DC Motor Speed Controller can achieve simple automatic functions.  It can adapt to a wide DC low voltage operating range and it's suitable for SCM, PLC and other upper control.  It owns powerful function, stable performance and beautiful appearance.    Specification: 1. Input supply voltage:DC 12V-30V;  2. The output power: 12V:200W(max);  24V:400W(max);  3. The maximum output current:30A (built in 30A fuse).    Operating Instruction: Remote controller: Use to remote control speed and direction of motor;  Battery size:23A 12V.  Remote Control Key Function:  1. Clockwise;   2. Anti-clockwise;   3. Stop;   4. Speed up;   5. No function;   6. Reduce speed;    Manual switch control: Connect two manual switches.  Turn on the power, motor remotes on the corresponding direction. When reach the limit switch, motor stops.  In manual working process, the remote controller is invalid.    Potentiometer: Control the speed of the motor.  Adjust the initial speed of the system. When the system starts, the position of the potentiometer determines the initial speed.  Press the remote controller to speed up and down the motor. When adjust the potentiometer over 15 degree angle, recovery potentiometer to control speed.    Indicator light: System starts normally, the two LED flash at the same time.  When the motor is in a state, the LED D3 flash once per second.  In operation, push Key 1 or Key 2 of remote control (control direction of motor), the LED D4 or D3 lights up.    Limit sensor control: Motor working, corresponding sensor or switch is closed, then motor stop.  1. Mechanical stroke switch wiring diagram.  2. 12-30V NPN sensor wiring diagram (normally open type sensor).    Package Included: 1 x Driver;  1 x Control