21 – 356 HEIDENHAIN Service Manual iTNC 530 HSCI
8 Cancel compensation for axes/spindles.
8 Switch the position display to LAG and observe the display.
8 Adjust the offset at the servo amplifier until the individual axes/spindles either display the value 0
or oscillate around 0 (approximate value ± 3 - 5 µm).
8 Reset the machine parameters and the position display to their original values.
8 Carry out an offset fine adjustment via code number 75368.
--> See ”Offset fine adjustment in the control” on page 21 – 357.
Proposal 2:
8 Shut down the control and switch off the machine.
8 Disconnect the nominal speed value cable from the CMA-H.
8 Bring the nominal value of the axis to be adjusted to zero potential (short-circuit the ±10 V line
with the 0 V line of the axis/spindle concerned).
8 Switch on the power switch of the machine.
8 Do not acknowledge the Power interrupted message, but call the machine parameter list
immediately.
8 Set the parameter MP120.x / MP121.x to zero. --> No output of the nominal value; axes/spindles
are only displayed (if required, deselect reference point traverse for the axes in MP1340.x).
8 Switch on the machine.
8 Check the controller enabling on the servo amplifier and activate it, if required.
(If necessary, ask the machine manufacturer!)
8 Select Manual operation, set the display to ACTL value and set the axis to zero.
8 Adjust the servo amplifier as close to standstill as possible. The axis/spindle movement can be seen
on the actual value display (and possibly on a pulley in addition).
8 Restore the original condition (cabling, parameters).
8 Carry out offset fine adjustment with the code number 75368. -->See ”Offset fine adjustment in the
control” on page 21 – 357
Before the adjustment at the servo amplifier, offset fine adjustment by the control is cancelled.
You can also use the integrated oscilloscope with the settings s actl., s noml., s diff.
--> See ”Integrated oscilloscope” on page 10 – 95.
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