HEIDENHAIN TNC 122 Technical Manual - Manual (Page 23)

22
TNC 122 9 Machine Integration 4/97
Sequence for “Automatic reference mark traverse” (pressing the machine START key).
MP1350.x = 1
Press the machine START key
Trip dog
"Reference end position"
closed?
Machine moves
in direction from
MP1320.x
Machine moves in
inverted direction from
MP1320.x
Reference mark is passed over
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