Cause:
The three points on the arc with a specified arc angle are collinear.
Troubleshooting:
Check whether the three position points in the specified-arc-angle statement are collinear.
Solution:
Confirm the error line number and whether the three arc points specified on that line are collinear. If they are, change the path points.
Case sharing:
Lin(cp0)
CircleAngle(cp1,cp2,real0)
If cp0, cp1, and cp2 lie on a straight line, error 1505 will be reported during execution.