HEIDENHAIN iTNC 530 Technical Manual page 368

6 – 124
U [V]
Warning
If the k factor that you select is too large, the system will oscillate around
v
the forward-fed nominal velocity value.
Unlike operation with following error, you must also enter the optimum k
factor for each axis when operating with interpolated axes.
You can selectively increase the contour accuracy with a higher k
k factor is activated with M105:
v
7 In MP1515.x, define a second set of k
M105.
M105 also influences compensation of reversal spikes during circular motion.
With M106 you can switch back to the original set of k
7 Enable the M functions M105/M106 with MP7440, bit 3.
MP1510.x k factor for velocity feedforward control
v
Input: 0.100 to 1000.000 [(m/min)/mm]
MP1515.x k factor for velocity feedforward control effective after
v
M105
Input: 0.100 to 20.000 [(m/min)/mm]
MP7440 Output of M functions
Format: %xxxxx
Input: Bit 3 – Switching the k
0: Function is not in effect
1: Function is effective
factors and activate them with
v
factors:
v
factors with M105/M106:
v
HEIDENHAIN Technical Manual iTNC 530
t [ms]
v
factor . This
v