This machine has been running fine since it's install 2 years ago.
The output is commanding an allen bradley powerflex 525, forward is output 7 and reverse is output 8.
I've discovered that someone has wired an AB 854K-B24SA3 stack alarm to this same output, probably about a year ago.
I'm thinking this is drawing to much, and has caused the contacts to fuse together. Should have been wired to the control relay...