6.1 Parameter
B6-63
ME0384-4A
No. Problems Adjustment method
6
The static friction of the
load is large and travel
start is slow
• The load inertia is large
and response is poor
when stopping
• Operation time needs to
be shorter
Set Parameter No. 71 "Positional Feedforward Gain".
Estimated setting is from 10 to 50. As the set value
increases, the deviation amount is reduced and
responsiveness improves.
Setting a high value may cause vibration or noise.
• Adjust Parameter No. 7 "Servo Gain Number" and
Parameter No. 31 "Velocity Loop Proportional Gain" to
further improve responsiveness.
7 There is a shock when
starting or stopping
• Set Parameter No. 55 "Position Command Primary Filter
Time Constant" to about 50 ms.
If no improvement is observed, increase gradually. If
improvement is observed, gradually lower the set value
to the limit. If this setting is made, the settling time will be
extended and the tact time will increase. Positioning
accuracy also deteriorates.
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