## FCA-5B-R: Technical Overview The **FCA-5B-R** is a specific electronic component primarily known within the industrial automation and robotics sector. It is an **Encoder Cable** (typically a feedback cable) designed for use with **Sanyo Denki SANMOTION R series** AC servo motors and drivers. --- ### 1. Component Specifications Below are the typical technical parameters associated with this part: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Sanyo Denki | | **Component Type** | Encoder Feedback Cable | | **Compatibility** | SANMOTION R Series Servo Systems | | **Length (Standard)** | 5 Meters (indicated by the '5' in the part number) | | **Bending Type** | Robot/Flexing Grade (indicated by 'R') | | **Direction** | Straight/Standard (varies by sub-model) | --- ### 2. Key Electronic Features The FCA-5B-R is more than a simple wire; it is engineered to maintain signal integrity in high-noise environments. * **Shielding:** It features high-density braided shielding to prevent Electromagnetic Interference (EMI). This is critical because encoders transmit high-frequency pulses that are sensitive to electrical noise from the motor's power lines. * **Twisted Pair Wiring:** Internally, the data lines (A, B, Z phases) are twisted in pairs to cancel out differential mode noise. * **Flexibility (The "R" Suffix):** The "R" designation signifies **Robot Grade** or "High Flex." This means the internal copper strands are much finer and the insulation is made of specialized polymers (usually PVC or PUR) designed to withstand millions of bending cycles in moving cable carriers. * **Low Capacitance:** The insulation material is chosen to minimize capacitance, ensuring that the encoder's square-wave signals do not become "rounded" over the 5-meter distance, which would lead to positioning errors. --- ### 3. Connector Pinout Layout While specific pinouts can vary based on the motor frame size, these cables typically interface between: 1. **Motor Side:** A circular industrial connector (often IP67 rated) or a compact rectangular connector. 2. **Driver Side:** A high-density D-Sub or a proprietary Sanyo Denki connector that plugs directly into the servo amplifier's feedback port. --- ### 4. Applications The FCA-5B-R is used in environments where precision and motion are required: * **CNC Machining:** Connecting the controller to the axis motors. * **Robotic Arms:** Where the cable must endure constant articulation. * **Pick-and-Place Machines:** High-speed assembly lines requiring 5-meter reach from the control cabinet.