The **EMMT-AS-80-M-LS-RMB** is a high-performance AC synchronous servo motor manufactured by **Festo**. It is part of the EMMT-AS series, designed for precise positioning and dynamic motion control applications. --- ### 1. Technical Specification Overview The model code reveals specific electronic and mechanical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **EMMT-AS** | Series | Brushless AC Synchronous Servo Motor | | **80** | Flange Size | 80 mm frame size | | **M** | Length | Medium stack length | | **LS** | Connection | Low Voltage / Single Cable Solution (OCP) | | **R** | Encoder Type | Absolute Encoder, Multi-turn | | **M** | Encoder Protocol | Hiperface DSL (Digital Single Line) | | **B** | Brake | Integrated holding brake (24V DC) | --- ### 2. Key Electronic Components #### A. The Encoder (Feedback System) This motor utilizes a **Multi-turn Absolute Encoder** using the **Hiperface DSL** protocol. * **Digital Single Line (DSL):** The motor power and feedback signals are integrated into a single cable. This reduces wiring complexity and minimizes electromagnetic interference (EMI) risks. * **Absolute Position:** It "remembers" its position even after power loss, eliminating the need for a homing run upon startup. #### B. Winding and Magnetic Design * **Synchronous Technology:** Uses permanent magnets on the rotor (Neodymium-iron-boron), ensuring high torque density and efficiency. * **Insulation Class:** Typically Class F (up to 155°C), allowing for high-duty cycles without thermal breakdown. #### C. Integrated Holding Brake The "B" suffix indicates a 24V DC spring-applied brake. * **Function:** It holds the motor shaft in position when power is removed. * **Safety:** It acts as a safety feature in vertical axes to prevent the load from falling during an emergency stop or power failure. --- ### 3. Electrical Performance Data (Typical) While exact values depend on the drive configuration (e.g., CMMT-AS), the 80-M series generally follows these parameters: | Parameter | Value (Approx.) | | :--- | :--- | | **Nominal Voltage** | 325 - 560 V DC | | **Nominal Torque** | ~ 2.6 - 3.2 Nm | | **Peak Torque** | ~ 7.5 - 10 Nm | | **Nominal Speed** | 3000 RPM | | **Max Speed** | Up to 6000 RPM | | **Protection Class** | IP67 (Housing and connection) | --- ### 4. Connection Interface The motor features a rotatable plug for easy installation. Since it is a **Single Cable Solution**, the pinout includes: * **Power Phases:** U, V, W * **Protective Earth:** PE * **Brake Control:** +24V / 0V * **Digital Feedback:** Two wires for the Hiperface DSL data stream.