
13. On the module control panel, simultaneously press both ON/OFF buttons
and verify that:
a) All LEDs turn OFF except for LINE 1 and BATTERY (flashing green).
14. Open the module's parallel isolator (IA2).
15. Open the module's bypass fuse (F2).
16. Open the battery fuse (F3). To totally isolate the battery also open the
external battery fuses.
The load is now connected directly to the mains supply via the maintenance bypass circuit. In the case of a single cabinet
installation using the internal maintenance bypass switch (IA1), the external UPS system input isolators must remain
closed to support the load, and the UPS cabinet's input/bypass and output power terminals will remain live. Where an
external maintenance bypass facility is used, the UPS system input supply can be turned off – see the operating
instructions for the bespoke external maintenance bypass facility for details.
56
L.2
L.1
rectifier
L.2
L.1
rectifier
LINE 2
LINE 1
TS_622_02 PowerWAVE 9500DPA User Manual 26/2/19
load
inverter
load
inverter
BY PASS
LOAD
INVERTER
BATTERY