Eaton Power Xpert 9395P-900 Series - Page 208

UPS Operating Instructions
7-36 Eaton
®
Power Xpert
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9395P-900 UPS Installation and Operation Manual P-164000501—Rev 09 www.eaton.com/powerquality
15. Press the SELECT pushbutton on the UPS Command menu bar.
16. Verify the following messages display sequentially on the UPS status line:
DC STARTING, CHARGER OFF
INVERTER STARTING
INVERTER SYNCING
ONLINE, CHARGER ON
The rectifier and inverter turn on. The inverter continues to ramp to full voltage.
Once the inverter reaches full voltage, the UPS output contactor (K3) closes. Power is now supplied to the
critical load in Online mode along with the other UPSs online. It takes approximately one minute for the UPS
to achieve Online mode.
The Online status indicator is illuminated. The UPS status indicates ONLINE. The UPM status indicates
ONLINE, CHARGER ON.
7.5.9 UPS and Critical Load Shutdown
To perform maintenance or service on the critical load, shut down UPS power to the load.
To shut down the UPS and the critical load:
1. Turn off all equipment that is being powered by the distributed bypass system.
2. Perform the LOAD OFF procedure in paragraph 7.5.11 or paragraph 7.5.12 on the UPS being shut down.
The input, output, battery, and bypass backfeed contactors open, and the power module turns off.
Logic power remains on.
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
3. If the UPSs contain input breakers (CB1), open all UPS input breakers.
4. Open the input and bypass feeder circuit breakers on all UPSs.
7.5.10 Charger Control
To turn on the battery charger:
1. Press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
2. On the System Status screen, select the CHARGER command.
3. Press the CONTROLS pushbutton on the System Status menu bar. The Charger Control Command screen
is displayed.
4. On the Charger Control Command screen, select CHARGER ON.
5. Press the SELECT pushbutton on the Charger Command menu bar.
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.