UPS OPERATING INSTRUCTIONS
20.Repeat Steps 8 through 19 for each UPS in the distributed bypass system.
NOTE To transfer to Normal mode after starting individual UPMs, follow the procedure in paragraph 7.4.5 .
7.4.4Transfer from Normal to Bypass Mode
To transfer the critical load to Bypass mode:
C A U T I O N
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1.On any UPS, press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
2.On the System Status screen, select the BYPASS command.
3.Press the CONTROLS pushbutton on the System Status menu bar. The Bypass Control Command screen is displayed.
4.On the Bypass Control Command screen, select GO TO BYPASS.
5.Press the SELECT pushbutton on the Bypass Command menu bar.
All of the UPSs transfer to Bypass mode and the critical load is immediately supplied by the bypass source from all UPSs. If the bypass source is not available, the power module remains on and an alarm sounds.
The BYPASS status indicator is illuminated. The Bypass status indicates ON. The UPM status indicates READY. The power module remains on.
W A R N I N G
Power is present inside the UPS cabinet sections.
7.4.5Transfer from Bypass to Normal Mode
To transfer the critical load to Normal mode:
1.If not already closed, close the battery breaker.
2.On any UPS, press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
3.On the System Status screen, select the UPS command.
4.Press the CONTROLS pushbutton on the System Status menu bar. The UPS Control Command screen is displayed.
5.On the UPS Control Command screen, select GO TO NORMAL.
6.Press the SELECT pushbutton on the UPS Command menu bar.
All of the UPSs transfer to Normal mode. If the power module is not available, the system remains on bypass and an alarm sounds.
The NORMAL status indicator is illuminated. The UPS status indicates ONLINE. The UPM status indicates ONLINE.
EATON Powerware® 9395 UPS | 7−23 |
