Cause : Run Command/Frequency Reference Source Selection Error comes when frequency reference is assigned to an option card (b1-01 = 3) and an input option card is not connected to the drive. The Run command is assigned to an option card (b1-02 = 3) and an input option card is not connected to the drive.

1. Reconnect the input option card to the drive.
2. Frequency reference is assigned to the pulse train input.
3. The following values have been set while an AI-A3 option card is installed:
   • The source of frequency reference setting is assigned to an option card (b1-01 = 3).
   Properly set parameters.