207080

Drive: Incorrect control parameter

Siemens · SINUMERIK 828D

What does 207080 mean?

The closed-loop control parameters of the drive have been incorrectly parameterized, for example, parameter p0356 (L_spread) is set to 0. The fault value (r0949) includes the specific parameter number that is involved. This fault does not cause an immediate reaction but requires a POWER ON acknowledgement after correction.

Common Causes

  • Manual entry error during parameterization, setting a critical control parameter (e.g., P0356, P0358, P0360) to an invalid or out-of-range value.
  • Incomplete or incorrect motor data identification (e.g., P0300 to P0307) preventing proper calculation of control loop gains.
  • Loading an incompatible parameter set from a different drive type or older firmware version, corrupting control-specific values.
  • Drive software or firmware bug causing default parameter values to be incorrect or not applied during initialization.
  • Using default values for specialized applications requiring specific tuning (e.g., high inertia loads, direct drive systems), leading to unstable control.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Identify the specific parameter indicated by r0949 and verify its current setting against the recommended value in the drive manual or commissioning guide.

  2. 2

    2. Perform a factory reset (e.g., P0010 = 30, P0970 = 1) and re-enter essential motor and application data, then re-commission the drive.

  3. 3

    3. Load a known good parameter set for this specific machine and drive configuration from a backup file (e.g., using STARTER or Startdrive software).

  4. 4

    4. Re-run the motor identification and optimization routine (e.g., P1910 = 1 for automatic tuning) to recalculate control loop parameters.

  5. 5

    5. Check for and install any available firmware updates for the drive unit, then re-commission the drive if necessary.

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Verified technical data. Last updated: March 2026

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