Emerson GXT2-PP20KRT208 - Manual (Page 24)

Operation
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8.0 O
PERATION
8.1 Operating Modes
8.1.1 Online Mode
NOTICE
Verify the operation of each UPS as detailed in 6.0 - Initial Startup and Electrical Checks
before powering On the parallel system as detailed below.
To power On the paralleling system:
1. Connect all parallel power cables and parallel communication cables between the UPSs and
parallel POD.
2. Switch all output circuit breakers on the parallel POD to the On (closed) position.
3. Switch all input circuit breakers on the parallel POD to the On (closed) position.
4. Switch the input circuit breaker of all connected UPSs to the On (closed) position.
5. Switch the output circuit breaker of all connected UPSs to the On (closed) position.
6. Press the On button of the first UPS to switch on the inverter.
7. Within one minute, press the On button for the remaining parallel UPSs. Otherwise the
paralleling system cannot enter Online mode.
NOTE
During the first minute a UPS is starting up, its “UPS On” indicator flashes.