F34
Ramp timeout
SEW Eurodrive · MOVITRAC 07B System
What does F34 mean?
The drive has failed to reach the start/stop speed within the specified ramp time. This fault can occur during a controlled stop if the stop ramp time t13 is exceeded, or if the set stop ramp (P136 / P146) is too short. It causes an immediate switch-off with inhibit.
Common Causes
- Ramp time (start or stop) set too short for the load inertia or application dynamics
- Drive exceeded stop ramp time t13 after inhibit removal
- Parameter P136 or P146 (stop ramp time) configured to an insufficient duration
Repair Steps & Checklist
Click steps to track your progress.
- 1
Extend the start or stop ramp time (e.g., P136 / P146 for stop ramp).
- 2
Review the application's acceleration and deceleration requirements and adjust ramp times accordingly.
Verified technical data. Last updated: March 2026
Related Faults
Source: SEW Eurodrive MOVITRAC 07B System