This is on an edger. It runs fine in forward. In reverse, it runs normal for a couple seconds, then sudddenly stops, then starts again if it hasn't passed its destination. It happens in both auto and jog mode.
The assembly is positioned with two cylinders, one on either side. They are each set up as an axis in a 1771-QB module. All behavior seems to be identical in both axes.
The commanded velocity holds steady during the unwanted stops.
The output voltages out of the QB module seem to dip unexpectedly at the same time as the unwanted stops, but holds mostly steady otherwise.
We put in a new QB module and it did not help.
Any help or troubleshooting ideas would be greatly appreciated!
The assembly is positioned with two cylinders, one on either side. They are each set up as an axis in a 1771-QB module. All behavior seems to be identical in both axes.
The commanded velocity holds steady during the unwanted stops.
The output voltages out of the QB module seem to dip unexpectedly at the same time as the unwanted stops, but holds mostly steady otherwise.
We put in a new QB module and it did not help.
Any help or troubleshooting ideas would be greatly appreciated!