HEIDENHAIN iTNC 530 HSCI - Cause Within the Control Loop

650 HEIDENHAIN Technical Manual iTNC 530 HSCI
Cause within the
control loop
If axis movement is measured with a linear encoder, the iTNC can
compensate the play between the motor and the table. At the same time, the
reversal spikes during circular movements are compensated: machine
parameters MP715 to MP716 for "Compensation of reversal spikes" are not
necessary.
Compensation:
 In MP750.x, enter the reversal error in mm.
 In MP752.x, enter the time in which the distance to be compensated should
be traversed.
MP750.x Backlash in axes 1 to 9
Input: –9.9999 to +9.9999 [mm] or [°]
MP752.x Compensation time for reversal error
Input: 0 to 1000 [ms]
Example:
MP750.x: 0.03 mm
MP752.x: 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:
15 ms
= 120 mm/min
0.03 mm