4 – 66 HEIDENHAIN Technical Manual TNC 426, TNC 430
MP7645 Initializing parameter for handwheel PLC
RUN
6 – 385
MP7645.0 Layout of the handwheel keypad for HR 410
Input: 0: Evaluation of the keys by the NC,
including LEDs
1: Evaluation of the keys by PLC
MP7645.0 Assignment of a third handwheel via axis selector switch
S2, when MP7645.2 = 0
Input: 0:
Switch position 1 (at the left stop)
3rd handwheel axis Z
Switch position 2
3rd handwheel axis IV
Switch position 3
3rd handwheel axis V
1:
Switch position 3
3rd handwheel axis Z
Switch position 4
3rd handwheel axis IV
Switch position 5
3rd handwheel axis V
2:
Switch position 3
3rd handwheel axis Z
Switch position 4
3rd handwheel axis IV
Switch position 5
3rd handwheel axis V
MP7645.1 Fixed assignment of third handwheel if MP7645.2 = 1
Input: 4: Axis Z
8: Axis IV (MP410.3)
16: Axis V (MP410.4)
MP7645.2 Assignment of a third handwheel via axis selector switch or
MP7645.1
Input: 0: Assignment by axis selection switch
according to MP7645.0
1: Assignment by MP7645.1
MP7645.3-7 No function
MP Function and input Software
version and
behavior
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