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Cause within the
control loop
December 2001
Note
Available as of NC software 280 470-08 and 280 472-01!
If axis movement is measured with a linear encoder, the TNC can compensate
the play between the motor and the table. At the same time, the reversal
spikes during circular movements are compensated: machine parameters
MP711 to MP716 for "Compensation of reversal spikes" are not necessary.
Compensation:
7 7 7 7
In MP750, enter the reversal error in mm.
7 7 7 7
In MP752, enter the time in which the distance to be compensated should
be traversed.
MP750.0-8
Backlash in axes 1 to 9
Input:
-1.0000 to +1.0000 [mm] or [°]
MP752.0-8
Compensation time for backlash in axes 1 to 9
Input:
0 to 1000 [ms]
Example:
MP750: 0.03 mm
MP752: 15 ms
For every change in direction, a nominal speed command signal is output for
15 ms, which corresponds to a feed rate of 120 mm/min:
0.03 mm
----------------------- -
=
120 mm/min
15 ms
Axis Error Compensation
6 – 37
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