1、The 0-3KHz frequency pulse signal is converted into a 0-10V analog voltage signal by this module. 2、The module can be used for interface conversion between PLC and frequency converter or matching control of interface between motion control card and frequency converter. 3、Input pulse level of 5V 12V 24V can be input directly without string resistance.But the input signal frequency, to maintain more than 0.5 seconds, the output current is 5mA. 4、The multi-coil potentiometer on the board is used to calibrate the corresponding relationship between frequency and voltage. 5、The optical isolate is used to ensure the anti-interference ability of the signal input. Features: The module can be used for interface conversion between PLC and frequency converter or matching control of interface between motion control card and frequency converter. Input pulse level of 5V 12V 24V can be input directly without string resistance.But the input signal frequency, to maintain more than 0.5 seconds, the output current is 5mA. The optical isolate is used to ensure the anti-interference ability of the signal input. Specification: Size:4.5 x 4.7 x 1.7cm / 1.77 x 1.85 x 0.67in Relationship,Linearity: 300Hz to 1V 1.5Khz to 5V 3Khz to 10V Package List: 1 x Converter Module Note: For use with PLC, support for NPN type. Must have a ground wire. If you need to use an encoder, you need to keep the encoder running at a constant speed for more than 0.5 seconds. If the signal input is turbine flow, etc., due to signal matching, an 817 diaphragm and a resistor must be added to match the flowmeter to function properly. If there is a deviation in the correspondence when using, you can adjust the blue potentiometer on the board to calibrate. At the time of shipment, we have adjusted the F/V potentiometer to a certain correspondence. It is generally not recommended to adjust it by itself.