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

8 Operation8.4.7 Multiturn Limit Setting8.4.7 Multiturn Limit SettingWARNING• The multiturn limit value must be changed only for special applications. Changing it inappropriately or unintentionallycan be dangerous.• If the Multiturn Limit Disagreement alarm (A.CC) occurs, check the setting of parameter Pn205 to be surethat it is correct.If Fn013 is executed when an incorrect value is set in Pn205, an incorrect value will be set in the encoder. The alarmwill disappear even if an incorrect value is set, but incorrect positions will be detected, resulting a dangerous situationwhere the machine will move to unexpected positions and machine break and personal accident will occur.The parameter for the multiturn limit setting sets the upper limit for the multiturn data from the encoder intoPn002 = n0 when using an absolute encoder. When the rotation amount exceeds this setting, the encoderrotation amount returns to 0.Pn205 Multiturn Limit SettingSpeed Position TorqueSetting Range Setting Unit Factory Setting Setting Validation0 to 65535 Rev 65535 After restartThis parameter is valid when Pn002 = n0 (when the absolute encoder is used).The range of the multiturn data will vary when this parameter is set to anything other than the factory setting.Factory Setting (=65535)Without Factory Setting (≠65535)+32767ForwarddirectionReversedirectionPn205 setting valueForwarddirectionReversedirectionMultiturndata0Multiturndata-32768 No. of revolutions• When Set to Anything Other than the Factory Setting(≠65535)When the motor rotates in the reverse direction with the multiturndata at 0, the multiturn data will change to the setting of Pn205.When the motor rotates in the forward direction with the multiturndata at the Pn205 setting, the multiturn data will change to 0.Set the Pn205 to (the desired multiturn data -1).• Encoder Multiturn Limit Disagreement0No. of revolutionsPosition detection(Revolution counter)Detection amountPosition (Absolute encoder)Travel distance/motor = 1 revolutionIf the Pn205 value is changed from the factory setting and the power is turned OFF then ON, an alarm will be displayed.AlarmAlarm Name Alarm Code Outputs MeaningDisplayA.CC Multiturn Limit Disagreement ALO1 ALO2 ALO3 Different multiturn limits have been setON (L) OFF (H) ON (L) in the encoder and SERVOPACK.8-36