F07080

Drive: Incorrect control parameter

Siemens · SINAMICS G120C Variable Speed Drive

What does F07080 mean?

The closed-loop control parameters have been incorrectly configured, for example, setting p0356 (L_spread) to 0. This fault prevents the drive's control algorithms from functioning correctly, potentially leading to erratic behavior or inability to operate. The fault value (r0949) indicates the specific parameter number that is incorrectly set.

Common Causes

  • Critical control parameter (e.g., P0356 'L_spread' or P1082 'Maximum speed') set to an invalid or zero value.
  • Inaccurate or incomplete motor data (P0304-P0311) entered into the drive, leading to incorrect control model calculations.
  • Attempting to operate the drive with a control mode (P1300) that requires specific parameters not yet configured or valid.
  • Controller gain parameters (e.g., P291, P292 for speed control) set to extreme values causing instability or inability to control.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the value of P0356 (L_spread) is set to an appropriate non-zero value, typically derived from motor data or autotuning.

  2. 2

    Perform a motor identification run (P1900=1 or P1900=2) to automatically determine and set motor control parameters.

  3. 3

    Confirm all motor-related parameters (P0304-P0311) accurately match the connected motor's nameplate data.

  4. 4

    Reset drive parameters to factory defaults (P0010=30, P0970=1) and then reconfigure essential operational parameters.

  5. 5

    Adjust P1082 (Maximum speed) to a value consistent with the application's required speed range and motor limits.

Browse all codes in this manual (34)
Verified technical data. Last updated: March 2026

Related Faults

Source: Siemens SINAMICS G120C Variable Speed Drive
Siemens F07080 — Diagnostic Steps & Reset Guide | ErrorLib