stinklizard
Member
I sifted through a few old threads on this subject, but most seemed to be troubleshooting specifics. I am sure I could google several sources for information; but does anyone have any recommendations for a start? I don't have a job need or school related task here, nor do I have a specific VFD. I am just very curious and wondered about it before I knew it specifically existed. I do have a 1756-L1, 1756-L55, as well as a ControlNet adapter (1756-CNB/D). Other modules don't seem to be prudent to this, so I've omitted them.
I know some VFDs can take analog input to control speed, and some have specific binary inputs for speed and direction. It would seem an RS232 or ControlNet interface and protocol set should exist.
I know some VFDs can take analog input to control speed, and some have specific binary inputs for speed and direction. It would seem an RS232 or ControlNet interface and protocol set should exist.