ZK-BMG PWM DC Motor Controller Adjustable Speed DC 9-60V 12V 24V 48V 12A Digital Display Encoder Duty Ratio Frequency Controller COD

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working voltage: DC9V~60V, input anti-reverse connection protection rated current: 12A maximum current 20A maximum power: 500W working frequency: 1KHz~99KHz adjustable, 1KHz step, default frequency of 20KHz, accuracy of about 1% duty cycle: 0-100%, 1% step product size: 79mm*43mm*26mm Install hole size:76.5mm*39.3mm product weight: 43g(Naked heavy)65.5g(With the packing) All parameters can be set to power down storage Operation of digital encoder knob In the default interface :(the duty cycle is displayed by default) Short press -- switch motor start and stop Long press 10s -- to enter the setting interface Counterclockwise rotation -- the duty ratio decreases Clockwise rotation -- increased duty cycle Under the setting screen: Short press -- select setting parameters and switch between ON-OFF,duty cycle lower limit, duty cycle upper limit and working frequency. ON-OFF is to set the module to be normally open or closed by default. Rotate the encoder to switch to the default on-off state.The display form of duty cycle lower limit is "L" two digits, the display form of duty cycle upper limit is "H" two digits or "100", and the display form of working frequency is "F" two digits. Long press 2s -- exit the setting interface Counterclockwise rotation - the corresponding Settings are reduced Clockwise rotation - the setting parameters increase accordingly The stop button interface on the back External switch keys or 3.3v level.Do not use in complex electromagnetic environments because there is no protection inside the circuit.(note that the external switch should use the self-reset button or key, press to open and then press to close;It cannot realize the function of output on when the switch is always closed and output off when the switch is not closed.