Eaton 9PX Lithium-Ion User Guide P-164001006—Rev 03 37CChhaapptteerr 77 TTrroouubblleesshhoooottiinngg77..11 TTyyppiiccaall AAllaarrmmss aanndd FFaauullttssThe Eaton 9PX are designed for durable, automatic operation and also alert you whenever potential operating problems mayoccur. Usually the alarms shown by the control panel do not mean that the output power is affected. Instead, they arepreventive alarms intended to alert the user.• Events are silent status information that are recorded into the Event log. Example = "AC freq in range".• Alarms are recorded into the Event log and displayed on the LCD status screen with the logo blinking.Some alarms may be announced by a beep every 3 seconds. Example = "Battery low".• Faults are announced by a continuous beep and red LED, recorded into the Fault log and displayed on theLCD with a specific message box. Example = Out. short circuit.Use the following troubleshooting chart to determine the UPS alarm condition.Checking the Alarms and FaultsTo check the Event log or Fault log :1. Press any button on the front panel display to activate the menu options.2. Press the button to select Event log or Fault log.3. Scroll through the listed events or faults.The following table describes typical conditions.Conditions Possible cause ActionBattery modeLED is On.1 beep every 10 secondsA utility failure has occurred and the UPSis in battery mode.The UPS is powering the equipment withbattery power. Prepare your equipmentfor shutdown.Battery modeLED is On.1 beep every 3 secondsThe UPS is in Battery mode and thebattery is running low.This warning is approximate, and theactual time to shutdown may varysignificantly. Depending on the UPS loadand number of Extended Battery Modules(EBMs), the "Battery Low" warning mayoccur before the batteries reach 20%capacity.No batteryLED is OnBeep continuousThe batteries are disconnected. Verify that all batteries are properlyconnected. To clear a batterydisconnected alarm a battery test mustbe initiated. See Table 5. If the conditionpersists, contact your servicerepresentative.Battery faultLED is OnBeep continuousThe battery test is failed due to bad ordisconnected batteries.Verify that all batteries are properlyconnected. If the condition persists,contact your service representative. Toclear a battery disconnected alarm abattery test must be initiated. SeeTable 5. If the condition persists, contactyour service representative.