Emerson 1C31194G01 Ovation DCS valve positioner electronic module, converts controller commands to analog drive signals for modulating valves, critical spare for boiler and turbine closed-loop control systems.

Product Overview

• Part No: 1C31194G01
• Brand: EMERSON / Westinghouse Ovation

• Category: Valve Positioner Electronic Module 1C31194G01 is a dedicated valve positioner electronic module designed for Emerson Ovation distributed control system. It receives digital setpoint commands from Ovation controllers and converts signals into precise analog outputs to drive field modulating valve positioners. The module supports closed-loop position feedback processing to achieve accurate valve stroke regulation for flow, pressure and temperature control loops. Built-in signal isolation suppresses field electromagnetic interference. Hot-swap capability enables online replacement without system shutdown. Front panel LED indicators display module power status, communication health and fault alarms to facilitate fast on-site troubleshooting. It is widely adopted as maintenance spare for modulating control circuits in thermal power plants and combined-cycle power stations.

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Core Features

• Specialized for continuous modulating control of pneumatic and hydraulic valves
• Receives digital commands and outputs proportional analog drive signals to valve positioners
• Supports valve position feedback signal acquisition for closed-loop positioning control
• High positioning accuracy with fine resolution for stable process regulation
• Galvanic isolation between control backplane and field signal circuits
• Hot-swap supported for online maintenance without system interruption
• Comprehensive hardware self-diagnosis covering communication and signal faults
• Front panel LED indicators for intuitive module status monitoring
• Standard plug-in design compatible with Ovation I/O rack base assembly

• Industrial-grade hardware conforming to strict EMC requirements for power station environments

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Technical Specifications

• Input Command: Digital data via Ovation I/O backplane
• Output Signal: 0–10 VDC analog signal for valve positioner driving
• Positioning Accuracy: ±0.25% of full scale
• Resolution: 0.1% of full scale
• Power Supply: Powered via Ovation rack backplane
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Mounting: Ovation standard I/O rack slot installation

• Protection Class: IP20 when installed inside control cabinet

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Compatibility & Application

• Fully compatible with Emerson Ovation DCS racks, controllers and matching base assemblies
• Widely deployed in thermal power plants, combined-cycle power stations and petrochemical industries
• Applied for precise modulation of boiler feedwater valves, steam control valves, fuel and air regulating valves