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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.

CPF07

Terminal Board Connection Error

Yaskawa · Drive Fault Codes

What does CPF07 mean?

An error related to the connection of the drive's terminal board, which provides external input/output connections (e.g., digital inputs, analog outputs). This can lead to loss of external control signals or incorrect feedback, causing operational issues.

Common Causes

  • Loose or improper connection of the terminal board to the main control board
  • Damage to the terminal board connectors or the ribbon cable connecting it to the main board
  • Physical damage to the terminal board itself, affecting its electronic components.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power down the drive and inspect the terminal board's connections to the main board for secure seating.

  2. 2

    Check the ribbon cable or interconnecting wiring for damage (e.g., cuts, pinched wires) or proper seating.

  3. 3

    Verify that no foreign objects are shorting contacts on the terminal board or its connector.

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

Related Faults

CEMEMOBUS/Modbus Communication ErrorCPF02A/D Conversion ErrorCPF03Control Board Connection Error
Source: Yaskawa Drive Fault Codes
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