Eaton 9155 User Manual

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Contents

Eaton 9155 UPS (8–15 kVA) User's Guide 164201553 Rev G (www.eaton.com/powerquality) 79Chapter 14 TroubleshootingThis section explains: Typical UPS alarms and conditions How to silence an alarm Service and supportTypical Alarms and ConditionsTable 19 describes typical alarms and conditions; check the Event Log through thecontrol panel for a list of active alarms. If an alarm appears with a service code, pleasecontact the Help Desk (see page 80).Table 19. Troubleshooting GuideAlarm or Condition Possible Cause ActionOn BatteryLED is on.1 beep every second.A utility failure has occurred and the UPS is inBattery mode.The UPS is powering the equipment with battery power. Prepareyour equipment for shutdown.Battery LowLED is on.Continuous beep for10 seconds.The battery is running low. Five minutes or less of battery power remains (depending on loadconfiguration and battery charge). Save your work and turn offyour equipment.When utility power is restored, the UPS restarts automatically,provides power to the load, and charges the battery.Battery BreakerLED is on.1 beep every second.The UPS does not recognize the internalbatteries.Verify the battery circuit breaker is in the ON position. If thecondition persists, contact your service representative.OverloadLED is on.1 beep every second.Power requirements exceed the UPS capacity(greater than 100% of nominal; see page 75 forspecific output overload ranges).Remove some of the equipment from the UPS. The UPS continuesto operate, but may switch to Bypass mode if the load increases.The alarm resets when the condition becomes inactive.OvertemperatureLED is on.1 beep every second.UPS internal temperature is too high or the fanhas failed.If you have an optional Maintenance Bypass Module (MBM) orPower Distribution Module (PDM), turn the maintenance bypassswitch to the SERVICE position. If you have a wall-mountedbypass switch, turn the maintenance bypass switch to the LINEposition. 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 backto the UPS position (or restart the UPS if you do not have aswitch).If the condition persists, contact your service representative.Battery test failed The batteries need service. Contact your service representative.