1This PWM DC motor speed controller (model DM103AH) is mainly used to drive a brushed DC motor, designed for motion control cards or PLC controlling DC motor 2It has function of speed governing, on/off, CW/CCW rotation, locked-rotor alarm output, over-current protection, short circuit protection and status indication 3The speed controller can control motor with sorts of motion control cards, PLC, and also it can control motor independently 4It can be set to control different models brushed DC motors of voltage 20V-110v, and power less than 2000W 5With complete function connector, it can connect to external 0 to 5v, 0-10v, 4-20mA, PWM signal and external potentiometer manually, a total of 5 kinds of speed governing control ways Features:This PWM DC motor speed controller (model DM103AH) is mainly used to drive a brushed DC motor, designed for motion control cards or PLC controlling DC motor.It has function of speed governing, on/off, CW/CCW rotation, locked-rotor alarm output, over-current protection, short circuit protection and status indication. The speed controller can control motor with sorts of motion control cards, PLC, and also it can control motor independently.It can be set to control different models brushed DC motors of voltage 20V-110v, and power less than 2000W. It can be used individually through external switch and knob; can also be used with PLC, motion control card, industrial personal computer. With complete function connector, it can connect to external 0 to 5v, 0-10v, 4-20mA, PWM signal and external potentiometer manually, a total of 5 kinds of speed governing control ways. Designed with ON/OFF connector, CW/CCW rotation connector and protection output connector. Support AC or DC input, there is no worry about burn-out by reverse input.Wide power supply range from AC15V to 110V (50/60Hz), DC 20V to 150V. It has power indicator light, green light for power indicator, red light is alarm indicator. This driver can also be used to drive boiler heat wire, vibration plate, electromagnetic machine, suitable for non-capacitive loads within 2kW.Instruction: 1, High Voltage Connector: M-:motor- M+: Motor+(Limit load is 2kW, nominal load is 1.5kW, if need change rotate direction, exchange two wires) NC: empty ACIN: Power input (no need to distinguish "+" or "-") Power Input:AC15V-110V(50/60Hz), DC20V-150V 2, Analog Input: 5V:Power supply 5V output pin. AIN / VR:Analog input.This connector can connect to three kinds of signal for speed governing. When using 0-5V/0-10V voltage speed governing or 4-20mA current signal to speed governing, need to set 4-digit DIP switch. 1)Potentiometer Speed Governing:5V, AIN/VR, GND connect respectively to three pins of a 10kR potentiometer to manually control speed; At the same time, the 4-digit DIP switch is set as "0~5V - PWM"(SW1 - ON, SW2 - OFF, SW3-OFF, SW4-ON) SW3-OFF; SW4-ON 2) :Input 0-5V or 0-10V voltage signal for speed governing.AIN/VR connects to voltage signal, GND connects to ground. At the same time 4-digit DIP switch is set as "0~5V - PWM"(SW1 - ON, SW2 - OFF, SW3-OFF, SW4-ON SW3-OFF; SW4-ON; No resistor is needed for 0-5V voltage signal input, directly con