Powerware 9395 UPS and Plus 1 UPS 650825 kVA - Manual (Page 158)

UPS OPERATING INSTRUCTIONS
EATON Powerware ® 9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com 7−16
7.3.8 UPS and Critical Load Shutdown
To perform maintenance or service on the critical load, shut down power to the load:
1. Turn off all equipment that is being powered by the UPS.
2. Perform the LOAD OFF procedure in paragraph 7.3.10.
The input, output, battery, and bypass backfeed contactors open, and the power
module is turned off.
W A R N I N G
Power is present inside the UPS cabinet sections until the upstream input feeder circuit breaker is opened.
3. If the UPS contains input breaker CB1, open the UPS input breaker CB1.
4. Open the UPS input and bypass feeder circuit breakers.
7.3.9 Charger Control
To turn the battery charger on:
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.
To turn the battery charger off:
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 OFF .
5. Press the SELECT pushbutton on the Charger Command menu bar.