1440-SDM02-01RA

Overview of Allen Bradley 1440-SDM02-01RA

The Allen Bradley 1440-SDM02-01RA is a Standard Dynamic Measurement Module, part of the XM-124 family, designed for precise monitoring of dynamic inputs such as vibration, pressure, and strain. It features two input channels and supports a wide range of sensor signals including eddy current probes and accelerometers. This module provides buffered and 4-20mA analog outputs per input channel and digital communication via DeviceNet. It is widely used for predictive maintenance and machine protection by accurately detecting equipment conditions and alerting operators to potential failures. This unit operates reliably within a temperature range of -20 °C to +65 °C and complies with multiple industrial certifications for safety and performance. It is an essential component for industrial automation systems requiring real-time condition monitoring of rotating and critical machinery.

Key Features of Allen Bradley 1440-SDM02-01RA

• Two dynamic input channels for vibration and voltage signals
• Supports eddy current probes, accelerometers, and general voltage sensors
• Buffered and 4-20mA analog outputs for each input channel
• DeviceNet communication protocol for seamless integration with control networks
• One relay output to alert faults or operational status
• Operates between -20 °C and 65 °C with 5g vibration tolerance (10-500 Hz)
• Shock resistance up to 15g operating and 30g non-operating
• Basic insulation voltage rating of 50V between live parts and enclosure
• Compact open-style enclosure with dimensions 97 x 94 x 94 mm
• UL and IECEx certifications, suitable for industrial environments

Technical Specs of 1440-SDM02-01RA

Specification	Details
Input Channels	2 dynamic inputs + 1 tachometer
Output Signals	2 buffered analog, 2 x 4-20mA analog, 1 relay
Supply Voltage	24V DC (21.6 to 26.4V)
Current Consumption	0.2 A max
Operating Temperature	-20 °C to +65 °C
Vibration Resistance	5g at 10-500 Hz
Shock Resistance	15g operating, 30g non-operating
Communication Protocol	DeviceNet
Dimensions (HxWxD)	97 x 94 x 94 mm (3.8 x 3.7 x 3.7 in.)
Certifications	UL Listed, IECEx, ATEX Temperature Code T4

Applications / Use Case

The Allen Bradley 1440-SDM02-01RA is ideal for predictive maintenance and condition monitoring in industrial environments. It is commonly deployed in rotating machinery such as motors, pumps, and compressors to detect vibration anomalies and prevent unexpected failures. The module’s ability to handle various sensor inputs makes it flexible for monitoring pressure, strain, and other dynamic signals critical in process industries. Using DeviceNet communication, it integrates smoothly with automated control systems to provide real-time data, enabling timely diagnostics and maintenance decisions. Through early detection of mechanical faults, it helps reduce downtime and maintenance costs for manufacturing plants, power generation facilities, and heavy machinery operations.

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