Features: <br>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. <br> <br>It has function of speed governing, on/off, CW/CCW rotation, locked-rotor alarm output, over-current protection, short circuit protection and status indication. <br>The speed controller can control motor with sorts of motion control cards, PLC, and also it can control motor independently. <br> <br>It can be set to control different models brushed DC motors of voltage 20V-110v, and power less than 2000W. <br>It can be used individually through external switch and knob; can also be used with PLC, motion control card, industrial personal computer. <br>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. <br>Designed with ON/OFF connector, CW/CCW rotation connector and protection output connector. <br>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. <br>It has power indicator light, green light for power indicator, red light is alarm indicator. <br>This driver can also be used to drive boiler heat wire, vibration plate, electromagnetic machine, suitable for non-capacitive loads within 2kW. <br> <br> <br>Instruction: <br>1, High Voltage Connector: <br>M-:motor- <br>M+: Motor+(Limit load is 2kW, nominal load is 1.5kW, if need change rotate direction, exchange two wires) <br>NC: empty <br>ACIN: Power input (no need to distinguish "+" or "-") <br>Power Input:AC15V-110V(50/60Hz), DC20V-150V <br> <br>2, Analog Input: <br>5V:Power supply 5V output pin. <br>AIN / VR:Analog input.This connector can connect to three kinds of signal for speed governing. <br>When using 0-5V/0-10V voltage speed governing or 4-20mA current signal to speed governing, need to set 4-digit DIP switch. <br> <br>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 <br>2) :Input 0-5V or 0-10V voltage signal for speed governing.AIN/VR connects to voltage signal, GND connects to ground. <br>At the same time 4-digit DIP switch is set as "0~5V - PWM"(SW1 - ON, SW2 - OFF, SW3-OFF, SW4-ON <br> SW3-OFF; SW4-ON; <br>No resistor is needed for 0-5V voltage signal input, directly connect to AIN/VR &GND <br>Two resistors should be added for 0-10V voltage signal input as wiring in the diagram below: <br> <br>3)Input 4-20mA signal for speed governing.AIN/VR connects to current signal, GND connects to ground.At the same time, 4-digit DIP switch is set as "4-20MA - PWM" (SW1-OFF, SW2-ON, SW3-OFF, SW4-ON) SW3-OFF; SW4-ON <br>GND: common ground (hot ground, do not touch when power on) <br>ON/OFF: Motor ON/OFFit can connect to an external switch.When not connected to GND, motor is on; when connected to GND, motor is off.The external ON/OFF switch connect respectively to ON/OFF and GND. <br>5V:Power supply 5V output pin. <br>CW/CCW: motor CW/CCW control connector.Recommended minimum control interval is ≥1.5 seconds to protect motor brush.External CW/CCW switch connect respectively to CW/CCW and 5V connector. <br> <br> <br>3, Digital Control Connector (isolation) : <br> <br>Outside PWM: External PWM signal input for speed governing <br>PWM Duty Cycle Range:0-100% <br>PWM Frequency Range:800Hz-30kHz, recommend using 16kHz, low level effective. <br>Using External PWM Signals for Speed Governing:4-digit DIP switch is set as "0~5V - PWM"(SW1 - ON, SW2 - OFF, SW3-OFF, SW4-ON SW3-ON SW4-OFF <br>DIR: Motor direction control conn Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.