Turbine Supervisory Instrumentation Modules

Aug. 1, 2006
Designed to fulfill the requirements of Turbine Supervisory Instrumentation (TSI) series of measurements established by the ISA, the Allen-Bradley XM 121A Absolute Shaft Module and XM 442 Voted Electronic Overspeed Detection System (EODS) Relay Module provide cost-effective monitoring and protection of critical plant-floor assets, says the vendor.

The modules are a scalable solution that can be easily integrated into a plant’s control and information system. They are designed to meet the unique needs of applications requiring absolute shaft measurements and applications requiring redundant overspeed protection. The XM-121A measures a turbine shaft’s vibratory motion relative to free space, which is an important diagnostic metric on some large steam turbines. The XM-442 provides four high-power relays—three that serve as redundant shutdown relays, and one that serves as the alarm relay, and a redundant logic circuit that allow the XM-442 module to operate correctly even in the presence of a single internal circuit fault.

Sponsored Recommendations

Rock Quarry Implements Ignition to Improve Visibility, Safety & Decision-Making

George Reed, with the help of Factory Technologies, was looking to further automate the processes at its quarries and make Ignition an organization-wide standard.

Water Infrastructure Company Replaces Point-To-Point VPN With MQTT

Goodnight Midstream chose Ignition because it could fulfill several requirements: data mining and business intelligence work on the system backend; powerful Linux-based edge deployments...

The Purdue Model And Ignition

In the automation world, the Purdue Model (also known as the Purdue reference model, Purdue network model, ISA 95, or the Automation Pyramid) is a well-known architectural framework...

Creating A Digital Transformation Roadmap Using A Unified Namespace

Digital Transformation has become one of the most popular buzzwords in the automation industry, often used to describe any digital improvements to industrial technology. But what...