Cause : Option fault comes when torque command by the plug-in option is selected using Pr.804 Torque command source
selection and no plug-in option is mounted.

1. This function is available under torque control. Appears when the switch for manufacturer setting of the plug-in option is changed.
2. Appears when a communication option is connected while Pr.296 Password lock level = "0 or 100".
3. Check that the plug-in option for torque command setting is connected.
4. Check for the password lock with a setting of Pr.296 = "0, 100".
5. Check for connection of the plug-in option. Check the Pr.804 setting.