I'm using node-red-contrib-modbus to set speed and turn on/off a VFD drive over ethernet. I have a manual for the drive, but when I try to write a value to the address, it says "Error: Modbus exception 2: Illegal data address (register not supported by device)"
I figured it out
Hey @Buzzylogic I am pleased you've got your issue solved.
As for why you got no responses, it's probably related to not specifying exactly which vfd or potential helpers with your type of vfd have not encountered the same issue or they did not spot this thread. Sorry about that.
What would be great is if you could explain how you resolved the situation for any future readers. I would probably also include the make and model of your vfd so that it can be searched and found.
I gave the solution, but for some reason it didn't post. The VFC is an Ironhorse ACG-40P5 from automation direct. I found that I can't used the full address 40898 for on/off and 40896 for frequency, but have get rid of the 4, so 898 and 896. It works now.
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.
Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
The OpenJS Foundation | Terms of Use | Privacy Policy | OpenJS Foundation Bylaws | Trademark Policy | Trademark List | Cookie Policy
