KEB COMBIVERT F5 Instruction Manual

Also see for COMBIVERT F5: INSTALLATION GUIDELINE Installation manual Instruction manual Instruction manual Installation manual

Contents

187Diagnostics and Troubleshooting*Additional information at end of sectionError/Message Description Cause/Solution/TroubleshootE.OPError OverVoltage(continued)Measure DC bus directly and verify against DC busvoltage read from the Diagnostics screen. The DCbus should be approximately 1.41xAC Input phase-to-phase.If a braking resistor is used and there is an issue withthe braking transistor:If there is an issue due to high frequency noise:Verify proper mains grounding.E.PUError PowerUnitGeneral powercircuit faultInverter must be inspected and repaired by KEB orreplaced.E.PUCHError PowerUnit ChangedThe control cardrecognizes a newpower stage (thecontrol card waschanged).This error should automatically clear itself.E.PUCIError PowerUnit InvalidDuring theinitialization thepower circuit couldnot be recognizedor was identifiedas invalidThis error could occur from noise.Disconnect terminal strip, encoder cable and serialcomm. (if used) and power cycle the drive.Check phase-to-phase and phase-to-ground linevoltages to make sure they are balanced and notcausing noise.Re-seat ribbon connecting control card to power stage.