FF52
NO MOT DATA
ABB · ACS800 Standard Firmware
What does FF52 mean?
Motor data required by the drive is either missing or the configured motor data does not match the inverter's requirements. This fault is linked to bit 1 of Fault Word 2 (3.06 FW 2).
Common Causes
- No valid data received from the motor feedback device (encoder, resolver).
- Motor feedback cable disconnected or damaged.
- Faulty motor feedback sensor.
- Drive not receiving motor identification data.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Review and correctly enter all motor data parameters from the motor nameplate, specifically parameters 99.04 through 99.09.
Verified technical data. Last updated: March 2026
Related Faults
Source: ABB ACS800 Standard Firmware