UPS OPERATING INSTRUCTIONS
EATON
Powerware
®
9395 UPS (650–825 kVA) Installation and Operation Manual
S
164201725 Rev 2
www.powerware.com
7−12
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:
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 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
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 UPS contains input breaker CB1, close input breaker CB1.
8.
On the System Status screen, select the
BYPASS
command.
9.
Press the
CONTROLS
pushbutton on the System Status menu bar. The Bypass
Control Command screen is displayed.
10.
On the Bypass Control Command screen, select
GO TO BYPASS
.
11.
Press the
SELECT
pushbutton on the Bypass Command menu bar.
The critical load is immediately supplied by the bypass source, in Bypass mode.
The
BYPASS
status indicator is illuminated. The Bypass status indicates
ON
. The
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
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 UPS contains input breaker CB1, close input breaker CB1.
8.
On the System Status screen, select the
UPM
command.
9.
On the UPS Control Command screen, select the
UPM 1
command.
