YASKAWA SGMJV User Manual

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YASKAWA SGMJV User Manual Manual pdf 305 page image

9 Troubleshooting9.1.2 Troubleshooting of Alarms9-69.1.2 Troubleshooting of AlarmsIf an error occurs in the servo drive, an alarm A. or CPF is displayed on the panel display.Refer to the following table to identify the cause of an alarm and the action to be taken.Contact your Yaskawa representative if the problem cannot be solved by the described corrective action.Alarm Number:Alarm Name Cause Investigative Actions Corrective ActionsA.020:Parameter ChecksumError 1(The parameter data inthe SERVOPACK isincorrect.)The power supply voltage sud-denly dropped. Measure the power supply voltage.Set the power supply voltage withinthe specified range, and set Fn005to initialize the parameter.The power supply went OFFwhile changing a parameter set-ting.Check the circumstances when thepower supply went OFF.Set Fn005 to initialize the parameterand then set the parameter again.The number of times that parame-ters were written exceeded thelimit.Check to see if the parameters werefrequently changed through the hostcontroller.The SERVOPACK may be faulty.Replace the SERVOPACK.Reconsider the method of writingparameters.Malfunction caused by noisefrom the AC power supply orgrounding line, static electricitynoise, etc.Turn the power supply to the SER-VOPACK OFF and ON again. If thealarm still occurs, the cause may benoise.Take countermeasures againstnoise.Gas, water drops, or cutting oilentered the SERVOPACK andcaused failure of the internalcomponents.Check the installation conditions. The SERVOPACK may be faulty.Replace the SERVOPACK.A SERVOPACK fault occurred.Turn the power supply to the SER-VOPACK OFF and ON again. If thealarm still occurs, the SERVO-PACK may be faulty.The SERVOPACK may be faulty.Replace the SERVOPACK.A.021:Parameter FormatError 1(The parameter data inthe SERVOPACK isincorrect.)The software version of SERVO-PACK that caused the alarm isolder than that of the writtenparameter.Check Fn012 to see if the set soft-ware version agrees with that of theSERVOPACK. If not, an alarm mayoccur.Write the parameter of anotherSERVOPACK of the same modelwith the same software version.Then turn the power OFF and thenON again.A SERVOPACK fault occurred. − The SERVOPACK may be faulty.Replace the SERVOPACK.A.022:System ChecksumError 1(The parameter data inthe SERVOPACK isincorrect.)The power supply voltage sud-denly dropped. Measure the power supply voltage. The SERVOPACK may be faulty.Replace the SERVOPACK.The power supply went OFFwhile setting an utility function.Check the circumstances when thepower supply went OFF.The SERVOPACK may be faulty.Replace the SERVOPACK.A SERVOPACK fault occurred.Turn the power supply to the SER-VOPACK OFF and ON again. If thealarm still occurs, the SERVO-PACK may be faulty.The SERVOPACK may be faulty.Replace the SERVOPACK.A.030:Main Circuit DetectorErrorA SERVOPACK fault occurred. − The SERVOPACK may be faulty.Replace the SERVOPACK.A.040:Parameter SettingError 1(The parameter settingwas out of the settingrange.)The SERVOPACK and servomo-tor capacities do not match eachother.Check the combination of SERVO-PACK and servomotor capacities.Select the proper combination ofSERVOPACK and servomotorcapacities.A SERVOPACK fault occurred. − The SERVOPACK may be faulty.Replace the SERVOPACK.The parameter setting is out ofthe setting range.Check the setting ranges of theparameters that have been changed.Set the parameter to a value withinthe setting range.The electronic gear ratio is out ofthe setting range.Check the electronic gear ratio. Theratio must satisfy:0.001< (Pn20E/Pn210) < 4000.Set the electronic gear ratio in therange: 0.001< (Pn20E/Pn210)< 4000.A.041:Encoder Output PulseSetting ErrorThe encoder output pulse (Pn212)is out of the setting range anddoes not satisfy the setting condi-tions.Check the parameter Pn212. Set Pn212 to a correct value.