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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.

CPF03

PWM Data Fault

Yaskawa · P1000

What does CPF03 mean?

An issue was detected with the Pulse Width Modulation (PWM) data generation, which is critical for controlling the motor's voltage and frequency. This indicates an internal control problem.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Cycle power to the Yaskawa P1000 AC Drive and observe if the CPF03 fault clears.

  2. 2

    Verify all motor control parameters (e.g., motor nominal voltage, current, frequency, carrier frequency, V/Hz pattern) are correctly configured according to the motor nameplate and application requirements.

  3. 3

    Inspect the drive's cooling fan operation and heat sink for obstructions or excessive dust accumulation, ensuring proper ventilation to prevent overheating.

  4. 4

    Check the drive's current firmware version and consult Yaskawa documentation for any known issues or recommended updates pertaining to CPF03.

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

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