F00056

BOP not fitted

Siemens · SINAMICS G120

What does F00056 mean?

An attempt was made to initiate a parameter cloning operation without a Basic Operator Panel (BOP) being physically connected to the drive. This prevents the cloning process from starting, as the BOP is required for this function, meaning parameters cannot be loaded or saved via this method.

Common Causes

  • The Basic Operator Panel (BOP) is physically disconnected from the drive's communication port.
  • Loose or improperly seated connection of the BOP to the drive interface.
  • Damage to the BOP connector on either the panel or the drive itself.
  • Attempting a cloning operation via a remote interface that requires a local BOP for verification.
  • Faulty BOP preventing its detection by the drive's control unit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the BOP is securely and fully inserted into the drive's designated operator panel port.

  2. 2

    Inspect the physical connector pins on both the BOP and the drive for damage, bending, or corrosion.

  3. 3

    If available, try another known-good BOP to rule out a faulty panel.

  4. 4

    Ensure the drive's control unit is properly seated and its communication interface is functional.

  5. 5

    Check drive parameters related to BOP detection or interface configuration (e.g., P0003, P0004) if applicable, though typically auto-detected.

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Verified technical data. Last updated: March 2026

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