Hello
First I would check the limit switches. The switches are behind the front cover plate on the quill. There should be at least 3 (upper, lower overtravel and home). I had a problem similar to you, but I found a wire broken off of the connector to the servo motor(I think it was the encoder feedback wire). I have been told that older systems will not alarm out when they loose feedback just keep going until they hit a hard limit. |