1440-VST02-01RA

Overview

1440-VST02-01RA is an Allen-Bradley XM-120 eccentricity monitoring module with 2 input channels, onboard relay, and DeviceNet/serial reset options for industrial condition monitoring.

Identification

• Product ID: 1440-VST02-01RA

• Model: XM-120 Eccentricity Module

• Type: Dynamic Measurement Module

• Manufacturer: Allen-Bradley

Inputs

• Channels: 2

• Supported signals: Eddy current transducer signals

• Transducer power: Constant voltage +24 VDC (tachometer may be powered or configured as voltage input)

• Voltage range: Selectable 0 to ±20 V (min), 40 V max peak-to-peak

• Sensitivity: User configurable in software

• Input impedance: >100 kΩ

Relays

• On-board relay: 1 DPDT (2 Form C), two sets of contacts

• Expansion: 4 additional relays via XM-441 Expansion Relay, or 4 virtual relays via XM-440 Master Relay

• Relay ratings:

  • Max voltage: 120 VDC, 125 VAC

  • Max current: 3.5 A (derates to 2 A at 65 °C)

  • Max power: 60 W, 62.5 VA

  • Agency ratings: 120 VAC @ 0.5 A, 110 VDC @ 0.3 A, 30 VDC @ 1.0 A

• Modes: Failsafe (normally energized) or non-failsafe (normally de-energized)

• Latching: Supported (latching or non-latching)

• Time delay: 0–25.5 s, adjustable in 100 ms increments

• Voting logic: Single or paired “And/Or” logic applied to alarms

• Reset options: Local switch, remote switch via terminal base, digital reset via serial or DeviceNet

Alarm Status

• States: Normal, Alert, Danger, Disarm, Transducer fault, Module fault, Tacho fault

Power & Consumption

• Supply voltage: +21.6 to +26.4 VDC

• Current: Max 300 mA, typical 175 mA

• Heat production: Max 7 W (24 BTU/h), typical 4 W (14 BTU/h)

• Transducer supply: Isolated 24 VDC, user configurable with wiring

Physical Data

• Form factor: Compact module for XM series systems

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