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2 starting the ups in bypass mode, 3 starting the upms – Powerware 9395 UPS and Plus 1 UPS 650825 kVA User Manual

Page 154

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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.