Features: PWM converts digital signals into analog signal (0 to 10V). Input digital signal can be 5V or 24V level 0-100% PWM signal. Output analog signal can be 0-10V voltage. Can be used for industrial control panel PLC or other signal interface switching. This module is easy to wire and convenient to use. Specification: Condition: 100% new and high quality Current: . 12mA Power supply input voltage: 12-30V Size: Approx. 5 x 4.5cm / 1.97 x 1.77inch Weight: 20g Quantity: 1pc Using method: PWM signal input frequency range: 1KHZ-3KHZ PWM signal input level range: 4.5V to 10V to level, jumper inserted at 5V. This type signal mainly for conventional industrial control card (such as for board), for 5V the CPU interface. 12 to 24V to level, jumper inserted at 24V. This type signal mainly for conventional PLC interface 0-10V analog voltage output explanation: When the signal input port is not connected, the output port gives 0V. The first time when we power on this module, we better calibrate it: find a 50% duty ratio signal, connect to DIN-, DIN+, the amplitude matches corresponding jumper. When frequency is at 1kHz ~ 3kHz, use a multi-meter to test AO, GND. The meter should be showing around 5.4V. We adjust the potentiometer on the converter module to make multi-meter shows about 5.4V. After this is done, we have calibrated and matched pulse signal with this converter module. The module has a definition of 0.1V. Output current 10mA. If duty ratio is in opposite to voltage, we can select PWM output pin STEP LOW / ACTIVE for software. Package Included: 1 x PWM Signal to Voltage Converter Note: After power-up, when there is no input signal, the output is 0V. There is output only when there is input. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_