Operation 101
Module Shutdown Procedure
Performa Module Shutdown Procedure when you want to remove power from aUPS module when required for
maintenance.
Beforeperforming any maintenance on your Liebert Series 600T UPS, observe ALL of the WARNINGS in
4.0- Maintenance.
Usethe module Monitor/Mimic Display to determine the operatingcondition of the UPS module.
Fromthe module Master Menu, select the Shutdown Procedures screen.Note that this is a two-page screen.
Figure 63 Module Shutdown Proc edures Screen
Step 1. If the UPS module is on-line, simultaneously pressthe Ou tput Tripand Control Enable pads
(Figure 10). This will open the UPS module output circuit breaker (CB2, Figure 8).
Step 2. Open the module battery disconnect(MBD) circuit breaker by simultaneously pressingthe Battery Trip
and Control Enable pads (Figure10).
SHUTDOWNPROCEDURES
NEXTPAGE
MASTERMENU
1. Ifload can not be supported by the remaining modules w hen this module
istaken off line, go to the system c ontrol cabinet and select the "LOAD
TRANSFERPROCEDURES" screen. Follow the instructions to transfer
tobypass.
2. Openthe module output breaker by simultaneously press ing the OUTPUTTRIP
andCONTROL ENABLE pushbuttons.
3. Openthe module battery breaker by sim ultaneously pressi ng the BATTE RY TRIP
andCONTROL ENABLE pushbuttons.
4. Manuallyopen the input breaker by moving the handle to the OFF position.
DOWN :
SELECT :
FIRSTPAGE
MASTERMENU
5. Verifybreaker status on the "MONITOR / MIMIC"screen.
6. Ifnecessary for maintenance purposes, turn the control power sw itch (fuse
disconnecton some m odels) to the OFFpos ition.
7. Wait a minimum of two (2) minutes before attempti ng anyother acti on.
UP :
SELECT :
SHUTDOWNPROCEDURES (Cont'd)
DISCONTINUED
PROD U C T