24-05-2020, 08:08 PM
I was looking in the wrong place. The problem was mechanical, not electronic.
One of the gate had wound past top dead centre and was trying to operate with the crank on the wrong side (near the gatepost rather than away from the gate post).
This was because it had been installed with the fully open stop missing. The gate had been windining into the brick gate post as a stop. As this wore away, (perhaps combined with longer motor runs if the photo beam has been broken?) the gate mechanism got itsself into the wrong quadrant.
I have made a new fully open stop, so hope all will be OK.
William.
One of the gate had wound past top dead centre and was trying to operate with the crank on the wrong side (near the gatepost rather than away from the gate post).
This was because it had been installed with the fully open stop missing. The gate had been windining into the brick gate post as a stop. As this wore away, (perhaps combined with longer motor runs if the photo beam has been broken?) the gate mechanism got itsself into the wrong quadrant.
I have made a new fully open stop, so hope all will be OK.
William.