How To Completely Shut Down The Ups System; System Shutdown - Kohler MF1500DPA User Manual

6: Operating Instructions
6.6

How to completely shut down the UPS system

Summary
The UPS system can be completely shut down if the load does not require power for an extended period of time.
CAUTION: Before you carry out this procedure, warn the critical load user that power is about to be
disconnected.
Initial conditions
• The UPS system is operating on inverter or maintenance bypass.
6.6.1

System shutdown

1. If the system is operating with load on inverter, transfer the load to the maintenance bypass supply following the
procedure provided in paragraph 6.5.
2. Turn off the load equipment at the load distribution panel.
3. Open the external maintenance bypass switch (Q1)
4. On the module control panel (of ALL modules) verify that:
a) The operating status shows MODULE OFF.
b) The RECTIFIER and BYPASS leds are green.
c) The LOAD led is OFF.
d) The BATTERY led is flashing red.
e) Q1 and Q2 both indicate OPEN.
f) The Event Log LOAD OFF, SUPPLY FAILURE.
If necessary press the RESET (Back) button to obtain this
display.
5. Turn OFF the UPS system input mains supply at the incoming mains
WARNING: The UPS system is now completely turned OFF and the module control panels will power down.
Wait at least 5 minutes to allow the UPS AC and DC capacitors to completely discharge before gaining internal
access to the UPS cabinet power sections.
78
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switchboard(s).
TS_627_02 - PowerWAVE MF1500 DPA User Manual 21/4/22