The **EMMT-AS-60-S-LS-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. --- ### 1. Technical Specifications Overview The model code reveals the specific electronic and mechanical characteristics of the motor: | Feature | Specification | | :--- | :--- | | **Motor Type** | AC Synchronous Servo Motor | | **Flange Size** | 60 mm | | **Length** | S (Short) | | **Winding** | LS (Low Voltage / Standard Speed) | | **Output Shaft** | R (Radial shaft seal / Round shaft) | | **Brake** | MB (Integrated Friction Brake) | --- ### 2. Key Electronic Components #### A. Digital Encoder (EnDat 2.2) This motor utilizes a **single-cable solution** with a high-resolution digital encoder. * **Protocol:** EnDat 2.2 (Absolute). * **Function:** It communicates the exact position of the rotor to the motor controller instantly upon power-up, eliminating the need for homing runs. * **Electronic Nameplate:** The encoder stores motor parameters (current limits, torque constants), allowing for "Plug and Play" configuration with Festo drives. #### B. The Holding Brake (MB) The "MB" suffix indicates an integrated 24V DC electromagnetic friction brake. * **Operating Principle:** It is a "fail-safe" brake. When power is removed, the brake engages to hold the load in position. * **Purpose:** Primarily used to prevent vertical axes from falling during power loss or emergency stops. #### C. Winding Characteristics (LS) The "LS" designation refers to the internal copper windings: * **Insulation Class:** Class 155 (F), ensuring durability against high temperatures. * **Thermal Protection:** Integrated temperature sensors (typically PT1000 or KTY) monitor the windings to prevent burnout by signaling the drive to de-rate or shut down if overheating occurs. --- ### 3. Connection and Interface The motor uses a hybrid M23 plug connector, which combines several electronic paths into one cable: 1. **Power Leads:** Three phases (U, V, W) plus Ground (PE) for the motor supply. 2. **Brake Leads:** Two wires for the 24V DC brake control. 3. **Data Pair:** High-speed digital communication for the encoder signal. ### 4. Performance Metrics (Electronics Related) | Parameter | Value (Approx.) | | :--- | :--- | | **Nominal Voltage** | 360 V DC - 565 V DC | | **Nominal Current** | ~1.4 A | | **Peak Current** | ~5.5 A | | **Nominal Torque** | ~1.3 Nm | | **Max Speed** | 6,000 RPM | ---