
H.DETAILS OF HIGH-SPEED AND HIGH-PRECISION ADJUSTMENT APPENDIX B-65270EN/05
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(e) Disabling backlash acceleration after stop
The optimum acceleration amount after a long stop may slightly be
different from that at the time of adjustment using an arc. This
phenomenon is due to the difference in friction, backlash, and
machine torsion in the stopped state. The figure given below shows
the bad effect of backlash acceleration, where a 3-µm overshoot is
generated at the time of 10-µm step movement. As a solution to this
problem, a function to disable backlash acceleration after a stop can be
used.
[Parameters for the function for disabling backlash acceleration after a
stop]
Parameter No.
15i 30i,16i,etc.
Standard value Description
1883#7 2005#7 1 Static friction compensation function
2696#7 2283#7 1 Function for disabling backlash acceleration after a stop
1966 2073 5 Judgment parameter for stop state (ITP)
1964 2071 0 Static friction compensation function enable time
1965 2072 0 Static friction compensation value
(*) This function uses the parameters for the static friction
compensation function.
10µm 10µm
Overshoot present Overshoot not present
When this function is disabled When this function is enabled