20 – 350 HEIDENHAIN Service Manual iTNC 530
8 Switch the position display to LAG and observe the display.
8 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).
8 Reset the machine parameters and 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 20 – 351.
Proposal 2:
8 Shut down the control and switch off the machine.
8 Disconnect the nominal speed cable from the control.
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 concerned).
8 Switch on the main switch of the machine.
8 Do not acknowledge the Power interrupted message, but call the machine parameter list
immediately.
8 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).
8 Switch on the machine.
8 Check the controller enabling on the servo amplifier and establish it, if required.
(If necessary, ask the machine manufacturer)!
8 Select Manual operation, set the display to the actual value and set the axis to zero.
8 Adjust the servo amplifier to standstill as close as possible. The axis movement can be seen
on the actual value display and possibly on a pulley.
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 20 – 351.
You can use the integrated oscilloscope with the settings s actl., s noml.,
s diff. --> See “Integrated Oscilloscope” on page 10 – 99.
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 27 – 459,
See “X9: Analog output 7 to 13” on page 27 – 459) 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 speed cable is included in the offset adjustment of
the servo amplifier.
To Next Page
Loading...
