The **M2AS1-4313-R/Q** refers to a specific configuration of a high-performance **Step-Servo Motor** (Integrated Motor and Drive) manufactured by **Applied Motion Products**. This part belongs to the SSM series, which combines a brushless motor, an encoder, and a drive/controller into a single package. --- ### 1. Key Technical Specifications The electronic components within this unit are designed to provide closed-loop control, which eliminates the common "stalling" issues found in traditional open-loop stepper motors. | Feature | Specification | | :--- | :--- | | **Motor Type** | NEMA 17 Step-Servo (Integrated) | | **Communication** | RS-485 / Modbus RTU | | **Input Voltage** | 12 - 48 VDC | | **Feedback Device** | 20,000 counts/rev Digital Encoder | | **Control Modes** | Pulse/Direction, Velocity, SCL, Modbus | | **Inputs/Outputs** | 3 Digital Inputs, 1 Digital Output | | **Protection** | Over-voltage, Under-voltage, Over-temp | --- ### 2. Internal Electronic Subsystems The "R/Q" designation indicates the communication and control capabilities of the internal circuitry: #### A. The Integrated Drive/Controller Unlike a standard motor that requires an external driver, the M2AS1-4313 contains a built-in PCB that handles: * **Current Control:** Uses high-frequency PWM to manage power to the motor phases. * **Vector Control (FOC):** It treats the stepper motor like a 2-phase brushless motor, adjusting current based on real-time load. #### B. Encoder (Feedback System) The "Step-Servo" technology relies on a high-resolution optical or magnetic encoder. This allows the electronics to: * Correct position errors. * Reduce heat by only providing the current required for the actual load. * Enable "Stall Detection" and "Stall Prevention." #### C. Communication Interface (R/Q Options) * **RS-485 (R):** Supports multi-drop networking. You can daisy-chain up to 32 motors and control them via a single PC or PLC using the SCL (Serial Control Language). * **Q-Programming (Q):** This signifies that the internal electronics have non-volatile memory capable of storing and executing stand-alone programs. The motor can run complex motions without a constant connection to a master controller. --- ### 3. Connection and Wiring Electronics The unit typically features several connectors for electronic integration: 1. **Power Connector:** 2-pin terminal for VDC input. 2. **I/O Connector:** Includes pins for: * **Step/Dir Signals:** For use with external pulse generators. * **Enable/Fault Signals:** For safety and status monitoring. 3. **Communication Port:** 5-pin screw terminal or RJ45 for RS-485 networking. --- ### 4. Part Number Breakdown (Suffix Meaning) * **M2:** NEMA 17 Frame size. * **AS1:** Step-Servo technology, Standard torque. * **4313:** Motor stack length and winding configuration. * **R:** RS-485 Communication. * **Q:** Built-in motion controller (Stand-alone capability). ---