Siemens SINUMERIK 840D sl Programming Manual page 204

Measuring variants
2.5 Measure tool (milling)
Before the first calibration operation in the plane, e.g. plus direction of the 1st axis, the
precise center of the probe is determined in the other axis (2nd axis), as long as the probe
can be approached in this axis. Additional movements are performed in the plane for this
purpose.
3
4
Figure 2-31
①
②
③
④
Preconditions
● The exact length and radius of the calibration tool must be stored in a tool offset data set.
● Tool type:
● The machining plane G17 or G18 or G19 must be defined prior to the cycle call.
● The approximate coordinates of the tool probe must be entered in the general setting
● The probe must be reached within the total path 2 · DFA.
204
2
Determining the probe center in the 2nd axis of the plane, calibration +X
General SD 54625 $SNS_MEA_TP_TRIG_MINUS_DIR_AX1
General SD 54626 $SNS_MEA_TP_TRIG_PLUS_DIR_AX1
General SD 54627 $SNS_MEA_TP_TRIG_MINUS_DIR_AX2
General SD 54628 $SNS_MEA_TP_TRIG_PLUS_DIR_AX2
This tool offset must be active when the measuring cycle is called.
– Calibration tool (type 725)
– Milling tool (type 120)
data before calibration starts (see Commissioning Manual
SINUMERIK 840D sl
, Chapter "Tool measurement in milling").
These values are used for automatic approach to the probe with the calibration tool and
their absolute value must not deviate from the actual value by more than the value in
parameter TSA.
1
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
SINUMERIK Operate (IM9) /
Measuring cycles