HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual
Page 180
Sequence "Automatic passing over reference marks" (press the external START key).
MP1350.x = 3
Press the external START key
Trip dog
"Reference end position"
closed?
Machine traverse
in direction from
MP1320.x
Machine traverses in
inverted direction from
MP1320.x
Two successive reference marks
are traversed
Is the machine
outside the software
limit switch range?
Machine moves to
software limit switch
Machine stops
No
Yes
Yes
No
Yes
No
Trip dog
"Reference end position" is
closed before reference mark
is passed over
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