Suppressing Touch Probe Monitoring: M141 - HEIDENHAIN TNC 620 User Manual

Miscellaneous Functions | Miscellaneous functions for path behavior

Suppressing touch probe monitoring: M141

Standard behavior
If the stylus is deflected, the control issues an error message as
soon as you want to move a machine axis.
Behavior with M141
The control moves the machine axes even if the touch probe is
deflected. This function is required if you wish to write your own
measuring cycle in connection with measuring cycle 3 in order to
retract the stylus by means of a positioning block after it has been
deflected.
Danger of collision!
The function M141 suppresses the corresponding error message
if the stylus is deflected. The control does not perform an
automatic collision check with the stylus. Because of this
behavior, you must check whether the touch probe can retract
safely. There is a risk of collision if you choose the wrong
direction for retraction.
Carefully test the NC program or program section in the
Program run, single block operating mode
M141 functions only for movements with straight-line
blocks.
Effect
M141 is effective only in the NC block in which M141 is
programmed.
M141 becomes effective at the start of the block.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
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