
B–63523EN–1/03
2. PREPARATIONS FOR OPERATION
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Parameter No. 14946 = Distance of maximum point of rectangle 2 in 2nd
axis
Parameter No. 14947 = Distance of minimum point of rectangle 2 in 2nd
axis
In the same manner as rectangle data measurement, measure the center
point of interference check area B that is rotated on the A–axis.
Z
Y
Distance of rotation center point in 1st axis
Distance of rotation center
point in 2nd axis
Rotation center
Parameter No. 14956 = Rotation center in the first axis when area B is
rotated
Parameter No. 14957 = Rotation center in the second axis when area B is
rotated
This function makes interference checks based on the position
information obtained after pulse distribution, so there is an overrun
distance when the machine is stopped by an alarm. Furthermore, because
of the CNC processing capability, this function cannot check all
interference patterns in each distribution period. As a result, while the
function checks all interference patterns, there is an idle run distance
(overrun distance).
The overrun distance is obtained as follows:
Suppose bits 4 to 7 (IC1 to IC4) of parameter No. 14900 be 0. (Setting:
16)
Interference check processing time =
((3 4) + (3 4) + (4 4)) B (setting in IC1 to IC4) 8
= (12 + 12 + 16) B 16 8 = 20
Round the result upward to a multiple of 8 24 [msec]
Interference check overrun distance =
rapid traverse rate B 60 interference check processing time
= 30000 B 60 24 = 12000 [0.001 mm]
This function performs processing within a CNC distribution period. As
the value set in IC1 to IC4 becomes larger, processing within the CNC
distribution period increases. This can affect program command
preprocessing and screen display processing, resulting in delay in such
processing.
As a guideline, set IC1 to IC4 to 16, and make adjustments as necessary.
D Rotation center of
interference check area
B
D Calculating the overrun
distance