1440-SPD02-01RB XM Series XM-220 Dual Speed Measurement Module | Allen-Bradley

Product Overview

The Allen-Bradley 1440-SPD02-01RB functions as an XM-220 Dual Speed Measurement Module within the XM series machine condition monitoring framework. This intelligent hardware unit monitors, calculates, and reports machine rotational speeds, accelerations, and direction parameters by processing high-frequency pulses from industrial tachometers or proximity probes. We supply this critical rotating machinery asset-protection component exclusively in 100% brand new, original factory condition to ensure microsecond-level trigger responsiveness, eliminate input pulse attenuation, and prevent unexpected machine trips on critical power generation and turbine lines.

Technical Specifications

Engineering Advantages

• Executes Sub-Millisecond Over-Speed Trips: The onboard dual-channel processing microchip reads up to two independent tachometer pulses simultaneously. This internal calculation speed enables the module to detect critical over-speed thresholds or sudden shaft deceleration instantly, triggering local onboard relays to trip the machinery before mechanical catastrophic failure occurs.

• Filters High-Frequency Electromagnetic Noise: The differential tachometer input front-end rejects intense common-mode noise and electromagnetic interference (EMI) originating from nearby heavy generator fields or high-voltage lines. This signal cleansing prevents false pulse counts and ensures stable speed tracking even during sudden machine load fluctuations.

• Compresses Footprint inside Crowded Enclosures: The ultra-lightweight 0.38 lbs structural module body snaps cleanly into a dedicated, space-saving terminal base unit. This split-component layout separates the field-wiring base from the processing electronics, maximizing vertical workspace inside compact junction boxes near the machine train.

• Simplifies Modular Hot-Swap Field Maintenance: The plug-in architecture allows maintenance technicians to replace the processing module without disconnecting any field sensor wires from the terminal block base. This slide-and-lock configuration cuts down-time and eliminates accidental wire-swapping errors during system upgrades.

FAQs

• What type of speed sensors interface directly with the 1440-SPD02-01RB inputs?

  The XM-220 module accepts signal pulses from standard passive magnetic pickups, active eddy-current proximity probes, and TTL-level digital tachometers. You must adjust the internal software trigger thresholds and pulse-per-revolution (PPR) configuration variables to align with your specific hardware sensor selection.

• Is this speed measurement card a surplus item or an authentic factory-new piece?

  We guarantee this product is 100% brand new, factory-original, and completely unused component stock. It ships directly in its original manufacturer-branded box with protective anti-static framing, unmarred connection blades, and matching factory serialization barcodes fully intact.

• Can this module run as a standalone machine protection device without a master PLC?

  Yes. The 1440-SPD02-01RB houses its own local configuration registers and processing engine. While it integrates seamlessly with Allen-Bradley processors via DeviceNet or DeviceNet-to-Ethernet gateways, it executes speed logic loops, monitors parameters, and drives integrated hardware alarm contacts completely independently.