Mitsubishi QD75P1N User Manual page 145

5 DATA USED FOR POSITIONING CONTROL
[Table 1]
Pr.1
setting value
0 : mm
1 : inch
2 : degree
3 : pulse
Pr.41 Allowable circular interpolation error width
With the "allowable circular interpolation error width", the allowable error range of
the calculated arc path and end point address is set.
If the error of the calculated arc path and end point address is within the set range,
circular interpolation will be carried out to the set end point address while
compensating the error with spiral interpolation.
The allowable circular interpolation error width is set in the following axis buffer
memory addresses.
• If axis 1 is the reference axis, set in the axis 1 buffer memory address
[60, 61].
• If axis 2 is the reference axis, set in the axis 2 buffer memory address
[210, 211].
• If axis 3 is the reference axis, set in the axis 3 buffer memory address
[360, 361].
•
If axis 4 is the reference axis, set in the axis 4 buffer memory address
[510, 511].
Path with spiral interpolation
Start point address
With circular interpolation control using the center point designation, the arc
1:
path calculated with the start point address and center point address and the
end point address may deviate.
Value set with peripheral device
(unit)
0 to 10000.0 ( μ m)
0 to 1.00000 (inch)
0 to 1.00000 (degree)
0 to 100000 (pulse)
Error
Center point address
5 - 41
MELSEC-Q
Value set with sequence program
(unit)
0 to 100000 ( × 10 -1
μ m)
0 to 100000 ( × 10 -5
inch)
0 to 100000 ( × 10 -5
degree)
0 to 100000 (pulse)
1
End point address
with calculation
End point address