Siemens SINUMERIK 840D sl Programming Manual page 212

Measuring variants
2.5 Measure tool (milling)
Special issues when performing measurements with rotating spindle
● As standard, the feedrate and speed with the limit values defined in the general setting
● Using the general SD 54762 $SNS_MEA_FUNCTION_MASK_TOOL[Bit5], the user can
● If, when calling the measuring cycle, the spindle is stationary, then the direction of
NOTICE
If, when calling a measuring cycle, the spindle is already rotating, then this direction of
rotation is kept independent of the general SD 54674 $SNS_MEA_CM_SPIND_ROT_DIR!
Procedure
The part program or ShopMill program to be processed has been created and you are in the
editor.
212
data SD 54670 - SD 54677 for peripheral speed, speed, minimum feedrate maximum
feedrate and measuring accuracy, as well as the intended direction of spindle rotation for
measurement are calculated in a cycle (see Commissioning Manual
Operate (IM9) / SINUMERIK 840D sl
for measuring with rotating spindle")
Measuring is conducted by probing twice; the 1st probing action causes a higher
feedrate. A maximum of three probing operations are possible for measuring. If probing is
performed several times the speed is additionally reduced on the last probing operation.
By setting the general SD 54740 $SNS_MEA_FUNCTION_MASK[Bit19], this speed
reduction can be suppressed.
hide the cycle-internal calculation and enter the values for feedrate and speed via the
input screen form of the cycle.
To specify the values with bit 5 set in the general SD 54762
$SNS_MEA_FUNCTION_MASK_TOOL, the input fields in the screen form F1 (feedrate 1)
and S1 (speed 1), F2 (feedrate 2) and S2 (speed 2) or F3 (feed 3) and S3 (Speed 3) are
used. For the first probing, the values of F1 and S1 are effective, and for the second
probing the values F2 and S2. If S2=0, only one probing action is performed. If S3>0 and
S2>0, triple probing is performed, whereby for the 3rd probing, the values from F3 and S3
are effective.
The monitoring functions for the general setting data SD 54670 - SD 54677 are not
active!
rotation is determined from the general SD 54674 $SNS_MEA_CM_SPIND_ROT_DIR.
1. Press the "Measure tool" softkey in the vertical softkey bar.
2. Press the "Measure tool" softkey in the horizontal softkey bar.
The input window "Measure: tool" is opened.
, Chapter "Tool measurement in milling - monitoring
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
SINUMERIK
Measuring cycles