F108-156
Faulty RAM test
SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive
What does F108-156 mean?
A fault was detected during the internal RAM test of the DCS..B option. This indicates an issue with the memory component crucial for operation.
Common Causes
- RAM test failed during system initialization.
- Specific RAM cells are not responding correctly.
- Memory controller unable to access RAM sectors.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace DCS..B option.
Verified technical data. Last updated: March 2026
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Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive