F7458 fault in siemens sinamics V90 drive indicates the EPOS Reference cam was not found. This means the axis traveled its maximum allowed distance during a homing routine without ever triggering the home position switch (reference cam).
Cause:
After starting the search for reference, the axis moved through the maximum permissible distance to search for the reference cam without actually finding the reference cam.
Remedy:
- Check the “reference cam” input.
- Check the maximum permissible distance to the reference cam (p2606).
See also: p2606 (EPOS search for reference cam maximum distance)
