User's Guide Power Supply 9170

Operation

Powerware

9170 User's Guide  LTM-1344 B Uncontrolled Copy

Removing Input Power

Always put the Powerware 9170 UPS into the Off mode before removing

input power. Powerware 9170 system batteries will discharge if the

input line voltage is disconnected or turned off without first turning off

the Powerware 9170 UPS.

If the input power source will be disconnected or turned off for more

than a day or two, you should put the UPS into Sleep mode. Do this by

turning the UPS off, removing AC input power, and then pressing the

On button and selecting Battery Protect (BP). Sleep mode allows the

UPS to remain unpowered for up to six months without having to

remove or recharge batteries.

Failure to properly power down the Powerware 9170 UPS could

permanently damage any installed batteries. Also, if batteries become

severely discharged, the UPS might not start immediately when input

power is restored.

Turning the UPS On

If the UPS has been turned off, press the ON button through the front

panel display to turn the UPS on again.

If the UPS has been manually set to operate in Bypass or Battery mode,

change the System mode menu selection (menu 2) to Auto to return to

normal Auto mode operation.

NOTE The UPS will not start operating if AC input voltage or frequency is beyond

acceptable limits or if the system mode selection is set to Battery. The UPS can not go

directly from Off to Battery.