Liebert 610 manual Shutdown Procedures Module Shutdown Procedure

Operation

3.4.4Shutdown 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

DOWN : NEXT PAGE

SELECT : MASTER MENU

SHUTDOWN PROCEDURES

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5.Press the ALARM RESET button to clear alarms which are no longer active.

Figure 56 Shutdown procedures screen, continued

UP : FIRST PAGE

SELECT : MASTER MENU

SHUTDOWN PROCEDURES (Cont'd)

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.

STEP 2 (Shutdown Procedures)

Open the module battery disconnect (MBD) circuit breaker by simultaneously pressing the Battery Trip and Control Enable pads (Figure 4).

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