Eaton Powerware 9155 - Troubleshooting; Typical Alarms and Conditions

EATON Powerware
®
9155 UPS (8–15 kVA) User’s Guide S 164201553 Rev F www.powerware.com
79
Chapter 14 Troubleshooting
This section explains:
S Typical UPS alarms and conditions
S Howtosilenceanalarm
S Service and support
Typical Alarms and Conditions
Table 19 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 80).
Table 19. Troubleshooting Guide
Alarm or Condition Possible Cause Action
On Battery
LED is on.
1 beep every second.
A utility failure has occurred and the UPS is in
Battery mode.
The UPS is powering the equipment with battery power. Prepare
your equipment for shutdown.
Battery Low
LED is on.
Continuous beep for
10 seconds.
The battery is running low. 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.
Battery Breaker
LED is on.
1 beep every second.
The UPS does not recognize the internal
batteries.
Verify the battery circuit breaker is in the ON position. If the
condition persists, contact your service representative.
Overload
LED is on.
1 beep every second.
Power requirements exceed the UPS capacity
(greater than 100% of nominal; see page 75 for
specific output overload ranges).
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.
Overtemperature
LED is on.
1 beep every second.
UPS internal temperature is too high or the fan
has failed.
If you have an optional Maintenance Bypass Module (MBM) or
Power Distribution Module (PDM), turn the maintenance bypass
switch to the SERVICE position. If you have a wall-mounted
bypass switch, turn the maintenance bypass switch to the LINE
position. Otherwise, shut down the UPS.
Clear vents and remove any heat sources. Allow the UPS to cool.
Ensure the airflow around the UPS is not restricted.
If the alarm disappears, turn the maintenance bypass switch back
to the UPS position (or restart the UPS if you do not have a
switch).
If the condition persists, contact your service representative.
Battery test failed The batteries need service. Contact your service representative.