HEIDENHAIN iTNC 530 Service Manual page 347

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Proposal 2:
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May 2006
Axes to be adjusted must be in control (if necessary, ask the machine manufacturer).
Switch position display to LAG.
Adjust the offset at the servo amplifier until the individual axes either display the value 0 or
oscillate around 0 (approximate value ± 3-5 µm).
Note
Use also the integrated oscilloscope with the settings s actual, s nominal, s diff.
--> See "Integrated Oscilloscope" on page 8 – 49.
Reset the machine parameters and the position display to the original values.
Carry out offset fine adjustment with the code number 75368.
-->See "Offset fine adjustment by code number" on page 20 – 348
Switch off main switch of machine.
Disconnect the nominal speed value cable from the control.
Bring the nominal value of the axis to be adjusted to zero potential (short-circuit the ± 10 V
line with 0 V line of the corresponding axis).
Note
You can also produce a D-Sub connector for every analog nominal value interface X8 and X9.
There is a bridge between ± 10 V and 0 V (See "X8: Analog output 1 to 6" on page 13 – 144;
See "X9: Analog output 7 to 13" on page 13 – 144) for every channel in these connectors.
Connect the corresponding connector to the nominal speed value cable that you have
disconnected from the control (X8, X9).
Advantage of this method: The nominal value cable is included in the offset adjustment of
the servo amplifier.
Switch on main switch of machine.
Do not acknowledge the Power interrupt message. Call machine parameter list.
Set parameter 120.x to zero. --> No nominal value output, only display of axes.
(If necessary, deselect the reference point traverse in MP 1340.x).
Switch on the machine completely.
Establish the controller enabling on the servo amplifier or check whether it is on.
(if necessary, ask the machine manufacturer)!
Select Manual operation, set the display to the actual value and set the axis to zero.
Adjust the servo amplifier ideally to standstill. The axis movement can be seen on the actual
value display and possibly on a pulley.
Restore original condition (cabeling, parameters).
Carry out offset fine adjustment with the code number 75368. -->See "Offset fine adjustment
by code number" on page 20 – 348
20 – 347