User Manual Of EL7-EC** AC Servo
65
Pr0.03
Label
Real time auto stiffness
adjusting
Mode
F
Range
50 ~ 81
Unit
—
Default
70
Index
2003h
Activation
Immediate
Valid when Pr0.03 = 1,2
Low
High
Mechanical stiffness
Servo gain
Responsiveness
81.80
……………………………
70.69.68
…………………………
51.50
High
High
Low
Low
Lower values ensure better system responsiveness and mechanical stiffness but machine
vibration might occur, please set accordingly.
Pr0.04
Label
Inertia ratio
Mode
F
Range
0~20000 Unit
%
Default
250
Index
2004h
Activation
Immediate
Pr0.04=( load inertia/motor rotational inertia)×100%
Notice:
Set inertia ratio according to actual load inertia. When both are uniform, actual motor velocity loop
responsiveness and gain settings will be consistent. If inertia ratio is greater than actual value,
velocity loop gain settings will be higher and vice versa.
