M Series AC Servo
User Manual
106
Rev. 1.0
7/31/2019
400-820-9661
7.4.3.3 Analog Input Offset
In some cases, even when host controller set the analog command to 0V, the servo motor might still rotate
slowly. This is caused by voltage bias from the analog device. M servo suite can automatically offset the
analog voltage bias, or customers can manually tuning the offset by change parameter P-53 (AV2).
Parameter Name Data Range
Default
value
Unit Description
P-53 (AV2) Analog input 2 offset -10~10 0 V Set Analog input 2 offset
NOTE: if you need to view or set the offset voltage value on drive
’
s control panel, please refer to
following calculation:
Drive display value=
x 2730
Where
is target setting offset, unit Voltage (V)
Setting Via Software
7.4.3.4 Analog Deadband
In analog control mode, even when the input voltage is 0V, it is impossible to ensure input voltage is
absolute 0V due to external interferences. In some cases, it might case motor turn slowly in either
direction. Therefore, it is highly necessary to setup a reasonable deadband value to prevent this issue.
It can be set by M servo suite software and P-57 (AD2) directly from the drive.
Parameter Name Data Range
Default
value
Unit Description
P-57 (AD2) Deadband for analog input 2 0~255 0 mV Set deadband for analog input 2
Setting Via Software
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