MGE Galaxy 5000

3.2Restarting a Single UPS

Check that switches Q4S (9) and Q5N (11) are closed. If this is the case, continue with this procedure, otherwise refer to Section 4.4.1 "Return to the Normal Operation, Single UPS".

Figure 3-2: Restarting a Single UPS

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1 - Set the Normal AC source input switch Q1 (8) to the ON position.

2 - Wait until the end of the start sequence.

3 - Set the battery circuit breaker of the auxiliary cabinets to the ON position.

The UPS starts automatically. LED (31) is ON.

The load is protected by the UPS.

If LED (31) remains OFF, press the ON button (37) (the UPS is in manual start mode) and confirm if necessary by pressing the function key (35) marked .

If LED (31) still remains OFF and either of LEDs (32) or (33) is ON, a fault has occurred (see Section 4.1).

3.3Shutting Down a Parallel Configuration

Figure 3-3: Shutting Down a Parallel Configuration

1 - Press a button on each unit to exit sleep mode.

2 - Press the OFF button (38) on each unit for 3 seconds.

The load is no longer protected by the UPSs. It is supplied via the bypass.

3 - Set the battery circuit breakers of the auxillary cabinets to the OFF position.

4 - Set the input switch Q1 (8) in each UPS to the OFF position.

The charger no longer operates to keep the batteries fully charged.

5 - Open the upstream circuit breakers of Normal AC source and Bypass AC source to completely power off the installation.

3 — 2

Operation

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APC 40 130KVA user manual Restarting a Single UPS, Shutting Down a Parallel Configuration, Load is protected by the UPS