The **XHS35F-50-R2-SS-XPROGAB** is a high-performance industrial incremental encoder manufactured by **BEI Sensors** (now part of Sensata Technologies). It is part of the XHS35 series, specifically designed for heavy-duty applications like motor feedback and industrial automation. Below is the detailed breakdown of its electronic and mechanical specifications. ### 1. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Model Series** | XHS35 (Hollow Shaft Encoder) | | **Resolution** | 50 Cycles Per Revolution (CPR) | | **Shaft Type** | 50 (specifically refers to the 1/2" or specialized bore size) | | **Connection Type** | Radial Connector (R2) | | **Output Type** | XPROGAB (Programmable / Specialized Output Logic) | | **Voltage Range** | Typically 5V to 28V DC | | **Housing Material** | Aluminum (standard) or Stainless Steel | | **IP Rating** | IP65 (standard dust and water resistance) | --- ### 2. Breakdown of the Part Number * **XHS35**: Represents the series (Hollow Shaft, 3.5-inch diameter). * **F**: Flexible mounting (usually indicates a tether or flex mount for motor integration). * **50**: The resolution or bore size designation (Note: in this series, it often refers to a 1/2" bore). * **R2**: Radial connector, often a M12 or MS-style 10-pin connector positioned on the side. * **SS**: Shaft Seal (Provides higher environmental protection). * **XPROGAB**: This suffix typically denotes a specialized electronic configuration, often including programmable output parameters or a specific line driver configuration (A, B, Z channels). --- ### 3. Electronic Characteristics #### Signal Outputs This encoder provides incremental signals, typically consisting of: * **Channel A & B**: Quadrature signals used to determine position and direction. * **Index (Z)**: A once-per-revolution pulse used for homing. * **Complementary Signals**: Usually includes $\bar{A}$, $\bar{B}$, and $\bar{Z}$ for noise immunity (Differential Line Driver). #### Protection Circuitry The "XPROGAB" electronics often include: 1. **Reverse Polarity Protection**: Prevents damage if the power supply leads are swapped. 2. **Short Circuit Protection**: Protects the output drivers against accidental grounding. 3. **ESD Protection**: High resistance to electrostatic discharge in industrial environments. --- ### 4. Typical Wiring Pinout (Standard MS Connector) | Pin | Function | Description | | :--- | :--- | :--- | | A | Channel A | Primary Pulse | | B | Channel B | Quadrature Pulse (90° offset) | | C | Channel Z | Index Pulse | | D | V+ | Supply Voltage (5-28V) | | F | Common | Ground (0V) | | G | Case | Shield/Chassis Ground | ---