HEIDENHAIN iTNC 530 HSCI Service Manual page 356

Offset fine
adjustment in
the control
The axes to be compensated must be in the position control loop. --> If necessary, ask the machine
operator!
Orient the spindle with M19.
The iTNC displays the offset values of the analog axes/spindles in the dialog line.
The values show the setting of the voltage in 0.15-mV steps.
Display value 10 means: 10 · 0.15 mV = 1.5 mV.
February 2012
Note
Before you carry out offset fine adjustment via code number, you must first adjust the offset at
the servo amplifier!
With the offset fine adjustment via code number the control can only compensate ±100 mV.
This corresponds to 1% of the ±10 V interface.
Thus, insufficient offset adjustment at the servo amplifier cannot be compensated with
adjustment via code number.
Select the Programming and Editing operating mode.
Call the code number window.
Note
The displayed offset value consists of the offset values that are generated in the analog servo
amplifier and in the control.
Press the respective soft key ...
... to carry out offset fine adjustment.
The values are stored in the nonvolatile memory. Offset adjusting via code number
compensates the current offset values of the entire control loop. Later changes in
offset are not compensated.
... not to carry out offset fine compensation, or to cancel a previous compensation.
... to exit the menu without making any changes.
Enter and confirm the code number.
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