Features Function: Professional manufacture, this module can convert the pulse signal of 0-1KHz frequency into the analog voltage signal of 0-10V. Application: The module can be used for interface conversion between PLC and inverter, or interface matching control between motion control card and inverter. Use: The input pulse level of 5/12/24V can be directly input without resistance, but the input signal frequency should be maintained for more than 0.5 seconds. High Quality: Stable operation, all parts of the converter module are carefully selected for good durability. Size: 4.5 x 4.7 x 1.7cm / 1.77 x 1.85 x 0.67in, the frequency-to-voltage conversion module is small and compact, easy to install and carry. Specification:  Item Type:Frequency to Voltage Converter Module Size:4.5 x 4.7 x 1.7cm / 1.77 x 1.85 x 0.67in Relationship,Linearity: 100Hz to 1V 0.5Khz to 5V 1Khz to 10V Package List: 1 x Converter Module Note: 1. The multi-turn potentiometer on the board is used to calibrate the corresponding relationship between frequency and voltage. 2. The input power supply voltage range is 12-30VDC. It is recommended that the power supply voltage be 15-24VDC. When the 12V level is used, the power supply cannot be powered by 12VDC. At least 15VDC power supply is required. If you need to use 12V power supply, you can also order 12VDC. Power converter. At 24 levels, the power supply needs to be powered by 24VDC 3. The signal input end is isolated by diaphragm. Guaranteed anti-interference ability. 4. If you need to use PLC, support NPN type. Must have a ground wire. 5, if you need to use the encoder, the encoder is required to continue to rotate at a constant speed for more than 0.5 seconds. 6, frequency and voltage conversion module, response time is about 0.3-0.5 seconds. 7. 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 normal function. 8. Correspondence in use If there is a deviation, 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. Package List