I have DC 28V Servo Motor i wanna control it by Arduino
the Servo motor have 7 wires
3 for Potentiometer
1 GND
3 +28V for 3 motors
inside of the Servo motor is:
1 DC motor for rotation left
1 DC motor for rotation right
1 DC motor for clutches and brakes (it should work whenever the servo rotate)
there's 2 limit switch to stop the rotation motors automatic.
This is the diagram for circuit board inside of the motor:
Voltage:
Rotation Motors 28+-4Vdc
clutches and brakes 28+-4Vdc
Potentiometer 30V Max
Current:
Rotation Motors Max 5A
Brake Motor Max 0.8A
Potentiometer: 900-1200 Ohm
I would like to drive this motor by Arduino with just 3 wires (GND, +5V, PWM)
like i'm driving normal servo motor 3 wires 5V
waiting for your ideas to help me, Thanks 