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Eaton 93PM-L 20 – 60 kW (208V) UPS Installation and Operation Manual P-164000711—Rev 03
3.
If dual feed, close the UPS bypass feeder circuit breaker for the UPS being restarted.
4.
If IBCs are installed, close the battery breakers for the UPS being restarted.
5.
On the UPS being restarted, observe the UPS control panel display becoming active, indicating logic
power.
6.
Verify no alarms are active.
7.
On the UPS being restarted, tap the
CONTROLS
tab on the main menu navigation bar. The System
Control screen is displayed.
8.
Tap the
GO ONLINE
button.
9.
If requested, enter the Level 1 password. Default password is
1111
.
The rectifier and inverter turn on. The inverter continues to ramp up to full voltage.
Once the inverter reaches full voltage, all UPS inverter switchgear close and the static switches turn off.
Power is now supplied to the critical load in dual conversion mode from all UPSs. It takes approximately
one minute for the UPSs to achieve the dual conversion mode.
The Normal status indicator is illuminated.
NOTE
If the UPS is starting on a bus with other online paralleled UPSs, the UPS will not go to
bypass during startup. The UPS will start, sync to the other UPSs online, and go online.
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To perform maintenance or service on the critical load, shutdown power to the load:
1.
Turn off all equipment that is being powered by the UPS parallel system.
2.
Transfer the UPSs to bypass by performing the procedure in paragraph
Transfer from Double Conversion to Bypass Mode
3.
Perform the Load Off procedure in paragraph
The inverter and bypass switchgear open, and the power module is turned off on all UPSs.
4.
Perform the battery charger off procedure in paragraph
The rectifier and battery switchgear open.
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breakers and battery breakers
are opened. Wait at least 5 minutes before accessing internal components.
5.
Open the all of the UPSs input feeder circuit breaker.
6.
If dual feed, open all of the UPSs bypass feeder circuit breaker.
7.
If IBCs are installed, open all battery breakers.
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To turn the battery charger on:
1.
Tap the
CONTROLS
tab on the main menu navigation bar. The Control screen is displayed.
2.
Tap the
UPS CONTROLS
tab on the secondary navigation bar. The UPS Control screen is displayed.
3.
Tap the
TURN ON CHARGER
button.
To turn the battery charger off:
Summary of Contents for 93PM-L 60-1
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