F06 :Option Unit/Card self-test error
• Install the DeviceNet Communications Unit/Card correctly.
• Align the case with the connector of the DeviceNet
Communications Unit/Card so that it is fully installed.
F23:Option Unit/Card mutual test error
A communications error occurred between the DeviceNet Communications Unit/Card and Inverter.
• Install the DeviceNet Communications Unit/Card correctly.
• Align the case with the connector of the DeviceNet Communications Unit/Card so that it is fully installed.
• Check whether the DeviceNet Communications Unit/Card’s FG wire is properly connected to the Inverter.
• Take steps to reduce noise in the DeviceNet communications lines. (See 3-3 Communications Line Noise Prevention for details.)
• Replace the DeviceNet Communications
