The **EMMT-AS-150-LK-HT-R2MY** is a high-performance AC synchronous servo motor manufactured by **Festo**. It is part of the EMMT-AS series, designed for demanding industrial automation tasks requiring high precision and dynamic response. --- ## 1. Technical Specifications Overview The electronic and electromechanical characteristics are summarized in the table below: | Feature | Specification | | :--- | :--- | | **Motor Type** | AC Synchronous Servo Motor | | **Flange Size** | 150 mm | | **Nominal Voltage** | 565 V DC (Intermediate circuit voltage) | | **Nominal Torque** | ~28 Nm to 40 Nm (depending on drive configuration) | | **Feedback System** | Absolute Encoder (Single-turn or Multi-turn) | | **Interface** | OCP (One Cable Plug) - Digital Link | | **Protection Class** | IP67 (Housing and Plug connector) | | **Insulation Class** | F (up to 155°C) | --- ## 2. Key Electronic Components ### A. Integrated Digital Encoder The motor features a high-resolution absolute encoder. Unlike older resolver-based systems, this digital feedback provides: * **Precision:** Extremely high resolution for positioning. * **Electronic Rating Plate:** The motor stores its specific data (nominal current, torque constant, etc.) internally. The drive (CMMT-AS) reads this automatically upon connection for "Plug & Work" configuration. ### B. Single Cable Technology (OCP) The "LK" designation in the part number refers to the **One Cable Plug** system. * **Power + Signal:** Motor power, brake control, and encoder feedback are all transmitted through a single hybrid cable. * **Electronic Benefit:** Reduces electromagnetic interference (EMI) risks through specialized internal shielding and simplified grounding. ### C. Holding Brake (Electronic Control) The motor includes an integrated spring-loaded holding brake. * **Operation:** It is electronically released via 24V DC logic from the motor controller. * **Safety:** It acts as a "fail-safe" component, locking the shaft in the event of a power loss. --- ## 3. Product Code Breakdown Understanding the suffix allows for precise electronic identification: | Code Segment | Meaning | | :--- | :--- | | **EMMT-AS** | Brushless AC Synchronous Servo Motor | | **150** | Flange size (150mm) | | **LK** | Hybrid Central Connector (One Cable Plug) | | **HT** | High Torque winding version | | **R2** | Redundant encoder / specific resolution variant | | **MY** | Integrated multi-turn absolute encoder | --- ## 4. Connection Logic Because this is a brushless motor, it requires a 3-phase inverter (Servo Drive) to operate. The electronic commutation is handled by the drive based on the encoder position: ```yaml Signal Flow: [Servo Drive (CMMT-AS)] <--- Hybrid Cable ---> [EMMT-AS Motor] | | |-- Power (U, V, W, PE) ------------------------|--> Stator Windings |-- Brake (24V DC) -----------------------------|--> Mechanical Brake |-- Encoder Data (Digital Link) <---------------|-- Absolute Encoder ```