Powerware 9395 UPS and Plus 1 UPS 650825 kVA - Manual (Page 163)

UPS OPERATING INSTRUCTIONS
EATON Powerware ® 9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com 7−21
7.4.2 Starting the Distributed Bypass System in Bypass Mode
If the inverter output of the distributed bypass system is not available and the critical
load needs to be energized:
C A U T I O N
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1. If the UPSs contain input breakers (CB1), verify that all input breakers are open.
2. Close all MOBs.
3. Close all UPS input feeder circuit breakers.
4. Close all UPS Bypass input feeder circuit breakers.
5. Observe the UPS control panel displays becoming active, indicating logic power.
6. On any UPS, press the CONTROLS pushbutton on the main menu bar. The System
Status screen is displayed.
7. On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
status is OFFLINE.
8. If the UPSs contain input breakers (CB1), close all input breakers.
9. On the System Status screen, select the BYPASS command.
10. Press the CONTROLS pushbutton on the System Status menu bar. The Bypass
Control Command screen is displayed.
11. On the Bypass Control Command screen, select GO TO BYPASS .
12. Press the SELECT pushbutton on the Bypass Command menu bar.
The critical load is immediately supplied by the bypass source in Bypass mode
from all UPSs.
The BYPASS status indicator is illuminated. The Bypass status indicates ON. The
UPM status indicates SHUTDOWN, CLOSE BATTERY.
7.4.3 Starting the UPSs UPMs
To start the power modules without transferring the critical load to Normal mode:
1. If the UPSs contain input breakers (CB1), verify that all input breakers are open.
2. Close all UPS input feeder circuit breakers.
3. Close all UPS Bypass input feeder circuit breakers.
4. Observe the UPS control panel displays becoming active, indicating logic power.
5. On any UPS, press the CONTROLS pushbutton on the main menu bar. The System
Status screen is displayed.
6. On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
status is OFFLINE.
7. If the UPSs contain input breakers (CB1), close all input breakers.