Liebert Series 600T - Manual (Page 107)

Operation 101
Module Shutdown Procedure
Perform a Module Shutdown Procedure when you want to remove power from a UPS module when required for
maintenance.
Before performing any maintenance on your Liebert Series 600T UPS, observe ALL of the WARNINGS in
4.0 - Maintenance.
Use the module Monitor/Mimic Display to determine the operating condition of the UPS module.
From the module Master Menu, select the Shutdown Procedures screen. Note that this is a two-page screen.
Figure 63 Module Shutdown Procedures Screen
Step 1. If the UPS module is on-line, simultaneously press the Output Trip and 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 pressing the Battery Trip
and Control Enable pads (Figure 10).
SHUTDOWN PROCEDURES
NEXT PAGE
MASTER MENU
1. If load can not be supported by the remaining modules when this module
is taken off line, go to the system control cabinet and select the "LOAD
TRANSFER PROCEDURES" screen. Follow the instructions to transfer
to bypass.
2. Open the module output breaker by simultaneously pressing the OUTPUT TRIP
and CONTROL ENABLE pushbuttons.
3. Open the module battery breaker by simultaneously pressing the BATTERY TRIP
and CONTROL ENABLE pushbuttons.
4. Manually open the input breaker by moving the handle to the OFF position.
DOWN :
SELECT :
FIRST PAGE
MASTER MENU
5. Verify breaker status on the "MONITOR / MIMIC" screen.
6. If necessary for maintenance purposes, turn the control power switch (fuse
disconnect on some models) to the OFF position.
7. Wait a minimum of two (2) minutes before attempting any other action.
UP :
SELECT :
SHUTDOWN PROCEDURES (Cont'd)