1048 HEIDENHAIN Technical Manual iTNC 530 HSCI
Step 7: Compensate the static (stick-slip) friction
Enter the backlash, if any exists.
Enter the following test program (static friction in the Y axis):
LBL 1
L X+400 IY+0.5 R0 F200
L X0 IY+0.5 R0
CALL LBL1 REP 100/20
Set the machine parameters:
• MP1511.x = 0
• MP1512.x = 20
• MP1513.x = 0
With the integrated oscilloscope, display the following error in the Y axis (Y
SDIFF).
Start the program and adjust the feed-rate override so that the following
error caused by static friction becomes visible.
Increase the feed rate until the following error is no longer measurable.
From the current contouring feed rate, calculate the feed rate specific to the
Y axis and enter the value in MP1513.1.
Adjust the feed rate until the following error is measurable again.
Increase MP1511.x in increments of 10 000 until the following error is no
longer measurable.
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