The Allen-Bradley 1440-SDM02-01RA Standard Dynamic Measurement Module, also known as the XM-124, is a versatile two-channel monitor designed for dynamic measurements such as vibration, pressure, and strain, as well as static measurements like thrust and eccentricity.
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Product Type | Standard Dynamic Measurement Module |
| Part Number | 1440-SDM02-01RA |
| Inputs | Two dynamic channels; one tachometer input |
| Voltage Ranges | Input: -20…0V DC, -10…10V DC, 0…20V DC; Supply: 24V DC |
| Input Impedance | >100 kΩ |
| Communication Types | DeviceNet, RS-232 |
| XM Bus Communication Rate | 125 Kbps, 250 Kbps, or 500 Kbps (autobaud) |
| Thermal Dissipation | 8.7 W maximum |
| Field Power | 24V DC, 350 mA |
| Status Indicator | Module, Network, Channel 1, Channel 2, Tachometer, Setpoint Multiplier, Virtual Relay |
| Input Power | 24V DC, 350 mA |
The Allen-Bradley 1440-SDM02-01RA Standard Dynamic Measurement Module (XM-124) is a comprehensive solution for monitoring and analyzing dynamic parameters in industrial machinery. It supports two dynamic input channels capable of processing signals from various transducers, including eddy current probes, accelerometers, and velocity sensors. Additionally, it features a tachometer input for speed measurements, accommodating a range of 1 to 1,200,000 rpm.
The module offers flexible voltage input ranges of -20…0V DC, -10…10V DC, and 0…20V DC, with an input impedance exceeding 100 kΩ, ensuring compatibility with diverse sensor outputs. Communication is facilitated via DeviceNet and RS-232 interfaces, allowing seamless integration into existing control systems. The XM bus supports autobaud rates of 125 Kbps, 250 Kbps, or 500 Kbps, enhancing adaptability to various network configurations.
Operating on a 24V DC power supply with a maximum current draw of 350 mA, the XM-124 module has a thermal dissipation of up to 8.7 W. It is equipped with multiple status indicators, including Module, Network, Channel 1, Channel 2, Tachometer, Setpoint Multiplier, and Virtual Relay, providing real-time visual feedback on operational status.
Designed for versatility, the XM-124 module is suitable for monitoring a wide array of rotating machinery, such as turbines, motors, pumps, and compressors. Its ability to perform both dynamic and static measurements makes it an essential component in predictive maintenance and machinery protection strategies, contributing to enhanced operational efficiency and reduced downtime.