July 2013 8.1 Display and operation 1243
MP7420 Cycles for milling pockets with combined contours
Format: %xxxxx
Input: Bit 0 – Milling direction for channel milling
0: Counterclockwise for pockets, clockwise for islands
1: Clockwise for pockets, counterclockwise for islands
Bit 1 – Sequence for rough-out and channel milling (only for
SL 1):
0: First channel milling, then pocket rough-out
1: First pocket rough-out, then channel milling
Bit 2 – Merging of listed contours
0: Contours are merged only if the tool-center paths intersect
1: Contours are merged if the programmed contours intersect
Bit 3 – Rough-out and channel milling to pocket depth or for
every infeed
0: Each process uninterrupted to pocket depth
1: Both processes for each pecking depth before proceeding to
the next depth
Bit 4 – Position after completion of the cycle
0: Tool moves to the same position as before the cycle was
called
1: TNC retracts the axis to the "clearance height"
Scaling factor Cycle 11:
In MP4710, enter the effective range of the scaling factor.
MP7410 Scaling cycle in two or three axes
Input: 0: Scaling cycle is effective in all three principal axes
1: Scaling cycle is effective only in the working plane
Cylindrical surface With Cycles 27, 28 and 39 you can machine a contour on a cylindrical surface
(see the User’s Manual).
In standard approach/departure movements of Cycle 39, the tool approaches/
departs the contour tangentially on an arc that depends on the tool radius. If
contours are close to each other, the approach/departure movements might
damage adjacent contours.
Define the rotation center of the rotary axis with MP75xx. Also see page
701.
Define the behavior of Cycle 28 with MP7680 bit 12.
Define the behavior of Cycle 39 with MP7680 bit 16.
MP7680 Machine parameter with multiple function
Input: Bit 12 – Behavior of Cycle 28
0: Standard behavior
1: The slot wall is approached and departed tangentially; at the
beginning and end of the slot a rounding arc with a diameter
equal to the slot is cut
Bit 16 – Behavior of Cycle 39
0: Standard behavior
1: Approach/departure movement on an arc is not active
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