6 – 432 HEIDENHAIN Technical Manual TNC 426, TNC 430
N → M: Manual tool
follows a normal
tool
With this change sequence, two pocket numbers or two tool numbers must
be transferred in succession. M4520 indicates that another TOOL CALL
strobe (M4073) will follow. Regardless of marker M4540, the pocket number
of the old tool and tool number zero are transferred first.
Zero means clear the spindle!
7
77
7 Acknowledge with M4093. Then the pocket number –1 and tool number of
the new, called tool are transferred.
Pocket number –1 means: no pocket in the tool magazine!
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
W264
M4541
W262
M4524
M4523
M4522
M4540
M4520
M4093
M4073
Pocket No. [N]
Tool No. Ø
Pocket No. -1
Tool No. [M]
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