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

8 Operation8.5.3 Adjusting Offset8.5.3 Adjusting OffsetWhen using the speed control, the servomotor may rotate slowly even if 0 V is specified as the analog voltagereference. This happens if the host controller or external circuit has a slight offset (in the units of mV) in the referencevoltage. Adjustments can be done manually or automatically by using the panel operator or digital operator.Refer to 7.2 Operation in Utility Function Mode (Fn).The automatic adjustment of the analog (speed, torque) reference offset (Fn009) automatically measures theamount of the offset and adjusts the reference voltage.The SERVOPACK automatically adjusts the offset when the host controller or external circuit has the offset inthe reference voltage.ReferencevoltageReferencevoltageOffset automaticallyadjusted in SERVOPACK.OffsetSpeedreferenceAutomaticoffsetadjustmentSpeedreferenceAfter completion of the automatic adjustment, the amount of offset is stored in the SERVOPACK. The amount ofoffset can be checked in the speed reference offset manual adjustment mode (Fn00A). Refer to 8.5.3 (2) ManualAdjustment of the Speed Reference Offset.8-40