Measuring Cycles for Turning Machines
6.3 CYCLE982 tool: Measure turning and milling tools
Explanation of example
The spindle is positioned at 15 degrees with SPOS. Measuring point P1 is approached first.
The measuring process is initiated in the negative Z direction (_MA=1, starting position) with
measuring velocity 300 mm/min (_VMS=0, _FA>1). The switching signal is expected by the
probe 1 (_PRNUM=1) within a distance of 2 x _FA=2 mm. Otherwise, an alarm will be
triggered. Measurement is performed once (_NMSP=1). After successful measurement, tool
T3 is _FA=3 mm + tool radius in front of the probe.
The probe is then traveled around as shown in the figure. On the opposite side of the probe
(P2) measurement is performed with a rotated spindle (by 180 degrees). The same cutting
edge is then measured. Measurement is performed with the spindle stopped and without
reversal. After successful measurement, tool T3 is _FA=3 mm + tool radius in front of the
probe. The spindle remains in this position.
The radius and length L2 are determined precisely and tool parameters DP6 and DP4 of T3,
D1 are entered. The values in result parameter array OVR[ ] are also entered.
In block N180, N190, the tool returns to the starting position and the program then ends.
Automatic tool measurement
This cycle and its various measuring variants are for measuring tools automatically:
_MVAR=2: Turning tools (machine-related)
_MVAR=12: Turning tools (workpiece-related)
_MVAR=xxx02: Milling tools, drills (machine-related)
_MVAR=xxx12: Milling tools, drills (workpiece-related)
Workpiece-related or machine-related measurement require an appropriately calibrated tool
probe (see section "Calibrating tool probes" or "Calibrate tool probe automatically (machine
With milling tools/drills, the measurement is further specified in the 3rd to 5th digits of
parameter _MVAR. Here, SD 42950: TOOL_LENGTH_TYPE must be = 2
The function is as for non-automatic measurement.
In automatic measurement, all offsets are determined. These are then defined with the tool
● Turning tool:
● Milling cutter:
– Both lengths (2 measurements),
– for cutting edge positions SL = 5, 6, 7, and 8, only one length (1 measurement)
Length according to axial or radial position (1 measurement)
both lengths and radius (4 measurements), if the radius is specified as R=0, only both
lengths are established (2 measurements).
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0