User manual of EL8-EC***F AC Servo
255
Motion
1. Command acceleration should be continuously low to prevent deviation
change during drastic changes in acceleration.
2. Callback or overtravel might exist in positioning; sigmoid signal command
might improve the problem.
Related parameters
Parameter
Label
Description
Pr2.50
Model following
control
0
:
Model following control - Default
1
:
Zero tracking control
Pr2.53
Dynamic friction
compensation
coefficient
Range: 0-1000, unit: 0.1%
Unit
:
Changes in torque with the effect of friction on
rotational speed.
Only valid when MFC is activated
Pr0.00
Model
following
bandwidth
If Pr0.00 = 0, MFC and ZTC is deactivated.
When Pr2.50 = 1 (Zero tracking control), higher
bandwidth will improve following performance but noise
will be higher.
Set the following parameters to default
Pr2.51
Velocity feedforward
compensation
coefficient
Default value = 0 for zero tracking control.
Pr2.52
Torque feedforward
compensation
coefficient
Pr2.54
Overtravel time
constant
Pr2.55
Overtravel
suppression gain