dz1000 weird operation

You may have an LED going bad.  I recall some ancient thread here alluding to a bad batch of LEDs that caused flaky results.  Try pulling the LEDs out of motor and see if problem ceases.  Ditto for the Z1000 control box if used.

 

Or possibly the microswitch inside motor may be loose or going bad.  Not much inside them to work on.

Note that there is a small switch in the circuit that cuts power when the throw is complete. The switch motor may not be traveling far enough to open the switch.


The switch is green.  Bottom cover removed on the DZ 1000
Right throw.


Left throw.


If you are using non-derail circuitry, you need to clean the isolation gap between the trigger rail section and the rest of the outside rail. That also will continue to trip the throw.

I found the solution, but I am curious about the micro switch response.  If the switch were not throwing far enough to open the switch, would the switch not continue trying to close in the same direction rather than reversing?  What I found that solved the problem was an open ground circuit in the track leading up to the switch.  Don't know exactly why that caused the switch to reverse, but with the ground attached , no problem; open the ground circuit, switch reverses.  Will have to study more closely to figure exactly how this is happening.