DC power circuit

Matt Lanni's picture

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Joined: Feb 23, 2021

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DC power circuit
February 23, 2021 - 2:28am

Please can someone help!!   I have to use 2 speed controllers into one dc electric motor. 48 volts, 1000w, running up to 40 amps. I have to use a diode on each motor cable out of the controllers. What type do I use and how do I wire it up. Sorry, I'm a total numpty. 

Sourav Gupta's picture

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Joined: Feb 12, 2018

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How the motor speed is controlled now without two speed controller? what type of control signal it supports?

Matt Lanni's picture

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Joined: Feb 23, 2021

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One controller uses a twist throttle, the other a potentiometer. Have used 2 diodes in parallel just on the neg output of each controller (any other configuration doesn't seem to work) but they smoke badly when under load. They're 10 amp 50v each. 

Sourav Gupta's picture

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Joined: Feb 12, 2018

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40amp is a very high current. There must be some low voltage low current control signal. How there speed is controlled. How many wires are connected with the motors? If it is connected with some controller does it take control signals?