Emerson 1C31194G01 1C31194G02 is a valve positioner electronic module for Ovation DCS system, supplying 23.75VAC peak-to-peak, 3kHz excitation signal for LVDT position sensors. It receives valve position feedback signals and performs closed-loop control calculation to drive servo coils of hydraulic or pneumatic valves, realizing high-precision valve stroke adjustment. Equipped with built-in fault diagnosis function, it can monitor loop abnormality in real time, widely used in turbine and boiler valve control loops in power plants.

Emerson 1C31194G03 belongs to Ovation valve positioner electronic card series, optimized LVDT drive version for different valve actuator specifications. It captures real-time valve position from LVDT transducer and compares with control setpoint to output regulating signals for servo valves, supporting continuous closed-loop positioning control. With strong electromagnetic shielding and self-diagnosis capability, it guarantees stable valve regulation under high vibration and high temperature working conditions of thermal power units.

Emerson 5X00226G02 is an Ovation DCS I/O interface module, serving as the signal bridge between field instruments and Ovation controller. It supports multi-channel analog and discrete signal transmission, with high voltage isolation and excellent noise suppression performance. The modular hot-swap design allows replacement without system shutdown, responsible for collecting process variables and transmitting control commands in power, chemical and petrochemical continuous production systems.

Emerson 5X00481G01 is a digital input module of Emerson Ovation distributed control system, used to acquire 24VDC discrete on/off signals from field limit switches, relays and equipment status contacts. It features channel isolation, signal filtering and comprehensive channel fault detection, converting field contact status into digital data and uploading to DCS controller. Reliable and compact, it is commonly applied for equipment status monitoring and interlock logic in large-scale process control projects.