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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.

CPF19

Control Circuit Fault

Yaskawa · P1000

What does CPF19 mean?

A general fault has been detected within the drive's control circuitry. This indicates an internal malfunction of the control logic, affecting overall drive operation. (Similar to CPF14).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify input voltage (L1, L2, L3) and frequency at the drive's input terminals against nominal specifications and check for phase imbalance.

  2. 2

    Inspect all control wiring connections (e.g., digital I/O, analog I/O, communication cables) for loose terminals, damage, or improper shielding.

  3. 3

    Inspect drive cooling fans for proper operation and ensure heatsinks and ventilation openings are free from dust and obstructions.

  4. 4

    Review relevant drive parameters related to control modes, I/O configuration, and safety functions to ensure correct setup and integrity against a known good configuration.

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

Related Faults

AL14Serial Communications AlarmCEMEMOBUS/Modbus Communication ErrorCPF02A/D Conversion Error
Source: Yaskawa P1000
Open Manual (Page 383)Search more codes in this manual