L977 Measure Slot (Paraxial) - Siemens SINUMERIK 840 User Manual

10.91
5.2.3

L977 Measure slot (paraxial)

Function and application
The measuring cycle measures points P1 and P2 inside the slot in the measuring axis. These
two measured values are used to calculate the actual value of the slot and the position of the
slot centre point in the measuring axis in relation to the workpiece zero point (see Fig. 5.11).
The probe is located at the determined slot centre point on completion of measurement.
Refers to the slot width only:
An empirical value stored in the SDC is allowed for with the correct sign.
In addition, averaging is performed over several parts and the tolerance bands are checked,
(see Section 1.7.1).
No automatic offset is carried out or alternatively length compensation or radius offset
(difference halved) is performed, depending on the definition of R10.
Preconditions:
• The probe must be called with tool offset and without G53.
• The probe must be positioned at the slot centre point in the measuring axis, the probe ball
being positioned in the applicate inside the slot.
©
Siemens AG 1990 All Rights Reserved
SINUMERIK 840/850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres
6FC5197- AB70
5.2.3 L977 Measure slot (paraxial)
5–23