Product Overview
The WESTINGHOUSE 5X00241G01 is an 8-channel analog output(AO)terminal module engineered for the OVATION™Distributed Control System(DCS),a platform originally developed by Westinghouse and now fully supported and enhanced by Emerson Automation Solutions following its acquisition of the technology.This module serves as a critical interface between the OVATION controller and field actuators such as control valves,variable frequency drives(VFDs),and damper positioners in power generation and heavy industrial applications.By converting digital setpoints from the controller into precise 4–20 mA current signals,the WESTINGHOUSE 5X00241G01 enables accurate,real-time manipulation of process variables—essential for maintaining combustion stability,steam pressure,feedwater flow,and other key parameters in thermal power plants.
Designed for operation in demanding environments,the WESTINGHOUSE 5X00241G01 features channel-to-channel isolation,robust surge protection,and compliance with stringent EMC standards to ensure signal integrity amid high electrical noise from motors,transformers,and switchgear.Each of its eight outputs is independently configurable via the OVATION engineering workstation,supporting both standard 4–20 mA loops and optional HART®digital communication for advanced device diagnostics and calibration.The module integrates seamlessly into redundant I/O chassis configurations,contributing to system availability in safety-critical applications such as boiler furnace pressure control or turbine bypass systems.As a foundational component of the OVATION I/O architecture,the WESTINGHOUSE 5X00241G01 continues to be specified in new builds,retrofits,and spare parts programs across fossil,nuclear,and combined-cycle facilities worldwide.
Technical Specifications
Parameter Name Parameter Value
Product Model 5X00241G01
Manufacturer Westinghouse→Emerson Automation Solutions
Product Type 8-Channel Analog Output(AO)Terminal Module
Number of Channels 8 independent outputs
Output Signal Type 4–20 mA(sink/source capable,loop-powered)
Load Capability Up to 750Ωper channel(at 24 VDC supply)
Resolution 16-bit
Accuracy±0.1%of full scale(typical at 25°C)
Isolation Channel-to-channel and channel-to-backplane:≥500 Vrms
Communication Interface Proprietary OVATION I/O bus(via terminal base)
Operating Temperature 0°C to+60°C
Certifications CE,UL,CSA;compliant with IEEE 472(surge immunity),IEC 61000-4(EMC)
Main Features and Advantages
Precision Actuation for Critical Loops:The 5X00241G01 delivers laboratory-grade output accuracy(±0.1%F.S.)across all eight channels,ensuring that control valves and dampers respond exactly as commanded by the OVATION controller.This level of fidelity is vital in applications like main steam temperature spray control or condenser hotwell level regulation,where even minor output drift can degrade efficiency or trigger nuisance alarms.
HART Communication Support:Unlike basic AO modules,the 5X00241G01 supports superimposed HART digital signals on its 4–20 mA outputs.This enables plant personnel to perform remote device diagnostics,trim valve positioners,or verify loop integrity without interrupting process operation—reducing maintenance downtime and enhancing predictive capabilities.
Robust Design for Power Plant Environments:Built to withstand the electrical transients and wide temperature swings common in utility control rooms,the 5X00241G01 incorporates conformal-coated PCBs,transient voltage suppression diodes,and reinforced insulation barriers.Its compatibility with redundant I/O chassis allows deployment in“hot standby”configurations,ensuring continuous actuation even if one module fails—critical for safety-related final elements.
Seamless OVATION Integration:The module is auto-detected during I/O configuration in the OVATION Developer Studio,eliminating manual address setting.Engineers can assign engineering units,alarm limits,and fail-safe states(e.g.,“fail low”on loss of power)per channel through intuitive software interfaces.Field wiring connects via a dedicated terminal base(e.g.,5X00241T01),enabling hot-swap replacement without disturbing field cables—a significant advantage during emergency repairs.
Application Field
The 5X00241G01 is extensively deployed in thermal power generation,where precise analog output control is non-negotiable.In coal-fired plants,it modulates primary air dampers,coal feeder speeds,and overfire air ports to maintain optimal combustion.In combined-cycle facilities,the 5X00241G01 controls inlet guide vanes on gas turbines,HRSG attemperator sprays,and condensate booster pump speeds.Nuclear power stations utilize it for feedwater control valve positioning and auxiliary system regulation,often within safety-related divisions requiring high reliability.
Beyond power,the 5X00241G01 serves in industrial energy centers,district heating plants,and large-scale desalination facilities that rely on OVATION for integrated process management.It is particularly valued in applications involving final control elements where signal accuracy directly impacts product quality,emissions compliance,or equipment lifespan.For example,in selective catalytic reduction(SCR)systems,the 5X00241G01 precisely meters ammonia injection flow based on NOx readings—balancing environmental performance with operational cost.Wherever the OVATION DCS orchestrates complex,continuous processes,the 5X00241G01 provides the trusted analog muscle to turn digital decisions into physical action.
Related Products
5X00241T01:Terminal base for 5X00241G01,providing field wiring terminals and mechanical mounting
5X00231G01:16-channel analog input(AI)module,complementary to 5X00241G01 in I/O racks
5X00121G01:16-channel discrete output(DO)module used alongside 5X00241G01 for mixed-signal control
WDPF I/O Modules(Legacy):Pre-OVATION Westinghouse modules;5X00241G01 is part of the modernized OVATION I/O family
Ovation I/O Chassis(e.g.,5X00000C01):Redundant or simplex rack that houses 5X00241G01 and other I/O modules
5X00242G01:Potential upgraded or variant AO module with enhanced diagnostics or higher channel density
Installation and Maintenance
Pre-installation preparation:Prior to installing the 5X00241G01,confirm compatibility with the target OVATION I/O chassis and ensure the correct terminal base(5X00241T01)is securely mounted on the DIN rail.Verify that the 24 VDC loop power supply for field devices is properly sized and isolated.Use shielded twisted-pair cable for all 4–20 mA outputs,grounding the shield at the controller end only to avoid ground loops.Confirm that all field actuators(e.g.,I/P converters,positioners)are rated for 4–20 mA input and compatible with HART if enabled.
Maintenance recommendations:The 5X00241G01 should be functionally tested during scheduled outages using a precision loop calibrator to validate output accuracy at 0%,50%,and 100%span.Inspect terminal screws for proper torque(typically 0.5 N·m)and signs of oxidation.If a channel exhibits drift or fails to reach full scale,check the field device first before suspecting the module.In redundant configurations,perform switchover tests to ensure seamless failover.Always de-energize the I/O chassis before removal to prevent backplane damage.Store spare 5X00241G01 units in anti-static packaging in a dry,temperature-controlled environment.
Product Guarantee
Every 5X00241G01 is sourced from Emerson-authorized channels or rigorously refurbished to meet original Westinghouse/Emerson specifications.Each unit undergoes full functional validation,including 8-channel output sweep,HART communication test,and integration verification with OVATION I/O infrastructure.We provide a comprehensive 12-month warranty against defects in materials and workmanship,backed by direct access to senior OVATION system engineers for configuration,troubleshooting,and lifecycle support.Our commitment ensures that your plant’s critical analog output layer remains dependable,accurate,and ready to perform—because in power generation,there is no room for compromise when it comes to control signal integrity.
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