Adjusting The Electrical Offset (Drift Adjustment) - HEIDENHAIN iTNC 530 Service Manual

20.2.4 Adjusting the Electrical Offset (Drift Adjustment)

General An offset adjustment is required or recommendable, in case of the following:
Offset Adjustment Analog servo amplifiers are no HEIDENHAIN products.
at servo amplifier Follow the instructions of the servo manufacturer (operating instructions, etc.)!
Here are two proposals.
Proposal 1:


20 – 346
The axis drifts.
Servo lag of the axis at standstill is impermissibly high.
You have exchanged the MC.
You have exchanged the servo amplifier.
You have exchanged the motor.
You have replaced the motor brushes.
You have replaced cables or electrical lines at the machine.
If you receive the error message EXCESSIVE OFFSET <AXIS>.
Note
The drift adjustment only needs to be carried out with analog axes.
Check or set following machine parameters (if you change the machine parameter, please
take a note of the original values).
MP 1080.x (integral factor for offset) :
MP 1391.x, 1392.x (velocity feedforward control) :
MP 7290.x (display step) :
Switch on the machine completely.
 Select the Manual operating mode
 Select the Programming and Editing operating mode
 Call window for code number


 End compensation
Enter the code number
Confirm
0 (switched off)
1 (switched on)
6 (0.1 µm)
HEIDENHAIN Service Manual iTNC 530