6 – 286 HEIDENHAIN Technical Manual TNC 426, TNC 430
Automatic
activation of M134
In the standard setting, a transition element is inserted for positioning with
rotary axes at non-tangential transitions (depending on the acceleration, jerk
and tolerance). With M134, an exact stop is made at these transitions:
7
77
7 Enable the automatic activation of M134 with MP7440 bit 6.
MP7440 Output of M functions
Format: %xxxxxxx
Input: Bit 0 – Program stop with M06:
0: Program stop with M06
1: No program stop with M06
Bit 1 – Modal cycle call M89:
0: Normal code transfer of M89 at beginning of block
1: Modal cycle call M89 at end of block
Bit 2 – Program stop with M functions:
0: Program stop until acknowledgment of the M function
1: No program stop: No waiting for acknowledgment
Bit 3 – Switching of k
v
factors with M105/M106:
0: Function is not in effect
1: Function is effective
Bit 4 – Reduced feed rate in the tool axis with M103
0: Function is not in effect
1: Function is effective
Bit 5 – Reserved
Bit 6 – Automatic activation of M134
0: M134 must be activated in the NC program
1: M134 is automatically activated when an NC program is
selected
Error messages
during cycle call
Before execution of a fixed cycle, the spindle must be started with M3 or M4.
If this is not the case, the error message Spindle ? appears. If you are using
a high speed cutting (HSC) spindle that is started by its own M function (not
M3 or M4):
7
77
7 Suppress the error message Spindle ? with MP7441 bit 0.
If a positive depth is programmed in machining cycles, the error message
Enter depth as negative appears:
7
77
7 Suppress the error message Enter depth as negative with MP7441 bit 2.
MP7441 Error message during cycle call
Format: %xxx
Input: Bit 0 –
0: Error message Spindle ? is not suppressed
1: Error message Spindle ? is suppressed
Bit 1 – Reserved, enter 0
Bit 2 –
0: Error message Enter depth as negative is suppressed
1: Error message Enter depth as negative is not suppressed
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