I am trying to integrate a forward and reverse limit switch with a linear actuator. I need the actuator to find the forward limit, offset from the switch enough the disengage the switch, stop there while another task is occuring, then retract to the reverse limit, and finally offset from the reverse switch enough to disengage the switch.
I'm able to get this procedure to work one time through when the driver is just turned on, but after it's gone through the procedure more than once, the actuators no longer offset. I'm defining the offset amount in Measurement and Automation Explorer. It appears that the "find reference" VI longer finds the forward and reverse limits after the first time because if I probe the output of the "check reference" VI, the value is false even when the actuator has stopped on the limit switch.
Is there something I need to clear after each cycle? Any suggestions would be great.
