Descriptions: This motor speed controller can support AC and DC input. Non-existent power supply polarity problems. Large heat sink with mounting holes. And with a wide range of support motor. It can be used to control most of the DC motor in the market. Features: Can support AC and DC input. Non-existent power supply polarity problems. Ultra-high voltage scope, support 15-160VDC Input, support 12-110VAC input. Large heat sink with mounting holes. Ultra-high-power control. support 5A current. Except the board inside a PWM speed control, can also support an external PWM signal input speed control, external PWM input requirements: level 3.5-12V VPP, the frequency of 1K-10KHZ, the duty ratio is 0% to 93%. in particular apply in MCH3 spindle speed control. when with external PLC control, a 2K resistor is used. A wide range of support motor. It can be used to control most of the DC motor in the market. As long as the DC resistance of the motor is > 2 Ohms DC resistance . The conversion rate is about 97%, and the power of the plate is different when the voltage is different. 160VDC,2A motor load, limit no more than 2W. This drive can't fit for the DC motor that DC resistance is