The **EMMT-AS-60-M-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. ### Technical Specifications Below are the primary electronic and electromechanical specifications for this specific model: | Parameter | Specification | | :--- | :--- | | **Motor Type** | AC Synchronous Servo Motor | | **Flange Size** | 60 mm | | **Output Power** | ~0.7 to 1.1 kW (depending on drive configuration) | | **Nominal Voltage** | 325 V DC / 565 V DC | | **Nominal Torque** | 2.1 Nm | | **Peak Torque** | 7.0 Nm | | **Nominal Speed** | 3,000 - 6,000 rpm | | **Insulation Class** | F (up to 155°C) | | **Protection Class** | IP67 (Housing and Connection) | --- ### Key Electronic Components #### 1. Integrated Encoder (Feedback System) The "HS" in the product code refers to the high-resolution encoder system. * **Type:** Absolute Encoder, Multi-turn. * **Protocol:** Digital "Hiperface DSL" or similar single-cable technology. * **Function:** It tracks the motor's position even when powered down, eliminating the need for a "homing" run upon startup. It communicates digitally with the controller to provide real-time velocity and position data. #### 2. Holding Brake (RMB suffix) The "RMB" indicates the presence of an integrated spring-loaded holding brake. * **Operating Principle:** Friction-based holding mechanism. * **Voltage:** 24V DC. * **Function:** It is used to hold the motor shaft in place when the power is cut (emergency stop or vertical loads) to prevent sagging. It is **not** a dynamic brake and should not be used to slow the motor down during operation. #### 3. Single-Cable Technology (OCP) The EMMT-AS series utilizes **One Cable Plug (OCP)** technology. * **Integration:** Power, encoder signals, and brake control are all combined into one shielded cable and a single M23 rotatable connector. * **Benefits:** Reduces wiring complexity, minimizes electromagnetic interference (EMI), and lowers installation time. #### 4. Thermal Protection * **Sensor Type:** Integrated temperature sensors (typically Pt1000 or KTY). * **Function:** Monitors the winding temperature. If the motor exceeds its thermal limit, the signal is sent via the encoder line to the servo drive to trigger an automatic shutdown, preventing permanent damage to the magnets or copper windings. --- ### Wiring Logic The motor's internal electronics are routed through a standardized pinout: | Connection Type | Purpose | | :--- | :--- | | **U, V, W** | 3-Phase AC Power to Stator | | **PE** | Protective Earth / Ground | | **Data + / -** | Bi-directional digital communication (Encoder + Temp) | | **Brake + / -** | 24V DC control for the holding brake |