HEIDENHAIN TNC 150 B Mounting Instructions page 63

8.1.9 Integral factor X, Y, Z, IV
The integral factor (parameter 28 to 31) affects an automatic offset-adjustment with small position deviations
(the offset adjustment of the servo-amplifier must be carried out before definition of the parameters 28 to 31)
The parameters are optimised as follows:
Parameter 65: "0";
Machine remains in position in closed loop condit on.
c
Parameter 28 (for X-axis) :
Increase entry value until the closed loop condition distinctly
changes (observe position displays)
I7
Parameter 28: Decrease entry value to a point
7
where the closed loop condition normalises again*.
1
*With drives which are slightly
backlash-prone, the entry value
is "0".
Perform adjustment in the Y, Z and IV-axis also.
63