Flyback diode on 4 pole motors

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1

Hi, I am building an RC Lawn mower. Using a 2x60 sabertooth motorcontroller. I have a pair of 4 poled motors from a quantum 6000z power wheel chair (max amp 80).

  1. I just saw that there is a special wiring with diodes that is suggested for four poled motors. Before I knew this I did a bunch of test runs with lower load than I will be using for the lawn mowing application on steep hills. It worked fine.
    My question is whether the extra diodes are necessary? If so, I am not really much of an electrician and don’t understand how to do the wiring based on the diagram provided by Dimension engineering who produce the controller. Any Help much appreciated!!
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2

Hi @Randalia and welcome to our forum!

A flyback diode is a diode connected across an inductor used to eliminate flyback, which is the sudden voltage spike seen across an inductive load when its supply current is suddenly reduced or interrupted. It is used in circuits in which inductive loads are controlled by switches, and in switching power supplies and inverters.

Can you share with us that diagram from Dimension Enginnering?