Troubleshooting; Typical Alarms And Conditions - Eaton Powerware 9155 User Manual

Chapter 10

Typical Alarms and Conditions

Alarm or Condition
On Battery
LED is on.
1 beep every second.
Battery Low
LED is on.
Continuous beep for
10 seconds.
Battery Breaker
LED is on.
1 beep every second.
Overload
LED is on.
1 beep every second.
EATON Powerware
® 9155 Parallel UPS (8–15 kVA) User's Guide

Troubleshooting

The Powerware 9155 is designed for durable, automatic operation and
also alerts you whenever potential operating problems may occur.
Usually the alarms shown by the control panel do not mean that the
output power is affected. Instead, they are preventive alarms intended
to alert the user. Use the following troubleshooting chart to determine
the UPS alarm condition.
The following table describes typical alarms and conditions; check the
Event Log through the control panel for a list of active alarms. If an alarm
appears with a service code, please contact the Help Desk (see
page 58).
Possible Cause
A utility failure has occurred and the
UPS is in Battery mode.
The battery is running low.
The UPS does not recognize the
internal batteries.
Power requirements exceed the UPS
capacity (greater than 100% of
nominal).
Action
The UPS is powering the equipment with battery
power. Prepare your equipment for shutdown.
Five minutes or less of battery power remains
(depending on load configuration and battery
charge). Save your work and turn off your
equipment.
When utility power is restored, the UPS restarts
automatically, provides power to the load, and
charges the battery.
Verify the battery circuit breaker is in the ON
position. If the condition persists, contact your
service representative.
Remove some of the equipment from the UPS. The
UPS continues to operate, but may switch to
Bypass mode if the load increases. The alarm
resets when the condition becomes inactive.
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