Servo Feedback Cable | Allen-Bradley 2090-UXNFBMP-S30

The 2090-UXNFBMP-S30 is a Bulletin 2090 industrial-grade, non-flexible feedback cable assembly designed for static (non-flexing) servo motor applications. Measuring 30 meters (98.4 ft) in length, this cable interfaces high-resolution and incremental encoders between Allen-Bradley servo drives and compatible motors. It features a motor-end bayonet connector, a drive-end D-shell connector, and a durable 300 V black thermoplastic elastomer (TPE) jacket engineered for harsh industrial environments.

Cable Architecture & Signal Transmission

The cable assembly provides shielded signal lines tailored for reliable transmission of high-resolution serial and incremental encoder feedback data. The motor-end bayonet connector ensures a quick-locking, vibration-resistant physical coupling, while the drive-end D-shell connector mounts securely to the servo drive's feedback port. Proper 360-degree shield termination minimizes electromagnetic interference (EMI) in high-noise automation settings.

Because this is a standard non-flexing cable, it is constructed for fixed tray, conduit, or static routing. Operating it in continuous-flexing applications, such as high-speed cable carriers, will lead to premature fatigue of the internal conductors and shield degradation.

Environmental Performance & Approvals

The black thermoplastic elastomer (TPE) jacket offers superior resistance to industrial oil mist, sunlight (UV radiation), and environmental abrasion. The cable structure is UL Registered to AWM (Appliance Wiring Material) requirements, meeting standard electrical and flame-retardant industrial safety criteria for 300 V system applications.

Routing and Installation Guidelines

Route the feedback cable in dedicated cable trays or conduits separated from high-voltage AC motor power cables to prevent cross-talk and signal distortion. When installing, adhere to the minimum bend radius specifications for static cables and ensure the motor bayonet connector is fully twisted into the locked position prior to powering the drive.

Frequently Asked Questions

Q: Can the 2090-UXNFBMP-S30 cable be installed in a continuous-flex cable carrier or drag chain? A: No, the "N" designation in the model number indicates a non-flexible cable intended solely for static or fixed routing. Continuous motion requires a flex-rated cable variant.

Q: What type of motor encoders does this 30-meter cable support? A: The cable supports both high-resolution absolute encoders and standard incremental encoders used on compatible Allen-Bradley servo motors.