Yaskawa Error Code H66 Link Official

Ensure that you are using Yaskawa-recommended shielded cables for control signals to prevent noise. :

: Electromagnetic interference (EMI) can sometimes cause "ghost" signals on the control circuit, tricking the drive into seeing a second command. Troubleshooting and Solutions To resolve the H66 error, follow these structured steps: Check Input Status : yaskawa error code h66

: A short circuit in the control wiring can bridge two input terminals, causing a phantom second run command. Once the root cause (conflicting signals) is removed,

Once the root cause (conflicting signals) is removed, you can clear the error by pressing on the keypad or by cycling the power. causing a phantom second run command.

Add a small "dwell" time or interlock delay when switching directions to ensure one command is completely OFF before the other turns ON. :

Verify if both Forward and Reverse commands are lit up at the same time. :