APC G5USV040P005SAIO Datový list stáhnout pdf (Strana 55)

34001813EN/AF - Page 55

4. Maintenance

Parallel UPS configuration without external bypass cabinet

Restart the UPS unit for which switch Q3BP (10) is ON and the other switches are OFF.

Restart the UPS unit for which all switches are set to OFF.

Caution. It is imperative to restart this UPS unit. Otherwise, load power is cut if the other two UPSs are shut down.

1 - Set the input circuit-breaker Q4S (9) to ON.

2 - Set output switch Q5N (11) to ON.

3 - Check that the UPS is listed by the display, then confirm by pressing

the function keys (35).

4 - Set bypass switch Q3BP (10) to OFF.

5 - Set the input circuit-breaker Q1 (8) to ON.

6 - Set the battery circuit-breaker QF1 (13) (or set the battery circuit-

breakers of the auxiliary cabinets if any) to ON.

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

The load is protected by the UPS.

If LED (31) remains OFF, press the ON button (37)

If LED (31) still remains OFF and either of LEDs (32) or (33) is ON, a fault

has occurred (see section 4.1).

1 - Set the input circuit-breaker Q4S (9) to ON.

2 - Set output switch Q5N (11) to ON.

3 - Check that all the UPS units present in the installation are included in

the list on the display and confirm by pressing the function buttons (35).

4 - Set the input circuit-breaker Q1 (8) to ON.

5 - Set the battery circuit-breaker QF1 (13) (or set the battery circuit-

breakers of the auxiliary cabinets if any) to ON.

The UPS restarts and LED (31) is ON.

If LED (31) remains OFF, press the ON button (37)

(the system is in manual start mode).

If LED (31) still remains OFF and either of LEDs (32) or (33) is ON, a fault

has occurred (see section 4.1).

Q1 Q4S Q3BP Q5N

QF1

31 32 33

Q1 Q4S Q3BP Q5N

QF1

31 32 33

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 67 68

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APC G5USV040P005SAIO Datový list Strana 55