Hi everyone,

I have a Powerflex 525 VFD that I am wanting to send a analog speed command to and get an analog speed indication back from. I am using a 6ES7134-6GF00-0AA1 for the AI card and a 6ES7135-6HD00-0BA1 for my AO card. They are wired to the VFD in the format shown in the attached image (the +24VDC on the AI card is the UV terminal).

The issue I am having is I keep getting a raw value of -22 on the analog input that doesn't change even though I confirmed the VFD speed is changing and outputting a value if the wire is off.  My analog cards are configured for 4-20mA signals (2-wire transducer for AI cards). I confirmed with Rockwell the wiring is correct on the VFD side of things.

Anyone have any suggestions on how to get this to work?

Closed cause question posted twice.

The second thread with the subject wiring analog control and feedback to a powerflex 525 is published within the conference Decentral Peripherie.