18
Stack underflow
SEW Eurodrive · MOVIMOT Field Distributor
What does 18 mean?
A CPU-related fault indicating a critical internal software issue, likely related to improper memory stack management. This condition causes communication to the MOVIMOT to stop (DO=0).
Common Causes
- Faulty inverter electronics components.
- Errors during the execution of the system software.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Reset the fault by switching off the 24VDC supply voltage or using MOVILINK.
Verified technical data. Last updated: March 2026
Related Faults
Source: SEW Eurodrive MOVIMOT Field Distributor