Allen-Bradley 1440 Modules | AB 1440-TUN06-00RE

Technical Dossier

Product Details And Specifications

Allen-Bradley 1440 Series: Comprehensive Module Range and Technical Overview

The Allen-Bradley (Rockwell Automation) 1440 Series is a dedicated line of Turbine Supervisory Instrumentation (TSI) modules engineered for continuous, high-reliability monitoring of rotating machinery in heavy industrial environments. Deployed across petrochemical refineries, nuclear power stations, offshore platforms, and large-scale chemical processing facilities, the 1440 Series occupies a critical position in plant asset protection strategies. These modules interface directly with proximity probes, velocity transducers, and thermocouple/RTD sensors to deliver real-time vibration, speed, temperature, and position data to the plant DCS or safety instrumented system (SIS). The series is fully compatible with the Rockwell Automation Integrated Architecture and communicates natively over EtherNet/IP, enabling seamless integration with ControlLogix and CompactLogix platforms. Installed base spans multiple decades, with active deployments in facilities operating under API 670 machinery protection standards.

The Evolution of 1440 Series Architecture

The 1440 Series was introduced as Rockwell Automation's response to the need for a standards-compliant, network-integrated TSI platform. Early revisions (suffix -00RA, -01RA) established the core hardware architecture: isolated analog front-ends, onboard signal conditioning, and a backplane communication bus compatible with the 1440 chassis. These initial variants supported basic vibration and speed measurement with local relay outputs for alarm and trip functions.

Subsequent hardware revisions (-01RB, -04RB, -06RB) introduced enhanced firmware, improved EMI immunity, and expanded channel density. The communication architecture evolved from proprietary backplane protocols to full EtherNet/IP support via the 1440-ENBTA gateway modules, enabling the 1440 Series to participate in plant-wide data historian and condition monitoring architectures. Later variants incorporated onboard diagnostics, self-test routines, and improved transient capture buffers for machinery event recording.

The series is now in a mature/sustaining lifecycle phase. Rockwell Automation continues to provide firmware updates and spare parts support, but new installations increasingly migrate toward the Dynamix 1444 platform. For facilities committed to the 1440 architecture, long-term maintenance support — including refurbished exchange units and obsolete module sourcing — remains commercially available through authorized distributors and specialist suppliers such as DriveKNMS.

1440 Series Full Catalog & Functionalities (SKU List)

Temperature Measurement Modules

• 1440-TUN06-00RE: 6-channel universal temperature input module; supports thermocouple and RTD types; EtherNet/IP backplane communication.
• 1440-TUN06-00RA: Early revision 6-channel temperature module; identical channel count; legacy firmware baseline.

Vibration Monitoring Modules

• 1440-VDRS02-01RA: 2-channel dynamic measurement module; radial vibration and position; proximity probe input; API 670 compliant.
• 1440-VDRS02-01RB: Revised hardware of VDRS02; improved noise floor; enhanced transient capture buffer.
• 1440-VSE02-01RA: 2-channel seismic/velocity input module; accepts velocity transducer signals; configurable alarm/trip setpoints.
• 1440-VSE02-01RB: Updated revision of VSE02; extended operating temperature range; improved EMI shielding.

Speed & Tachometer Modules

• 1440-TACH00-00RA: Single-channel tachometer input module; accepts gear tooth or proximity probe signals; configurable PPR settings.
• 1440-TACH00-00RB: Revised tachometer module; enhanced signal conditioning; supports higher pulse frequencies for high-speed machinery.

Static Data Measurement Modules

• 1440-SDM02-01RA: 2-channel static data module; DC position and eccentricity measurement; differential expansion monitoring.
• 1440-SDM02-01RB: Updated SDM02 revision; improved linearity; extended input voltage range.

Relay Expansion Modules

• 1440-REX00-04RA: 4-channel relay expansion module; SPDT relay outputs; configurable for alarm or trip duty.
• 1440-REX00-04RB: Revised relay expansion module; enhanced contact rating; improved relay isolation.

Keyphasor Modules

• 1440-KEYS00-06RA: 6-channel Keyphasor input module; phase reference signal conditioning; supports multiple shaft reference inputs.
• 1440-KEYS00-06RB: Updated Keyphasor module; improved signal threshold detection; wider input voltage range.

Communication & Gateway Modules

• 1440-ENBTA-00RA: EtherNet/IP communication bridge; connects 1440 chassis to plant Ethernet network; supports CIP messaging.
• 1440-ENBTA-00RB: Revised EtherNet/IP bridge; dual-port switch topology support; improved network diagnostics.

Sourcing Hard-to-Find & Obsolete 1440 Series Parts

As the 1440 Series transitions through its sustaining lifecycle, procurement of specific hardware revisions — particularly early -00RA and -01RA suffix variants — presents increasing challenges through standard distribution channels. DriveKNMS maintains a dedicated inventory of 1440 Series modules sourced from decommissioned plant assets, authorized surplus channels, and factory-refurbished stock. Our procurement team actively tracks global availability of discontinued 1440 variants to support facilities operating under long-term maintenance contracts or regulatory constraints that prevent platform migration. For critical spare requirements, DriveKNMS offers cross-reference analysis to identify functionally equivalent replacement modules where direct substitution is not possible, and can coordinate emergency shipment to minimize unplanned downtime exposure.

Quality Control for the 1440 Series Range

The 1440 Series employs a complex backplane communication architecture and precision analog front-end circuitry that requires specialized test procedures beyond standard functional verification. DriveKNMS applies a multi-stage quality control protocol to all 1440 modules prior to shipment. Each unit undergoes visual inspection for backplane connector integrity, capacitor condition, and relay contact wear. Functional testing is performed using a dedicated 1440 chassis test bench with live EtherNet/IP communication verification, channel-by-channel signal injection at rated input levels, and relay output actuation under load. Firmware revision is verified and documented. Modules exhibiting marginal analog performance — even within datasheet limits — are flagged for further evaluation. All test results are recorded and available upon request with each shipment.