Hey Guys,

Went to do a setup with an HRT210 4th on our older (94ish?) VF2. Connected the 4th and powered up the machine. Got an Alarm 142 when trying to home the A-axis. I can move the 4th exactly 1.000 degrees before it alarms out.

This setup worked the last time it was used.

My first thought was bad connections or a bad cable. Tested continuity through the cable and the connection on the back of the machine. All good. I'm suspect of the 4th unit itself at this point. Bad encoder?

Brought in an identical 4th from another machine and tried it out. It doesn't work. Tested the same 4th on our '95 VF0 and it works fine. I figure ok, it must be the servo board. Swapped the board from the VF0 to the VF2. The same board and 4th that worked with the VF0 do not work in the VF2.

Not sure what else to look at.

Any suggestions are appreciated.

Thanks,
Mike