# ID 70030

Error within machine reference search for SERCOS drive.
Description | During homing (see [FCT-M1]), an error occurred with a SERCOS drive. Possible cause: Some SERCOS drives require a minimum distance between the reference switch and the reference mark in order to finish a drive controlled reference point traverse successfully. Otherwise the reference mark cannot be detected precisely.

Solution:

- Consult the documentation of the drive manufacturer for a further error diagnosis.
- Check the ID number S-0-0298 whether the reference cam must be moved and by what distance.

Response | Class | 5 | Abrupt axis stop
Solution | Class | 6 | Consult drive manufacturer's documentation
Parameter | %1: | Logical axis number [-]
Logical axis number of affected axis see P-AXIS-00016
%2: | Drive type [-]
Drive type of concerned axis, see P-AXIS-00020
%3: | Current value [-]
SERCOS drive status
%4: | Block number [-]
Block number of the NC program, in which the error occurred.
Error type | 11, Error message from position controller.