cappyD
New member
Soundguy - Do you have the soft start/stop function enabled? You probably do since you programmed it to stop a 1/2 second after the motor is at full load. When it was stopping in the middle of it's cycle did it slow down first or did it stop quickly? If your gate has 2 arms did both arms stop together? I'm asking because I went through something similar with my MM 502 (blue board) recently. My slave arm was stopping for no reason in mid cycle but the master arm was working fine. It didn't do it every time which I thought was odd. I took the arm apart and did 2 things. One of which fixed my problem.
1. The rev counter (inside of the arm mounted on a small control board) on my MM 502 has to be able to "see" through a round black disk with square holes around it. I guess that's how it counts the revolutions and knows where to stop when programmed. Mine had a spider webs and debris partially blocking some holes. I cleaned the disk and the small control board with compressed air.
2. The rev counter control board on my slave arm was crooked. I wasn't sure if it made a difference or not but it just didn't seem right that the black disk wasn't rotating smoothly with the same distance all around between the disk and board. I loosened the board and lined everything up and tightened.
I still don't know which one of these 2 things fixed my problem. All I know is I had a short cycle problem off and on for weeks. I took the arm apart and did these 2 things. I haven't had a short cycle problem since. This happened in early October.
Good luck!
1. The rev counter (inside of the arm mounted on a small control board) on my MM 502 has to be able to "see" through a round black disk with square holes around it. I guess that's how it counts the revolutions and knows where to stop when programmed. Mine had a spider webs and debris partially blocking some holes. I cleaned the disk and the small control board with compressed air.
2. The rev counter control board on my slave arm was crooked. I wasn't sure if it made a difference or not but it just didn't seem right that the black disk wasn't rotating smoothly with the same distance all around between the disk and board. I loosened the board and lined everything up and tightened.
I still don't know which one of these 2 things fixed my problem. All I know is I had a short cycle problem off and on for weeks. I took the arm apart and did these 2 things. I haven't had a short cycle problem since. This happened in early October.
Good luck!
