The **EMMS-AS-100-MK-HS-RMB** is a high-performance AC synchronous servo motor manufactured by **Festo**. It is designed for precise positioning and motion control tasks, typically used in conjunction with a motor controller (like the Festo CMMP-AS). Below is a breakdown of its technical electronic and electromechanical specifications. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Motor Type** | AC Synchronous Servo Motor | | **Nominal Voltage** | 565 V DC | | **Nominal Current** | 3.3 A | | **Peak Current** | 15.0 A | | **Nominal Torque** | 5.69 Nm | | **Peak Torque** | 15.4 Nm | | **Nominal Speed** | 3,000 RPM | | **Max. Speed** | 3,400 RPM | | **Protection Class** | IP65 (housing and connection) | --- ### 2. Electronic Components & Features #### A. Feedback System (Encoder) The "RMB" suffix indicates the specific feedback type: * **Type:** Multi-turn Absolute Encoder. * **Technology:** Inductive/Magnetic or Optical (depending on the specific revision, usually high-resolution digital). * **Function:** It tracks the exact position of the rotor. Because it is **Multi-turn**, it remembers its position even after a power cycle, eliminating the need for a "homing" run in most applications. #### B. Integrated Holding Brake The "B" in the suffix stands for **Brake**: * **Operating Principle:** Spring-applied, DC-operated. * **Purpose:** It holds the motor shaft in place when power is removed, preventing vertical axes from falling or ensuring the load stays static during an emergency stop. #### C. Winding Characteristics * **Insulation Class:** Class F (up to 155°C). * **Temperature Monitoring:** It contains an integrated **PTC (Positive Temperature Coefficient)** resistor or a temperature sensor. This allows the motor controller to monitor the internal heat and trigger a shutdown if the motor exceeds safe thermal limits. #### D. Connection Interface The motor utilizes standardized M23 circular connectors: 1. **Power Connector:** Handles the 3-phase AC supply (U, V, W), the Ground (PE), and the 24V supply for the holding brake. 2. **Signal/Encoder Connector:** Transmits the high-speed data from the absolute encoder and the temperature sensor signals back to the drive. --- ### 3. Model Code Breakdown | Code Segment | Meaning | | :--- | :--- | | **EMMS-AS** | Series: Standard AC Synchronous Motor | | **100** | Flange Size (100mm) | | **MK** | Overall Length (Medium/Middle) | | **HS** | High Speed / High Output | | **R** | Encoder Type: Multi-turn Absolute | | **M** | Connection Type: M23 Plug | | **B** | Feature: Integrated Holding Brake | --- ### 4. Integration Logic To operate this motor, a specific electronic infrastructure is required: ```mermaid graph LR A[PLC/Controller] --> B[Servo Drive CMMP-AS] B --> C[Power Cable] B --> D[Encoder Cable] C --> E[EMMS-AS Motor] D --> E ```