EL
ErrorLib
Brands
||
  1. Home
  2. Indramat
  3. Indradrive
  4. F8016
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

F8016

Automatic commutation: iteration without result

Indramat · Indradrive

What does F8016 mean?

The automatic commutation routine repeatedly failed to converge on a valid commutation offset, indicating that the iteration process did not yield a stable or conclusive result. This suggests inconsistent feedback or an inability to consistently influence motor position.

Common Causes

  • Erratic or noisy encoder signals.
  • Loose mechanical coupling between motor and encoder.
  • Varying mechanical load or friction during the commutation process.
  • Drive hardware issues affecting current control or measurement during commutation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect encoder cabling for proper shielding and grounding to prevent noise interference.

  2. 2

    Verify the mechanical integrity of the encoder mounting and coupling to the motor shaft.

  3. 3

    Ensure the motor is disconnected from any external load or that the load is consistent and minimal during commutation.

  4. 4

    Check the drive's diagnostic parameters for encoder signal quality or motor current feedback consistency.

  5. 5

    If all external factors are ruled out, the drive's control section or measurement circuitry might be at fault.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

E-0000Processor exception errorF4001Double MST failure shutdownF4002Double MDT failure shutdown
Source: Indramat Indradrive
Open Manual (Page 7)Search more codes in this manual