HEIDENHAIN TNC 620 User Manual page 575

16.8 Optional program-run interruption
Application
The behavior of this function varies depending on the
respective machine.
Refer to your machine manual.
The TNC optionally interrupts program run at blocks containing M1.
If you use M1 in the Program Run mode, the TNC does not switch
off the spindle or coolant.
Do not interrupt the program run or test run at
blocks containing M1: Set the soft key to OFF
Interrupt the program run or test run at blocks
containing M1: Set the soft key to ON
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
Optional program-run interruption 16.8
16
575