AEC Star T3 Service Manual

Also see for Star T3: Service manual

Contents

AEC Star T3 Service Manual Manual pdf 4 page image

ST3 1-3kVA Service Manual Rev.1Allis Electric Page 2 of total 12 September 20062. Fault and WarningLCD & LED Status /Audible Alarms Possible Cause ActionFault Warning Normaly UPS in Bypass Mode.y The alarm beeps continuously.AC: OK BATT: OKTEMP Fail1. Fan fail.2. Temperature ishigher thanallowed operationtemperature.1. Replace the fan.2. Reduce ambienttemperature or O/P load.Fault Warning Normaly UPS in Bypass Mode.y Fault LED lights up and thealarm beeps continuously.AC: OK BATT: OKInverter Fail1. Inverter circuitfailed.2. Inverter driverfailed.3. PFC circuit failed.4. Output shorted1. Replace the Invertercomponents or driver.2. Replace the PFCcomponents or driver.3. Remove the outputshorted.Fault Warning Normaly UPS in Normal Mode, butbattery capacity is low.y The alarm beeps once everysecond for battery low.AC: OK BATT: LOWNormal Mode1. Charger maybreak down.1. Please replace chargerboard.Fault Warning Normaly UPS stop working.y The alarm beeps continuously.AC: OK BATT: OKDC_BUS Fail1. Boost circuitfailed.2. Inverter circuitfailed3. PFC circuit failed4. BUS circuit failed.1. Replace the Boostcomponents.2. Replace the Invertercomponents.3. Replace the PFCcomponents.4. Replace the BUS circuitcomponents.