CPU Error
SEW Eurodrive · MOVIFIT SC
What does 21 mean?
This fault indicates a general error within the unit's Central Processing Unit, signaling an internal malfunction of the control electronics. While it can sometimes be a transient issue, it may also point to a deeper hardware defect within the unit's core processing components. Repeated occurrences of this error can lead to unpredictable unit behavior, loss of control, or complete operational failure, potentially causing process interruptions.
Complete Troubleshooting Guide
- 1
Attempt to reset the error by power cycling the MOVIFIT unit (turn off, wait at least 30 seconds, then turn on).
- 2
Ensure the unit's operating environment is within specified temperature and humidity limits to prevent internal thermal stress on electronic components.
- 3
Check the unit's diagnostic logs (if accessible via MOVITOOLS MotionStudio) for further details or context surrounding the CPU error.
- 4
If the error recurs persistently despite basic troubleshooting, contact SEW-EURODRIVE service for unit inspection or replacement, providing all collected diagnostic data.