CPF11

RAM Fault

Yaskawa · J1000 AC Drive

What does CPF11 mean?

Hardware damage has occurred within the drive's RAM (Random Access Memory), which is essential for temporary data storage and processing during operation. This indicates a serious internal hardware failure that will prevent the drive from functioning correctly, leading to immediate operational failure and potentially unsafe conditions.

Complete Troubleshooting Guide

  1. 1

    This fault indicates a critical internal hardware failure. The entire drive unit must be replaced.

Source: Yaskawa Manual