Stall Prevention (Overcurrent)

What does Stall prevention (overcurrent) mean?

The overcurrent stall prevention function has been activated. This warning indicates that the motor is encountering excessive current, possibly due to overload, insufficient acceleration time, improper torque boost settings, or mechanical binding. While a warning, prolonged activation can lead to motor or inverter damage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Reduce the mechanical load weight on the motor or consider switching to General-purpose magnetic flux vector control if applicable.

2. 4

   Adjust the Pr. 13 Starting frequency setting and change the Pr. 14 Load pattern selection setting.

3. 5

   Set an appropriate stall prevention operation current in Pr. 22 Stall prevention operation level, or increase the level, or disable stall prevention using Pr. 156 Stall prevention operation selection (use with caution).