
4.DESCRIPTION OF PARAMETERS B-64120EN/01
- 182 -
Pitch error compensation amount (absolute value)
Reference position
-400 -300 -200 -100
0
100 200 300 400 (mm)
-1
-2
-3
-4
+4
+3
+2
+1
[Example 2] For the rotation axis
• Amount of movement per rotation: 360°
• Interval between pitch error compensation position: 45°
• No. of the compensation position of the reference position: 60
If the above is specified, the No. of the farthest compensation position
in the negative direction for the rotation axis is always equal to the
compensation position No. of the reference position.
The No. of the farthest compensation position in the positive direction
is as follows:
No. of the compensation position of the reference position +
(Move amount per rotation/Interval between the compensation
position)
= 60 + 360/45
= 68
The correspondence between the machine coordinate and the
compensation position No. is as follows:
The compensation value is output at the circled position.
If the sum of the compensation value from 61 to 68 is not zero, the
pitch error per rotation accumulates, resulting in a positional shift.
For compensation position 60, set the same compensation value as for
68.