DC power circuit

Submitted by Matt Lanni on Tue, 02/23/2021 - 02:28

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. 

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

  Joined February 12, 2018      696
Monday at 02:11 PM

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. 

  Joined February 23, 2021      1
Tuesday at 02:18 AM

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?

  Joined February 12, 2018      696
Monday at 02:11 PM