Overview
The Allen-Bradley 2090-U3BB-DM44 is a control interface breakout board kit for Ultra 3000 CN1 servo drives. This drive-mounted assembly provides discrete wiring terminations for signals on the CN1 I/O connector, simplifying field installation and configuration of servo motion control systems. Although discontinued as of December 31, 2022, existing units remain valuable for maintenance, repair, and system troubleshooting.
Key Features
- 44-pin male D-sub connector for CN1 interface compatibility
- Complete assembly kit including DIN rail terminal block, connecting cable, and mounting hardware
- Labeled signal terminals (1–44) plus +X and –X auxiliary power terminals
- Screw terminal design supporting wire sizes 30–16 AWG (0.06–1.31 mm²)
- Cover alignment holes and cable shield termination pad for organized wiring
- Requires external 5.2 V DC auxiliary power source
Technical Specifications
- Connector Type: 44-pin male D-shell (D-sub)
- Application: Ultra 3000 servo drives (CN1 control interface)
- Auxiliary Power: 5.2 V DC external supply (required)
- Terminal Wire Size: 30–16 AWG (0.06–1.31 mm²)
- Maximum Wire Diameter: 12.7 mm (0.5 inches)
- Wire Strip Length: 25–63 mm (1–2.5 inches, factory recommended)
- Terminal Screw Torque: 0.25 N-m (2.2 in-lbs)
- Mounting Dimensions: 65.4 × 50.9 × 21.8 mm (2.6 × 2.0 × 0.9 inches)
- Weight: 0.31 lb (0.14 kg)
- Storage Temperature Range: –55 to +85 °C
- Certifications: C-TICK, KC
- Country of Origin: USA
Typical Applications
The Allen-Bradley 2090-U3BB-DM44 is used in industrial servo motion control systems where clean, organized I/O signal termination is required:
- Ultra 3000 drive control signal interfacing
- Discrete digital input/output signal termination
- System integration and retrofit projects
- Maintenance and troubleshooting of existing Ultra 3000 installations
- Custom motion control panel design and build
Compatibility & Replacements
Compatible With
- Allen-Bradley Ultra 3000 2098-DSD-005 servo drive
- Allen-Bradley Ultra 3000 2098-DSD-010 servo drive
- Allen-Bradley Ultra 3000 2098-DSD-020 servo drive
- Ultra 3000 CN1 control interface connector
- Kinetix 2000 drives (IOD/AF connector)
Replaces / Drop-In Replacement For
The 2090-U3BB-DM44 is a discontinued product with no planned Rockwell Automation replacement. Verify compatibility with your system integrator or Rockwell Automation support before ordering as a replacement for legacy systems.
Works With
- Allen-Bradley Studio 5000 (motion programming and configuration)
- Rockwell Automation EtherNet/IP networks
- IEC 61131-3 compliant control systems
- DIN rail mounting infrastructure (via included terminal block)
- External 5.2 V DC auxiliary power supplies
