# ID 21758

Maximum difference between radii exceeded.
Description | When circles G02, G03 are programmed with inactive circle centre point compensation (G164), it may occur that the calculated radii of the circle starting point and the circle end point are different. The resulting radius difference between the circle start point and the circle end point should not exceed a limit value.

The limit value for the radius difference can be set with the parameters P-CHAN-00171 and P-CHAN-00172.

Response | Class | 2 | Program abort.
Solution | Class | 3 | Check and correct programmed circle end point in CNC program.
Parameter | %1: | Error value [0.1 µm or 0.0001°]
Current radius difference between circle start point and circle end point.
%2: | Upper limit value [0.1 µm or 0.0001°]
Permissible radius difference
%3: | Current value [0.1 µm or 0.0001°]
Circle start point radius
%4: | Current value [0.1 µm or 0.0001°]
Circle end point radius
Error type | 1, Error message from NC program.