Compensate The Sliding Friction - HEIDENHAIN TNC 426 PB/M Technical Manual

Table of Contents

December 2001

10. Compensate the sliding friction:

Select operation with velocity feedforward control

Enter the following test program (sliding friction in the X axis):

L X+2 R0 F50

L X-2 R0 F50

CALL LBL 1/10

Use the integrated oscilloscope to record the actual shaft speed

(ACTUAL RPM) and the nominal current value (I NOMINAL).

Start the test program.

With the feed rate override knob, adjust the motor speed to 10 rpm

Determine the current (I NOMINAL) in both directions of rotation.

Calculate MP2610.x:

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Change the test program so that the motor rotates at its rated speed.

Restart the test program.

Determine the current (I NOMINAL) for the rated shaft speed.

Commissioning