1The multi-turn potentiometer on the board is used to calibrate the frequency and output voltage. 2The signal input is isolated by diaphragm. Guaranteed anti-interference ability. 3If you need to use PLC, you can use common anode wiring mode, the power supply is powered by 24V, PUL+ pulse is connected to power supply, and PUL- is connected to signal pulse. 4If you need to use the encoder, the encoder should be rotated at a constant speed for more than 0.5 seconds. 5Frequency to voltage module, response time is about 0.3-0.5 seconds.