12 volts might not be enough to energize the Curtis logic circuits properly.
An incandescent light bulb (40-150 Watt) is your friend. First, connect it across the controller input terminals. If it lights at all, it should be just for a short time. (You are making sure the capacitors inside the controller are discharged.) Connect the bulb across the fuse holder and pull in the contactor. It should go bright for some seconds and then fade to black as the controller's capacitors charge. If it stays bright, the controller is most likely shorted (either through to the motor, or across its input). If that test passes, put the fuse in place. Apply normal input voltage but connect the bulb in place of the motor. It should brighten and dim with the throttle potentiometer position. If not, you have a problem in the controller. Others with real EE background may have further suggestions for you. Good luck! David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
