26 – 426 HEIDENHAIN Service Manual iTNC 530 HSCI
Functional test by
means of the logic
diagram
8 Switch on the machine.
8 Insert the touch probe.
8 Press the EMERGENCY STOP button as a precaution.
8 Call the logic diagram. --> See ”The LOGIC diagram” on page 11 – 124.
8 Enter the operands M4050 and M4051 and set the trigger to M4051.
8 Start recording.
8 Check the marker 4050.
If the probe is ready, this marker has the status zero.
8 Deflect the stylus by hand.
8 Check the marker 4051.
If the stylus is deflected, this marker changes to one.