HEIDENHAIN TNC 426 PB/M Technical Manual page 711

December 2001
You can choose a larger input step for the traverse distance per rotation than
that calculated by the NC:
7 7 7 7
In MP7670.x, enter an interpolation factor.
7 7 7 7 In MP7645.x, enter an initialization parameter for the handwheel. The
parameters are evaluated by the HRA 110 and HR 410.
MP7640 Handwheel
Input: 0: No handwheel
1: Reserved
2: HR 130
3: Reserved
4: Reserved
5: Up to three HR 150 via HRA 110
6: HR 410
7 to 10: Reserved
MP7641 Entry of the interpolation factor
Input: 0: Through TNC keyboard
1: Through PLC Module 9036
MP7650 Counting direction for handwheel
As of software version:only before 280 474-07
Input: 0: Negative counting direction
1: Positive counting direction
MP7650 Handwheel counting direction for each axis
Format: %xxxxxxxxx
Input: Bits 0 to 8 correspond to axes 1 to 9
0: Negative counting direction
1: Positive counting direction
MP7660 Threshold sensitivity for electronic handwheel
Input: 0 to 65 535 [increments]
MP7670 Interpolation factor for handwheel
Input: 0 to 10
MP7670.0 Interpolation factor for low speed
MP7670.1 Interpolation factor for medium speed (only HR 410)
MP7670.2 Interpolation factor for high speed (only HR 410)
M4576 Locking the handwheel
W1062 Lock the handwheel for specific axes PLC
Electronic Handwheel
Set Reset
PLC PLC
PLC
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