Revision December, 2014 10-1Chapter 10 Troubleshooting10.1 Alarm of Servo DriveDisplay Alarm Name Alarm Description CorrespondingDOServoStatusAL001Overcurrent The current of the main circuit is1.5 times more than theinstantaneous current of themotor.ALM ServoOffAL002 Overvoltage The voltage of the main circuit ishigher than the standard voltage. ALM ServoOffAL003 Undervoltage The voltage of the main circuit islower than the standard voltage. WARN ServoOffAL004 Motor CombinationErrorThe drive corresponds to thewrong motor. ALM ServoOffAL005 Regeneration Error Regeneration control is in error. ALM ServoOffAL006 Overload The motor and the drive isoverload. ALM ServoOffAL007 Overspeed The control speed of the motorexceeds the normal speed. ALM ServoOffAL008Abnormal PulseCommandThe input frequency of the pulsecommand is over the allowablevalue of the hardware interface.ALM ServoOffAL009Excessive Deviationof PositionCommandThe deviation of positioncommand exceeds the allowablesetting value.ALM ServoOffAL011 Encoder Error The encoder produces abnormalpulse. ALM ServoOffAL012Adjustment Error When executing electricaladjustment, the adjusted valueexceeds the allowable value.ALM ServoOffAL013 Emergency Stop Press the emergency stop button. WARN ServoOffAL014 Reverse Limit Error Activate the reverse limit switch. WARN ServoOnAL015 Forward Limit Error Activate the forward limit switch. WARN ServoOnAL016 IGBT Overheat The temperature of IGBT is overhigh ALM ServoOff