The **XHS35F-100-R2-FS-XPROGABZ** is a high-performance industrial incremental encoder manufactured by BEI Sensors (Sensata Technologies). This specific part is designed for heavy-duty feedback in automation and motor control. --- ### ## Technical Specifications Overview The following table breaks down the electronic and mechanical characteristics of the device: | Feature | Specification | | :--- | :--- | | **Encoder Type** | Incremental | | **Resolution** | 100 Pulses Per Revolution (PPR) | | **Shaft Design** | 1.0" Through-Hollow Shaft | | **Output Signal** | ABZ (Quadrature A & B with Index Z) | | **Mounting** | Flex Spring Mount (FS) | | **Series** | XHS35 (Extreme Heavy Duty) | --- ### ### Core Electronic Components & Functionality #### 1. Optical Sensing Mechanism The "XHS35" series utilizes an internal LED light source and a photodiode array. As the shaft rotates, an internal coded disc interrupts the light beam, converting mechanical rotation into square-wave electrical pulses. #### 2. Quadrature Output (ABZ) * **Channels A & B:** These two channels are offset by 90 electrical degrees. This allows the controller to determine both the **speed** and the **direction** of rotation. * **Channel Z (Index):** This provides a single pulse per full 360-degree revolution, acting as a reference point or "home" position. #### 3. Driver Circuits This model typically features **Differential Line Drivers** (such as RS-422). * **Purpose:** It sends complementary signals (A, /A, B, /B, Z, /Z). * **Benefit:** This design provides high noise immunity, allowing the encoder to transmit data over long cable runs in electrically noisy industrial environments. #### 4. Power Supply & Protection * **Voltage Range:** Generally operates on a wide input range (e.g., 5-28 VDC). * **Protection:** Includes reverse polarity protection and short-circuit protection on the outputs to prevent damage during installation or wiring errors. --- ### ### Mechanical & Environmental Durability Because this part belongs to the "Extreme Duty" family, the electronic housing is designed to withstand: * **Vibration/Shock:** High resistance to mechanical stress. * **Sealing:** Often rated IP65 or higher to protect internal electronics from dust and moisture. * **Temperature:** Designed to operate reliably across a wide industrial temperature range (typically -40°C to +100°C).