1、The module is to convert frequency pulse signal of 0-5 KHz into an analog voltage signal of 0-10V. 2、The input pulse level of 5V 12V 24V and can be directly input without string resistor. But the input signal frequency should be maintained for more than 0.5 seconds, and the output current is 5mA. 3、The converter can be used for interface conversion between PLC and inverter or interface matching control between motion control card and inverter. 4、The optical isolate is used in the input end of the signal to ensure the anti-interference ability. 5、The multi-coil potentiometer on the board is used to calibrate the corresponding relationship between frequency and voltage. Features: The converter can be used for interface conversion between PLC and inverter or interface matching control between motion control card and inverter. The input pulse level of 5V 12V 24V and can be directly input without string resistor. But the input signal frequency should be maintained for more than 0.5 seconds, and the output current is 5mA. The optical isolate is used in the input end of the signal to ensure the anti-interference ability. Specification: Size:4.5 x 4.7 x 1.7cm / 1.77 x 1.85 x 0.67in Relationship,Linearity: 500Hz to 1V 2.5Khz to 5V 5Khz to 10V Package List: 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.