Descriptions: _x000D_ 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._x000D_ _x000D_ _x000D_ Features: _x000D_ Can support AC and DC input. Non-existent power supply polarity problems. _x000D_ Ultra-high voltage scope, support 15-160VDC Input, support 12-110VAC input. _x000D_ Large heat sink with mounting holes. _x000D_ Ultra-high-power control. support 5A current. _x000D_ 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. _x000D_ 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 . _x000D_ 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. _x000D_ This drive can't fit for the DC motor that DC resistance is