Adjust The Holding Moment - HEIDENHAIN TNC 426 PB/M Technical Manual

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9. Adjust the holding moment:

7 7 7 7
Enter the following test program (static friction in axis Z):
LBL 1
L Z+2 R0 F50
L Z-2 R0 F50
CALL LBL 1/10
7 7 7 7 Use the integrated oscilloscope to record the actual shaft speed
(ACTUAL RPM) and the nominal current value (I NOMINAL).
7 7 7 7
Start the program.
7 7 7 7 With the feed rate override knob, adjust the motor speed to ± 10 rpm
(MP2020.x).
7 7 7 7 Determine the current (I NOMINAL) in both directions of rotation.
7 7 7 7 Calculate MP2630.x:
I NOML
----------------------------------------------------- -
MP2630.x =
+ I NOML
1 2
2
HEIDENHAIN Technical Manual TNC 426, TNC 430