Eaton 93PM G2 User Manual

CAUTION
Do not attempt to restart the system after Load Off until you have identified and
cleared the cause of the shutdown.
77..55 CCoonnttrrooll aa ssiinnggllee UUPPSS iinn aa ppaarraalllleell ssyysstteemm
77..55..11 SSttaarrtt aa ssiinnggllee UUPPSS
Make sure that the load level does not exceed the single UPS capacity.
To start the UPS.
1. Close the UPS input feeder circuit breaker.
2. Close the UPS bypass input feeder circuit breaker.
3. Wait for the UPS control panel display to become active and indicate logic power.
4. In the home screen, press Controls.
5. Press the UPS controls button.
In the UPS controls screen, the system status is shown as SHUTDOWN.
6. In the UPS controls screen, press the Go online button.
If Auto Bypass is enabled (factory default), the critical load is immediately supplied by the bypass
source in the bypass mode, until the inverter turns on and the UPS transfers to the double conversion
mode. The yellow status indicator on the UPS control panel indicates that the UPS is in the bypass
mode. If auto bypass is not enabled, the UPS output remains off until the UPS system transfers to the
double conversion mode.
7. In the UPS control screen, press the Go online button.
8. Wait for the following messages to appear sequentially on the UPS status line:
STARTING
ONLINE
The rectifier and inverter turn on. The DC voltage continues to ramp up to full voltage. Once the DC
link reaches full voltage and the battery breaker is closed, the UPS output relay K3 closes. Power is
now supplied to the critical load in the double conversion mode. It takes approximately 20 seconds for
the UPS system to achieve the double conversion mode.
The UPS system is now operating in the double conversion mode and the green status indicator for
normal operation is lit in the UPS and all the UPMs.
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A single UPS in the system can be shut down only if it is redundant. In practice, this means that a UPS is
not allowed to be shut down if doing so would lead to an overload condition in the remaining UPSs in the
system.
To shut down a single UPS.
1. In the home screen, press Controls.
The system controls screen is displayed.
2. In the System controls screen, press UPS controls.
3. In the UPS control screen, select Shut down UPS.
EATON 93PM G2 UPS USER’S AND INSTALLATION GUIDE P-164000956
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February 2021 www.eaton.eu 7799

Eaton 93PM G2 Specifications

General

Brand	Eaton
Model	93PM G2
Category	UPS
Language	English