The **M2VF-5FW-R2** is a high-performance **V/F (Voltage-to-Frequency) Converter** produced by **M-System**. It is designed to convert a standard analog DC voltage signal into a pulse frequency signal, typically used for interfacing with PLCs, counters, or remote telemetry units. --- ## 1. Core Technical Specifications The model number breakdown (M2VF-5FW-R2) indicates specific hardware configurations: | Component | Specification | Description | | :--- | :--- | :--- | | **Input Signal** | 0 – 5V DC | Standard analog voltage range. | | **Output Signal** | Pulse (Open Collector) | NPN transistor or dry contact output. | | **Frequency Range** | 0 – 10 kHz (Configurable) | High-speed pulse generation. | | **Power Input** | 24V DC | Industrial standard low voltage power. | | **Isolation** | 3-Way Isolation | Isolation between Input, Output, and Power. | --- ## 2. Key Electronic Features ### A. Signal Conversion Logic The internal circuitry uses a high-precision integrator and comparator loop. The input DC voltage is integrated over time; when the threshold is reached, a pulse is fired, and the integrator resets. This ensures a linear relationship between voltage and frequency. ### B. 3-Way Isolation This part features 2000V AC isolation. This protects the control system from: * Ground loops. * Voltage surges on the input side. * High-frequency noise interference. ### C. Output Characteristics The **"FW"** designation often refers to the specific frequency scaling and output type (Open Collector). This allows the device to act as a switch, pulling a load to ground, making it compatible with most digital input cards. --- ## 3. Terminal Connection Diagram (Typical) ```text Terminal | Function ---------|------------------- 1 | Output (+) Pulse 2 | Output (-) Common 3 | Input (+) 0-5V 4 | Input (-) Common 5 | Power Supply (+) 6 | Power Supply (-) ``` --- ## 4. Applications * **Totalizing Flow Meters:** Converting a 0-5V flow rate signal into pulses for volume accumulation. * **Remote Monitoring:** Sending frequency signals over long distances (pulses are more resistant to noise than analog voltage). * **PLC Integration:** Feeding analog data into a high-speed counter module instead of an expensive analog input card.