The **FP2-V120-R** is a specific electronic component within the **Panasonic (formerly Matsushita/NAiS) FP2 series** Programmable Logic Controller (PLC) ecosystem. It is primarily identified as a **Power Supply Unit (PSU)** designed to power the backplane and the modules attached to it. --- ### 1. Technical Specifications The FP2-V120-R is a high-performance power module. Below are the core technical parameters: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 100V to 240V AC (Auto-ranging) | | **Input Frequency** | 50/60 Hz | | **Output Voltage** | 5V DC (Internal bus) | | **Output Current** | 12.0 A (High capacity) | | **Installation Position** | Dedicated Power Slot (Leftmost on backplane) | | **Status Indicators** | LED (Power, Error, etc.) | --- ### 2. Key Features * **High Current Output:** The "120" in the model name signifies its ability to provide up to **12A** at 5V DC. This is crucial for large-scale systems with many I/O or specialized motion control modules. * **Redundancy Support:** The "-R" suffix typically indicates features related to **Redundancy**. In high-reliability industrial environments, two of these units can often be used in a redundant configuration to ensure the system remains operational if one power supply fails. * **Protection Circuitry:** Includes built-in overcurrent and overvoltage protection to prevent damage to the CPU and expensive I/O modules. --- ### 3. Usage and Compatibility The FP2-V120-R is not a standalone component; it must be used within the FP2/FP2SH hardware architecture. 1. **Backplane Integration:** It slides into the far-left slot of an FP2 backplane (Base Unit). 2. **System Scaling:** Because it provides 12A, it is preferred over the lower-capacity V100 (7A) or V110 models when the total power consumption of all connected modules (CPU, Ethernet, Analog, Digital I/O) exceeds 7A. 3. **Wiring:** The AC mains power is connected to the screw terminals on the front of the unit. --- ### 4. Comparison with Standard Units | Feature | FP2-V120-R | Standard FP2-V100 | | :--- | :--- | :--- | | **Capacity** | 12A (High) | 7A (Standard) | | **Redundancy** | Supported | Not Supported | | **Application** | Critical/Large Systems | Standard Machines |