The **EMMT-AS-80-S-LS-RMB** is a high-performance AC synchronous servo motor manufactured by **Festo**. It is designed for precise positioning and dynamic movement in industrial automation. Below is a breakdown of its technical specifications and electronic components. --- ## 1. Technical Specifications The model name follows a specific nomenclature that defines its electronic and physical characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Series** | EMMT-AS | Brushless, permanent magnet synchronous servo motor. | | **Size** | 80 | Motor flange size (80mm). | | **Length** | S | Short stack length. | | **Winding** | LS | Low Speed / Specific voltage optimization. | | **Output** | R | Smooth shaft (no feather key). | | **Brake** | MB | Equipped with a 24V DC holding brake. | --- ## 2. Key Electronic Components ### A. Encoder System (Feedback) The motor uses a high-resolution digital feedback system. * **Type:** Absolute encoder, multi-turn. * **Protocol:** **Hiperface DSL** (Digital Servo Link). * **Advantage:** This is a "One Cable Solution" (OCP). Both the motor power and the digital encoder data are transmitted through a single hybrid cable, reducing wiring complexity and electronic noise. ### B. Integrated Holding Brake (MB) The "MB" suffix indicates an integrated electromagnetic brake. * **Operating Voltage:** 24V DC (+10% / -15%). * **Function:** It is a spring-applied safety brake used to hold the position of the load when the motor is de-energized. It is not designed for dynamic braking (stopping a moving load). ### C. Winding and Thermal Protection * **Insulation Class:** Class F (up to 155°C). * **Temperature Monitoring:** Integrated **PTC** or digital temperature sensor (via the encoder link) to prevent thermal overload of the windings. * **Protection Rating:** IP67 (when using a specialized cable), ensuring the electronics are protected against dust and water immersion. --- ## 3. Electrical Performance Data | Feature | Value | | :--- | :--- | | **Nominal Voltage** | 325 V DC / 565 V DC (depending on drive) | | **Nominal Current** | ~3.1 A | | **Peak Current** | ~10.5 A | | **Nominal Torque** | ~2.5 Nm | | **Max Speed** | 6,000 RPM | --- ## 4. Connection Interface The motor features a **rotatable M23 plug**. This connector handles: 1. **Power:** 3-phase AC (U, V, W) + Ground (PE). 2. **Brake:** +/- 24V DC signals. 3. **Feedback:** Digital communication lines for the absolute encoder.