Allen-Bradley 2090-CFBM7DF-CDAF90 Feedback Cable

Allen-Bradley 2090-CFBM7DF-CDAF90 Motor Feedback Cable

The Allen-Bradley 2090-CFBM7DF-CDAF90 is an ultra-long motor feedback cable. It ensures reliable signal transmission for incremental encoders in large-scale motion control systems over a distance of 90 meters.

Technical Specifications

• Manufacturer & Model: Allen-Bradley | 2090-CFBM7DF-CDAF90
• Product Series: Bulletin 2090 SpeedTEC
• Cable Function: Motor Feedback Only (Incremental Encoder)
• Cable Length: 90 meters
• Flexibility: Continuous-Flex (Cable Carrier Rated)
• Conductor: Multi-strand tinned copper (typically 28 AWG for signal integrity over long distance)
• Insulation Resistance: >100 MΩ·km (at 20°C)
• Capacitance (Conductor to Shield): Typically <110 pF/m
• Propagation Delay: <5 ns/m (critical for long-distance encoder signal timing)
• Shielding: Dual-layer (aluminum foil + high-density tinned copper braid), coverage >90%
• Jacket Material: PUR (Polyurethane), offering excellent abrasion and oil resistance
• Minimum Bend Radius (Static/Dynamic): 10x / 15x cable diameter
• Operating Temperature Range: -25°C to +85°C
• Motor End Connector: SpeedTec DIN Connector (IP67 rated)
• Drive End Connection: Flying-lead (color-coded for easy identification)

Installation & Wiring

• Attach the IP67-rated SpeedTec DIN connector to the motor's encoder housing.
• Carefully route the 90-meter cable, avoiding parallel runs with power cables to minimize interference.
• Terminate the color-coded flying leads to the corresponding 2090-series drive terminals (A, /A, B, /B, etc.).
• Ensure the cable shield is properly grounded at the drive end only to create a drain path for noise.
• For dynamic applications, secure the cable in a carrier with a bend radius no less than 15 times its diameter.

Packaging & Shipping

• Includes one Allen-Bradley 2090-CFBM7DF-CDAF90 90-meter continuous-flex feedback cable.
• Shipped on a heavy-duty wooden reel with edge protection.
• We ship worldwide via FedEx, UPS, or DHL with full tracking.
• Special handling for large/heavy reels to ensure safe delivery.

Frequently Asked Questions (FAQ)

• What is the maximum recommended distance for this cable? This 90m cable is engineered for reliable signal transmission up to its full length when installed correctly.
• Why are capacitance and propagation delay important specs? Low values are critical for preserving signal edge sharpness and timing accuracy over 90 meters, ensuring precise encoder counting.
• Is the PUR jacket suitable for harsh environments? Yes, the Polyurethane (PUR) jacket provides superior resistance to oils, chemicals, and abrasion compared to standard PVC.
• Can this cable be used in a stationary installation? Absolutely. Its high-flex design also makes it robust for fixed installations where durability is key.
• What if my application requires a different length? This is a standard 90m variant. Other standard lengths (like 50m, 75m) are available under different part numbers.

Contact for Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner: AutoNex Controls Limited

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