HEIDENHAIN iTNC 530 Service Manual page 307

Position encoder Function when MP1350.x = 1
with one reference
mark
May 2006
Closed
Open
Traverse direction MP1320
Press the external START key
No
"Reference end position"
Machine traverse in direction from
MP1320 with velocity from
MP1330.x to the trip dog
"Reference end positon"
Machine traverse in inverted direction
from MP1320 and with reduced velocity from MP1331.x
The first reference pulse after opening of the trip dog
"Reference end position" is evaluated
Trip dog
closed?
Is the
machine outside
the software limit
switch range?
Machine moves to
No
software limit switch
Machine stops
Reference marks
Trip dog
"Reference end position"
Yes
Yes
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