Phase 2: Traversing To The Target Point - Siemens SINUMERIK 840D Function Manual

R1: Referencing
10.6 Referencing with distance-coded reference marks
Abort criterion
If the parameterized number of reference marks is not detected within the parameterized
distance, the machine axis is stopped and reference point traversing is aborted.
MD34060 $MA_REFP_MAX_ MARKER_DIST (max. distance to the reference mark)
Features of Phase 1
After Phase 1 is successfully completed, the actual value system of the machine axis is
synchronized.
10.6.5

Phase 2: Traversing to the target point

Phase 2: Start
Phase 2 is automatically started when Phase 1 has been completed without an alarm.
Initial situation:
● The machine axis is positioned directly behind the last of the parameterized number of
reference marks.
● The actual value system of the machine axis is synchronized.
Phase 2: Sequence
In Phase 2, the machine axis completes reference point approach by traversing to a defined
target position (reference point). This action can be suppressed in order to shorten the
reference point approach:
MD34330 $MA_STOP_AT_ABS_MARKER = <value>
Value
0
1
Travel to target position (normal case)
The machine axis accelerates to the parameterized reference point position velocity and
travels to the parameterized target point (reference point):
MD34070 $MA_REFP_VELO_POS (reference point positioning velocity)
MD34100 $MA_REFP_SET_POS (reference point value)
The machine axis is referenced. To identify this, the NC sets an interface signal for the
measuring system that is currently active:
DB31, ... DBX60.4/60.5 (referenced/synchronized 1/2) = 1
314
Meaning
Travel to target position
No travel to target position
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA