F7443 fault in siemens sinamics V90 drive indicates the Reference point coordinate is not in the permissible range. This means the supplied reference value for the absolute encoder adjustment is too large to be safely represented by the encoder’s maximum tracking range.
Cause:
The reference point coordinate received when adjusting the encoder via connector input p2599 lies outside the half of the encoder range and cannot be set as actual axis position.
Remedy:
Set the reference point coordinate to a lower value than specified in the fault value.
See also: p2599 (EPOS reference point coordinate value).
For a motor with an absolute encoder, the maximum permissible encoder range is calculated by the formula (4096 * p29247)/2.
