Allen-Bradley 1440 Series Modules – 1440-RMA00-04RC

Technical Dossier

Product Details And Specifications

Allen-Bradley 1440 Series Technical Notes

The Allen-Bradley 1440 Dynamix Series is Rockwell Automation's dedicated platform for continuous online vibration monitoring in heavy industrial environments. Deployed extensively in petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and rotating machinery-intensive facilities, the 1440 Series provides real-time machinery health data integrated directly into the PlantPAx DCS and ControlLogix/CompactLogix ecosystems. Its modular architecture allows plant engineers to configure multi-channel vibration, speed, temperature, and process variable acquisition within a single DIN-rail or panel-mount chassis, eliminating the need for standalone condition monitoring hardware. The series is certified for use in Class I Division 2 hazardous locations and complies with API 670 machinery protection standards, making it the reference platform for turbomachinery protection in critical process industries worldwide.

The Evolution of 1440 Series Architecture

The 1440 Dynamix Series was introduced by Rockwell Automation in the mid-2000s as a successor to standalone vibration analyzers, designed to bridge the gap between traditional machinery protection systems (such as Bently Nevada 3500) and programmable automation controllers. The first-generation modules communicated via DeviceNet, enabling integration with legacy SLC 500 and PLC-5 platforms. As ControlLogix became the dominant Rockwell architecture, the 1440 Series transitioned to EtherNet/IP as its primary backplane and network protocol, enabling deterministic data transfer rates suitable for API 670-compliant overspeed and high-vibration trip functions.

The second-generation architecture introduced the Dynamix 1444 Series for higher-channel-density applications, but the 1440 platform remained the standard for distributed, per-machine monitoring nodes. Compatibility challenges arise when integrating 1440 modules into Studio 5000 Logix Designer projects originally configured under RSLogix 5000 v16–v18; firmware alignment between the module and the controller is mandatory. Many 1440 modules have entered the mature/end-of-life phase, with Rockwell Automation issuing Product Discontinuation Notices (PDNs) for select catalog numbers. Long-term maintenance support, including refurbished and tested spare units, is therefore critical for plants operating on 20–30 year asset lifecycles.

1440 Series Full Catalog & Functionalities (SKU List)

The following catalog numbers represent verified, commonly deployed 1440 Series modules. SKUs are organized by functional category:

Relay Output & Monitoring Modules

• 1440-RMA00-04RC: 4-channel relay output module, normally closed contacts, DIN-rail mount, EtherNet/IP
• 1440-RMA00-04RO: 4-channel relay output module, normally open contacts, panel or DIN-rail mount
• 1440-RMA00-08RC: 8-channel relay output module, normally closed, expanded trip relay capacity

Vibration Input & Accelerometer Modules

• 1440-VSE00-01RA: Single-channel vibration sensor interface, 4–20 mA output, IEPE accelerometer input
• 1440-VSE00-04RA: 4-channel vibration sensor interface module, IEPE input, EtherNet/IP
• 1440-VSE02-01RA: Single-channel vibration module with tachometer input, speed and phase measurement
• 1440-VSE04-04RA: 4-channel vibration module with dual tachometer inputs, waveform capture
• 1440-VLF02-01RA: Low-frequency vibration module, 0.5–1000 Hz, for slow-speed machinery monitoring

Speed & Tachometer Modules

• 1440-SPD00-01RA: Single-channel speed/tachometer input module, proximity probe compatible
• 1440-SPD02-01RA: Dual-channel speed module with overspeed detection, API 670 compliant

Process Variable & Temperature Modules

• 1440-TPS00-01RA: Single-channel process variable input, 4–20 mA, thermocouple/RTD compatible
• 1440-TPS02-04RA: 4-channel temperature/process input module, multi-sensor type support

Communication & Gateway Modules

• 1440-ACNR15-04RA: EtherNet/IP communication adapter, 100 Mbps, dual-port, DLR capable
• 1440-ACNR15-08RA: EtherNet/IP adapter, 8-slot chassis support, linear/ring topology

Power Supply Modules

• 1440-PS001-24RA: 24 VDC power supply module, 5 A output, DIN-rail mount, redundancy capable
• 1440-PS002-24RA: Redundant 24 VDC power supply module, hot-swap, for critical monitoring nodes

Sourcing Hard-to-Find & Obsolete 1440 Series Parts

A significant portion of the 1440 Series catalog has been issued Product Discontinuation Notices by Rockwell Automation, with last-time-buy windows now closed for several catalog numbers including select VSE and RMA variants. Plants operating DCS and machinery protection systems built on the 1440 platform face a sourcing gap that standard distribution channels cannot fill.

Quality Control for the 1440 Series Range

The 1440 Series modules employ a proprietary backplane communication protocol over EtherNet/IP with time-stamped data acquisition. Standard bench testing is insufficient to validate module integrity. DriveKNMS applies a structured test protocol specific to the 1440 architecture:

• Backplane Communication Verification: Each module is seated in a live 1440-compatible chassis and polled via Studio 5000 Logix Designer to confirm identity, firmware version, and fault-free status register.
• Channel-Level Signal Injection: For VSE vibration modules, calibrated IEPE signal sources are applied to each input channel. Output values are compared against factory calibration tolerances (±1% full scale).
• Relay Output Continuity Test: For RMA relay modules (including 1440-RMA00-04RC), each relay contact is cycled under rated load. Contact resistance is measured and logged. NC/NO state is verified against commanded output.
• EtherNet/IP Conformance Check: Network identity objects, electronic data sheet (EDS) registration, and cyclic I/O connection establishment are validated against Rockwell's published conformance requirements.
• Thermal Burn-In: Units are operated at 45°C ambient for 48 hours to screen for early-life component failures prior to shipment.