Operation

3.4.2UPS Module Start-Up

When a UPS module has been shut down for any reason, use this procedure to start-up the UPS mod- ule to provide filtered, reliable power to the critical bus. This procedure gives step-by-step instruc- tions for controls to operate and conditions to observe. Your present situation could be initial start-up or recovering from input power failure, battery shutdown, maintenance shutdown or an emergency shutdown.

Perform this module start-up procedure at each module in your UPS system until all required mod- ules are on-line.

Step 1. Before you apply power to the UPS module, determine the position of the following circuit breakers and switches:

a.Rectifier Input Breaker (RIB) - If this external circuit breaker is closed, you already have power to the UPS cabinet and possibly power to the controls. If this breaker is closed, leave it closed. If it is open, leave it open until you are ready to apply power to the UPS cabinet.

b.Input Circuit Breaker (CB1) - Verify that this breaker on the front of the UPS module cabinet (Figure 8) is in the OFF position.

c.Module Battery Disconnect (MBD) - Verify that this external breaker is open or tripped.

d.Module Output Circuit Breaker (CB2) - Verify that this breaker on the front of the UPS module cabinet (Figure 8) is in the OFF position.

e.Control Power - The fuses labeled Control Disconnect should be ON (pushed in) unless you are recovering from a maintenance shutdown. If control power is OFF (fuseholders pulled open), leave it OFF until you are ready to apply power to the UPS controls.

Power must be provided to the UPS module controls so you can use the LCD and so the system logic can perform its control functions. Note that you can use the LCD to monitor UPS status, even when the UPS module is not on-line. If the LCD is operating, you already have Control Power. This will be the usual condition, unless you are recovering from a maintenance shutdown.

Step 2. If the LCD is not operating, energize Control Power by operating the following two controls:

a.Close the Rectifier Input Breaker (RIB), which is outside the UPS cabinet. This will provide power to the UPS cabinet but not to any UPS components.

b.Open the UPS cabinet door and close the Control Disconnect fuseholders to turn the Control Power ON. See Figure 8. Close the UPS cabinet door.

NOTE

Wait 2 minutes after applying control power before operating any other UPS module controls.

Press the Select pad on the UPS module to put the Master Menu on the LCD. Move the highlighted cursor to Start-Up Procedures (use the Up and Down pads). Press the Select pad to display the Start-Up Procedures screen. Return to this screen whenever you need to see the start-up instructions.

Select the Monitor/Mimic Display on the LCD. In the ALARM MESSAGES block (see Figure 15), the only alarm present should be Battery CB Open. If any other alarm messages are present, do not pro- ceed with the module start-up. Contact Liebert Global Services (LGS) for assistance.

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Emerson Series 610 manual UPS Module Start-Up
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Series 610 specifications

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