Emerson 1C31194G03 Ovation Valve Positioner Electronic Module

Technical Specifications

Model:1C31194G03

Brand:Emerson

Product Type:Valve Positioner Electronic Module

Applicable System:Emerson Ovation distributed control system, Ovation 3.5 and above version thermal power plant DCS control cabinet

Matching Module:Ovation valve positioner personality module

LVDT excitation:Adaptive LVDT drive signal for servo valve position feedback

Backplane power:24VDC from Ovation I/O base

Isolation:1000VAC field‑to‑backplane galvanic isolation

Installation:Plug‑in install on Ovation I/O base, cooperate with valve positioner personality module

Common Revision:G03 hardware revised version

Status Indicator:On‑board LED for power, channel status and module fault indication

Built‑in Function:Servo‑valve coil drive, LVDT position signal processing, closed‑loop position regulation, loop fault diagnosis, surge interference suppression, cooperate with matched personality module to complete high‑precision control of steam turbine electro‑hydraulic servo valves

Working Temperature:0℃ ~ +60℃

Storage Temperature:‑40℃ ~ +85℃

Protection Class:IP20

Weight:0.42kg

Product Brief:

1C31194G03 is Emerson Ovation upgraded valve positioner electronic module G03 hardware revision, designed for Ovation 3.5 and higher system versions, must work together with corresponding valve positioner personality module.

It is plugged onto matched I/O base, processes LVDT position feedback signal and outputs drive signal for servo‑valve coil, realizes high‑precision closed‑loop position adjustment for steam turbine electro‑hydraulic control valves.

Compared with G01 and G02 versions, it optimizes internal signal processing logic, improves loop response speed and fault diagnosis capability, widely used for steam turbine governing system in thermal‑power‑plant.

1000VAC galvanic isolation separates field actuator side from DCS logic backplane, suppresses ground‑loop interference and transient surge damage.

Built‑in LED indicators help technicians quickly locate channel fault and module abnormality.

Supports hot‑swap operation, can be replaced online without system shutdown for convenient site maintenance.

No extra software configuration required after correct physical installation, system automatically identifies matched personality hardware.

This is EOL discontinued spare part widely used for maintenance and renovation of thermal power plant Ovation DCS system.

Please confirm matching personality module model and Ovation system version before purchase.

Strict ESD anti‑static protection shall be followed during installation and replacement.