F109-66
Plausibility fault SSI encoder connection (slave mode)
SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive
What does F109-66 mean?
The connected encoder type does not correspond to the configuration for an SSI encoder operating in slave mode. This indicates a mismatch in setup.
Common Causes
- SSI encoder communication fault when configured as slave.
- Master device not sending valid SSI commands.
- Data transfer error over the SSI interface in slave mode.
- Faulty SSI interface on the slave encoder.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check configuration.
- 2
Check connected encoder.
Verified technical data. Last updated: March 2026
Related Faults
Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive