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ErrorLib — Industrial Fault Code Library

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65305

Motor parameter identification fault

Lenze · i550 Protec Drive

What does 65305 mean?

An error occurred during the automatic identification process of the connected motor. This indicates a mismatch between the drive's expectation and the motor's actual electrical characteristics or a problem with motor wiring. This could lead to incorrect motor operation or damage.

Common Causes

  • Motor not correctly wired to the drive (U, V, W terminals), or a phase is open-circuited during the identification process.
  • Incorrect motor nameplate data (e.g., P300.00-P304.00) entered into the drive's parameters before starting identification.
  • Mechanical load connected to the motor shaft during identification, preventing accurate measurement of motor inductance and resistance.
  • Faulty motor windings or internal short circuits, causing anomalous electrical characteristics during the test.
  • Drive output stage fault or current measurement circuit error, leading to inaccurate readings during the identification routine.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify correct wiring of motor phases (U, V, W) to the drive output terminals. Ensure all connections are secure.

  2. 2

    Disconnect the mechanical load from the motor shaft before initiating the automatic motor identification process.

  3. 3

    Double-check and re-enter all motor nameplate data (P300.00 for rated power, P301.00 for rated voltage, P302.00 for rated current, P304.00 for rated speed).

  4. 4

    Measure motor winding resistance between phases (U-V, V-W, W-U) and compare to expected values. Check for open circuits or shorts.

  5. 5

    If the issue persists, attempt a manual motor parameter entry if possible, or contact technical support for drive diagnostics.

Browse all codes in this manual (52)
Verified technical data. Last updated: April 2026

Related Faults

0x2250CiA: Continuous over current (internal)0x2320Short circuit or earth leakage at the motor end0x2340Short circuit at the motor end
Source: Lenze i550 Protec Drive
Open Manual (Page 631)Search more codes in this manual