If you are getting a Y Axis "Marker Not Found Error" on your Autobend AB7, try the following items to see if this clears the error:
Clean the linear scale glass with q-tips and alcohol
Check the condition of the linear scale harness between the scale and J10 on the motion module
Locate the marker pulse and marker pulse high with an o-scope on J10-5 and J10-6.
If you continue to have problems, contact Hurco Technical Support for addtional information.