The **SVB-4WA-R/CE** is a high-performance, compact, and energy-efficient solenoid valve typically manufactured by **Koganei**. This specific model belongs to the SVB series, designed for controlling the flow of fluids (usually air or vacuum) in automation and robotic applications. Below is a breakdown of its electronic and electromechanical specifications. --- ### 1. Key Technical Specifications The "R/CE" suffix typically denotes specific electrical ratings and compliance standards (CE marking for European safety standards). | Component / Feature | Specification Details | | :--- | :--- | | **Operating Voltage** | 24V DC (Standard for Industrial PLC control) | | **Power Consumption** | Approx. 0.5W to 1.0W (Low power design) | | **Electrical Connection** | Plug-in connector or Lead wire (Model dependent) | | **Indicator** | Integrated LED status light (Red/Green) | | **Surge Suppression** | Built-in Metal Oxide Varistor (MOV) or Diode | | **Duty Cycle** | 100% Continuous Duty | | **Protection Class** | IP40 or IP65 (depending on connector type) | --- ### 2. Electronic Component Breakdown #### A. Solenoid Coil The heart of the valve is the electromagnetic coil. When 24V DC is applied, the coil generates a magnetic field that moves an internal plunger. The SVB-4WA uses a **low-wattage coil**, which reduces heat generation and allows for high-density mounting without overheating adjacent components. #### B. Surge Suppressor To protect the controlling PLC (Programmable Logic Controller) or Transistor output from "back EMF" (voltage spikes) created when the coil is de-energized, the R/CE model includes a built-in suppressor circuit. This prevents electrical noise and extends the life of the switching contacts. #### C. LED Indicator A small SMD (Surface Mount Device) LED is integrated into the housing. This allows technicians to visually confirm if the valve is receiving power, significantly simplifying troubleshooting in complex manifolds. #### D. Connection Interface The "CE" designation ensures the electrical insulation and electromagnetic compatibility (EMC) meet strict regulatory requirements, reducing interference with other sensitive electronic sensors nearby. --- ### 3. Functional Logic * **Action Type:** 4-way, 2-position valve. * **Return Mechanism:** Single solenoid with a spring return or internal pilot return. * **Response Time:** Extremely fast (typically <15ms), making it ideal for high-speed pick-and-place electronics assembly. --- ### 4. Circuit Example If you are wiring this to a NPN or PNP PLC output: ```c [PLC Output] ----(+)----> [Terminal 1: Red/Brown] ----(Coil/LED) [DC Com] ----(-)----> [Terminal 2: Black/Blue] ``` *Note: Polarity must be observed if the unit contains a suppression diode.*