Liebert 610 - Manual (Page 82)

Operation
76
3.4.4 Shutdown Procedures
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 610 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.
STEP 1 (Shutdown Procedures)
From the module Master Menu, select the Shutdown Procedures screen. Note that this is a two-page
screen.
If the UPS module is supplying power to the load (Load On UPS), select the Load Transfer Procedures
screen and perform a manual transfer to the bypass line (Load on Bypass), see 3.4.2 - Load Transfer
Procedures. This will open the UPS module output motorized circuit breaker (Figure 3).
Figure 55 Shutdown procedures screen
Figure 56 Shutdown procedures screen, continued
STEP 2 (Shutdown Procedures)
Open the module battery disconnect (MBD) circuit breaker by simultaneously pressing the Battery
Trip and Control Enable pads (Figure 4).
SHUTDOWN PROCEDURES
NEXT PAGE
MASTER MENU
1. If load is not already being supplied by the bypass line, select the
"LOAD TRANSFER PROCEDURE" screen and follow the instructions to transfer
the load to bypass.
2. Open the battery breaker by simultaneously pressing the BATTERY TRIP and
CONTROL ENABLE pushbuttons.
3. Manually open the input breaker by moving the handle to the OFF position.
4. Verify breaker status on the "MONITOR / MIMIC" screen.
5. Press the ALARM RESET button to clear alarms which are no longer active.
DOWN :
SELECT :
FIRST PAGE
MASTER MENU
6. If necessary for maintenance purposes, open the static switch disconnects
and/or 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)