Siemens SINUMERIK 840D sl Programming Manual page 142

Measuring variants
3.3 Measure workpiece (milling)
The measured difference of the groove width is used as basic variable for a tool offset, the
position of groove zero point, as basis of a work offset.
Measure: Groove (CYCLE977)
Requirements
● The probe must be active as tool.
● Tool type of the probe:
– 3D multi probe (type 710)
– Mono probe (type 712)
Note
The following measuring methods are only possible in the axes of the plane:
● 3D probe with spindle reversal (differential measurement)
● Align 3D probe
The probe types 712, 713 and 714 generally cannot be used for these measuring methods.
Starting position before the measurement
The probe should be positioned with the probe ball center in the measuring axis approximately
at the center of the groove and at the measuring height. For a protection zone, the probe ball
should be positioned in the measuring axis approximately centered to the groove and at a
height above the protection zone. With the infeed path that has been entered, it must be
guaranteed that from this height the desired measuring height in the groove can be reached.
Note
If too large a measurement path DFA has been selected so that the protection zone is violated,
then the distance is reduced automatically in the cycle. However, there must be sufficient room
for the probe ball.
142
Measure: Groove with protection zone (CY‐
CLE977)
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring cycles