APC MGE GALAXY 5000 40 130KVA - Manual (Page 49)

Installation and User Manual
4.3.2 UPS Isolation Parallel UPS Without External Bypass Cabinet
Shutdown and isolation of the first UPS:
Figure 4-3: Parallel UPS Configuration Without External Bypass Cabinet
ATTENTION Power is present on the power connection terminals.
Shutdown and isolation of the second UPS:
1 - Press a button to exit sleep mode.
2 - Shut down the UPS by pressing the OFF button (38) for 3 seconds.
3 - Set bypass switch Q3BP (10) to ON.
4 - Set output switch Q5N (11) to OFF.
5 - Set the battery circuit breaker of the auxiliary cabinets to OFF.
6 - Set the input switch Q1 (8) to OFF.
7 - Set the switch Q4S (9) to OFF.
8 - Wait until the display and LEDs go off.
The load is no longer protected by the UPS, but continues to be supplied with AC power.
UPS maintenance or servicing can now be carried out.
ATTENTION Power is present on the power connection terminals.
1 - Check that the two UPSs are operating.
2 - Press a button to exit sleep mode.
3 - Shut down the UPS by pressing the OFF button (38) for
3 seconds.
4 - Set output switch Q5N (11) to OFF.
5 - Set the battery circuit breakers of the auxiliary cabinets
to OFF.
6 - Set the input switch Q1 (8) to OFF.
7 - Set the switch Q4S (9) to OFF.
8 - Wait until the display and LEDs go off.
The load is still protected by the other UPS.
Maintenance or servicing can now be carried out on the
UPS that has been shut down.
Maintenance 4 — 3 86-174010-00 B00