Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

10 Inspection, Maintenance, and Troubleshooting10.1.6 Troubleshooting of Alarm and WarningTable 10.6 Alarm Display and Troubleshooting (Cont’d)AlarmDisplayAlarm NameSituation at AlarmOccurrenceCauseCorrective ActionsA.83 AbsoluteEncoderBattery Error(Detected whenthe battery voltageis lower thanthe specifiedvalue 2 to 4 safter the controlpower supply isturned ON.)(Only when anabsolute encoderis connected.)When the controlpower supply wasturned ON.(Setting:Pn002.2=1)When the controlpower supply wasturned ON using anabsolute encoder.(Setting:Pn002.2=0)When the absolute encoder was used as an incremental,a SERVOPACK board fault occurred.The battery connection is incorrect.The battery voltage is lower than the specified value2.7 V.A SERVOPACK board fault occurred.Replace the SERVOPACK.Reconnect the battery.Replace the battery, and then turn ON the powerto the encoder.Replace the SERVOPACK.A.84 Encoder DataError(Detected on theencoder side.)Occurred when thecontrol power supplywas turned ON.A malfunction occurred in the encoder.A SERVOPACK board fault occurred.Turn the encoder power supply OFF and then ONagain. If this alarm occurs frequently, replace theservomotor.Replace the SERVOPACK.Occurred duringnormal operation.A malfunction occurred in the encoder due to externalnoise.Correct the wiring around the encoder by separatingthe encoder cable from the power line, or bychecking the grounding and other wiring.)An encoder fault occurred.If this alarm occurs frequently, replace the servomotor.A SERVOPACK board fault occurred.Replace the SERVOPACK.A.85 Encoder Overspeed(Detected whenthe encoderpower supplywas turned ON.)(Detected on theencoder side.)Occurred when thecontrol power supplywas turned ON.Occurred duringnormal operation.When the encoder power supply turns ON and theSEN signal is ON when using an absolute encoder,the servomotor runs at 200 min -1 or more.An encoder fault occurred.A SERVOPACK board fault occurred.An encoder fault occurred.A SERVOPACK board fault occurred.Turn ON the encoder power supply when the servomotorruns at a speed less than 200 min -1 .Replace the servomotor.Replace the SERVOPACK.Replace the servomotor.Replace the SERVOPACK.A.86 EncoderOverheated(Only when anabsolute encoderis connected.)(Detected on theencoder side.)Occurred when thecontrol power supplywas turned ON.Occurred duringnormal operation.An encoder fault occurred.A SERVOPACK board fault occurred.The ambient temperature around the servomotor istoo high.The servomotor load is greater than the rated load.Replace the servomotor.Replace the SERVOPACK.The ambient temperature must be 40°C or less.The servomotor load must be within the specifiedrange.An encoder fault occurred.Replace the servomotor.A SERVOPACK board fault occurred.Replace the SERVOPACK.A.b1ReferenceSpeed InputRead Error(Detected whenthe Servo is ON.)Occurred when thecontrol power supplywas turned ON.Occurred duringnormal operation.A SERVOPACK board fault occurred.A malfunction occurred in reading section of thespeed reference input.Replace the SERVOPACK.Clear and reset the alarm and restart the operation.A SERVOPACK board fault occurred.Replace the SERVOPACK.A.b2ReferenceTorque InputRead Error(Detected whenthe servo is ON.)Occurred when thecontrol power supplywas turned ON.Occurred duringnormal operation.A SERVOPACK board fault occurred.A malfunction occurred in the reading section of thetorque reference input.A SERVOPACK board fault occurred.Replace the SERVOPACK.Clear and reset the alarm and restart the operation.Replace the SERVOPACK.10-12