Buggies Gone Wild Golf Cart Forum - View Single Post

Sergio · 04-02-2015, 05:39 AM

The issue is that You have the wrong controller for an MCOR.

You have a "51-42L500NN0S" which is a 0-5kΩ throttle, but You should have a "51-42L500NNVS" which is a 3 wire 0-5v setup.

The resistance of the potentiometer is not too important on a 0-5v setup as it is on a pure resistance or rheostat mode.

If You cannot exchange the controller for the right type, You can make some modifications to the throttle signal to get it to work better.

I also assume You must have removed (or will need to) the micro switch #3 for half-speed reverse as it would not be compatible with your controller.

This should be the original wiring diagram for your cart:

http://www.buggiesgonewild.com/attac..._with_mcor.jpg

Can You verify which MCOR wires you have plugged to Controller #2 and #3 Terminals?

04-02-2015, 05:39 AM	#10
Sergio Gone Wild Join Date: Sep 2012 Location: Charlotte, NC Posts: 9,329	Re: Power issues The issue is that You have the wrong controller for an MCOR. You have a "51-42L500NN0S" which is a 0-5kΩ throttle, but You should have a "51-42L500NNVS" which is a 3 wire 0-5v setup. The resistance of the potentiometer is not too important on a 0-5v setup as it is on a pure resistance or rheostat mode. If You cannot exchange the controller for the right type, You can make some modifications to the throttle signal to get it to work better. I also assume You must have removed (or will need to) the micro switch #3 for half-speed reverse as it would not be compatible with your controller. This should be the original wiring diagram for your cart: http://www.buggiesgonewild.com/attac..._with_mcor.jpg Can You verify which MCOR wires you have plugged to Controller #2 and #3 Terminals?