Old Hand Fault Finder

ABB ACS580 7121: Motor stall

What it means The motor is operating in the stall region.

✓ Checked against the manual (Oct 2026): meaning and actions match the official fault table. Manual page.

Likely causes

  • Excessive load
  • Motor power too small for the job

Checks, in order

  1. Check motor load and drive ratings
  2. Check stall function settings (31.24)

Source

Source (reworded, not copied): ABB, ACS580 Standard Control Program Firmware Manual, 3AXD50000016097 Rev J (2025-10-01), Fault tracing, PDF page 560. Official manual (PDF). Fault numbers and names can differ between firmware versions.