The **EMMT-AS-100-S-HS-RMB** is a high-performance AC synchronous servo motor manufactured by **Festo**. It is designed for precise positioning tasks, typically paired with the CMMT-AS servo drive series. ### 1. Technical Specification Overview The electronic and electromechanical characteristics are summarized in the table below: | Feature | Specification | | :--- | :--- | | **Motor Type** | AC Synchronous Servo Motor | | **Flange Size** | 100 mm | | **Output Power** | ~2.5 kW to 3.5 kW (winding dependent) | | **Nominal Voltage** | 325 V DC / 565 V DC | | **Feedback System** | Absolute Encoder (Single-turn or Multi-turn) | | **Connection Technology** | OCP (One Cable Plug) - Hybrid Cable | | **Protection Class** | IP67 (with optional shaft seal) | | **Brake Option** | Integrated Holding Brake (RMB model) | --- ### 2. Key Electronic Components & Features #### A. Digital Feedback System (Encoder) The motor utilizes a high-resolution digital encoder. * **Protocol:** EnDat 2.2 or Hiperface DSL (typically utilizes the Festo digital interface for the CMMT drive). * **Function:** It communicates position data, speed, and electronic "nameplate" information to the drive, allowing for "Plug & Work" automatic parameterization. #### B. The "RMB" Designation (Holding Brake) The **RMB** suffix indicates specific electronic and mechanical hardware: * **Integrated Holding Brake:** An electromagnetic spring-loaded brake. * **Operation:** It requires a 24V DC signal to release. In the event of a power failure, the brake engages automatically to hold the load in position. * **Logic:** It is controlled directly via the hybrid cable interface from the servo drive. #### C. Hybrid Connection (One Cable Plug) Unlike older servo motors that require separate power and encoder cables, this model uses a single-cable solution: * **Integrated Design:** Power phases (U, V, W), PE, brake control lines, and digital feedback signals are all housed in one shielded cable. * **Benefits:** Reduces electromagnetic interference (EMI) issues, simplifies wiring, and reduces the space required in cable carriers. #### D. Winding & Thermal Protection * **Insulation Class:** Class 155 (F), providing high thermal resistance. * **Thermal Sensor:** Integrated PT1000 or NTC thermistor within the windings to monitor temperature and prevent burnout via the drive’s firmware. --- ### 3. Wiring Logic (Pinout Concept) While the physical connection is a single hybrid plug, the internal electronic routing follows this logic: ```yaml Pin/Group | Function | Description ----------|--------------------|----------------------------------- Phase U | Power Supply | Motor Phase 1 Phase V | Power Supply | Motor Phase 2 Phase W | Power Supply | Motor Phase 3 PE | Grounding | Protective Earth Brake +/- | 24V DC Control | Holding Brake Release (24V = Open) Signal | Digital Encoder | Bi-directional Data (Position/Temp) ```