2090-CFBM7DF-CEAA04 Allen-Bradley Feedback Cable

Allen-Bradley 2090-CFBM7DF-CEAA04 High-Resolution Encoder Cable

The 2090-CFBM7DF-CEAA04 is a 4-meter encoder cable designed for high-fidelity signal transmission. Part of the 2090 Dual Power/Feedback series, it supports SIN/COS and resolver feedback for precise servo applications.

Core Technical Specifications

• Brand & Series: Allen-Bradley 2090
• Model Number: 2090-CFBM7DF-CEAA04
• Cable Length: 4 Meters
• Cable Function: Motor Feedback Only
• Encoder Type: SIN/COS High-Resolution / Resolver
• Drive End Connector: Flying-Lead (Wire Ends)
• Motor End Connector: SpeedTec DIN Connector
• Flex Type: Standard (Non-Flex)
• Conductor Gauge: 22 AWG for signal pairs
• Number of Conductors: 12 conductors (typically 6 shielded pairs)
• Shielding: Double-layer: Aluminum Foil + ≥90% Braided Copper
• Capacitance (Pair-to-Pair): ≤ 80 pF/m
• Maximum Operating Voltage: 30V AC/DC
• Signal Bandwidth: DC to 3 MHz (-3dB point)
• Characteristic Impedance: 120 Ω ±5% (differential pairs)
• Propagation Delay Skew: ≤ 50 ps/m between pairs
• Operating Temperature: -25°C to +90°C
• Minimum Bend Radius: 8 x cable diameter (≥ 70mm)
• Jacket Material: PVC (Standard Grade), UL Recognized
• Cable Diameter: Approximately 8.5 mm
• Insulation Resistance: > 100 MΩ at 500V DC

Cable Performance & Design

• 4-meter length provides extended reach for flexible machine layout while maintaining signal integrity.
• Optimized for high-resolution SIN/COS (1 Vpp) and resolver analog signals requiring low noise.
• Double-layer shielding offers >45dB EMI attenuation from 30 MHz to 1 GHz.
• Low capacitance (<80 pF/m) design preserves signal edge fidelity for accurate position feedback.
• Precision 120 Ω impedance matching minimizes signal reflections in differential transmission lines.
• Tightly controlled propagation delay skew ensures synchronous signal arrival across all channels.

Installation & Compatibility

• Compatible with Allen-Bradley Kinetix® and MP-Series drives supporting SIN/COS/resolver feedback.
• Ensure the SpeedTec DIN connector matches the motor's high-resolution encoder port.
• Maintain ≥100mm separation from motor power cables and high-frequency inverters.
• Ground the shield only at the drive end using a 360-degree shield clamp to prevent ground loops.
• Secure the cable with UV-resistant cable ties every 200mm; avoid sharp bends or crushing.
• After installation, verify signal quality using the drive's diagnostic monitoring for noise or errors.

Packaging & Quality Assurance

• Individually coiled and packaged in a protective, sealed polybag with clear part number labeling.
• Each cable undergoes 100% electrical testing for continuity, insulation resistance, and shield integrity.
• International shipping via FedEx, UPS, DHL with full tracking and customs documentation.
• Includes reference to Allen-Bradley publication 2090-IN001 for technical specifications.

Technical FAQs

• What is the main application for this cable? It is used to connect high-resolution SIN/COS or resolver encoders to compatible servo drives for closed-loop control.
• Can this cable be used with incremental encoders? No, it is specifically engineered for analog SIN/COS and resolver signals with different electrical characteristics.
• What is the benefit of the double-layer shielding? It provides superior protection against both high-frequency and low-frequency electromagnetic interference.
• Is the 4-meter length suitable for long runs? For SIN/COS signals, 4 meters is within optimal range; for longer runs, consider signal conditioning or a repeater.
• How do I terminate the flying leads properly? Use ferrules on the individual wires and connect them to the drive's designated feedback input terminals following the drive manual.

For application engineering support or to order the 2090-CFBM7DF-CEAA04, contact our technical team.

Contact: Email sales@nex-auto.com or WhatsApp +86 153 9242 9628.

Partner: NexAuto Technology Limited

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