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UPS OPERATING INSTRUCTIONS
7−12
EATON Powerware
7.3.2
Starting the UPS in Bypass Mode
If the inverter output of the UPS is not available and the critical load needs to be
energized:
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1.
If the UPS contains input breaker CB1, verify that input breaker CB1 is open.
2.
Close the UPS input feeder circuit breaker.
3.
Close the UPS Bypass input feeder circuit breaker.
4.
Observe the UPS control panel becoming active, indicating logic power.
5.
Press the
CONTROLS
screen is displayed.
On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
6.
status is OFFLINE.
7.
If the UPS contains input breaker CB1, close input breaker CB1.
8.
On the System Status screen, select the
9.
Press the
CONTROLS
Control Command screen is displayed.
10. On the Bypass Control Command screen, select
11. Press the
SELECT
The critical load is immediately supplied by the bypass source, in Bypass mode.
The
BYPASS
UPM status indicates SHUTDOWN, CLOSE BATTERY.
7.3.3
Starting the UPMs
To start the power module without transferring the critical load to Normal mode:
1.
If the UPS contains input breaker CB1, verify that input breaker CB1 is open.
2.
Close the UPS input feeder circuit breaker.
3.
Close the UPS Bypass input feeder circuit breaker.
4.
Observe the UPS control panel becoming active, indicating logic power.
5.
Press the
CONTROLS
screen is displayed.
On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
6.
status is OFFLINE.
7.
If the UPS contains input breaker CB1, close input breaker CB1.
8.
On the System Status screen, select the
9.
On the UPS Control Command screen, select the
®
9395 UPS (1000–1100 kVA) Installation and Operation Manual
C A U T I O N
pushbutton on the main menu bar. The System Status
pushbutton on the System Status menu bar. The Bypass
pushbutton on the Bypass Command menu bar.
status indicator is illuminated. The Bypass status indicates ON. The
pushbutton on the main menu bar. The System Status
S
164201764 Rev 1 www.powerware.com
command.
BYPASS
.
GO TO BYPASS
command.
UPM
command.
UPM 1
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