Is a Separate Encoder Axis Needed after Setting Up VFD Axis with Encoder Feedback?

[jake4eng 0]

Do I need an encoder (slave) axis for my project?

I am using a Powerflex755 and Incremental Rotary Encoder (scaled into linear movement axis)...

Any other suggestions would be GREATLY APPRECIATED!!

project file https://sites.google.com/site/lyncedrgb/eva/untitledpost-2/StellaPLC.ACD

[JRoss 84]

The program won't help us answer your question, we need to know the application. Why do you think you might need a second encoder?