Foxboro FBMSVH I/A‑Series Servo Valve Control Module

Foxboro FBMSVH is a high‑precision closed‑loop servo control module for Foxboro I/A‑Series DCS system. It outputs drive command current for electro‑hydraulic servo valves, meanwhile collects position feedback signal from LVDT displacement sensor, realizing high‑accuracy closed‑loop position adjustment for hydraulic actuators.

This module requires external ±15VDC power supply, equipped with status LED indicators for signal diagnosis. It adopts special rack slot installation, not compatible with FBM200 series hardware base. Widely used as replacement spare parts for metallurgy, power plant and hydraulic test‑bench DCS cabinet maintenance and retrofit projects.

Main Specifications

• Brand: Foxboro (Schneider)
• Model: FBMSVH
• Product Type: Servo Valve Closed‑Loop Control Module
• Applicable System: Foxboro I/A‑Series DCS
• Power Supply: External ±15 VDC power input
• Feedback Interface: LVDT displacement signal demodulation input
• Output: Servo valve driving current output
• Installation: Dedicated I/A‑Series rack slot mounting
• Diagnosis: LED indicators for channel and module status
• Operating Temperature Range: 0°C ~ +60°C

Core Functions

• Output adjustable driving current to drive electro‑hydraulic servo valve for hydraulic actuator control
• Demodulate and process LVDT position feedback signal for closed‑loop position regulation
• Realize high‑precision position closed‑loop control between DCS control logic and hydraulic actuator
• Front‑panel LED indicators display module power, signal and channel fault status information
• Communicate with I/A‑Series DCS controller via internal rack backplane bus
• Support gain and bias parameter adjustment to match different servo valve and LVDT devices
• Special slot plug‑in structure for installation inside I/A‑Series DCS rack cabinet
• Built‑in hardware self‑diagnosis detects signal abnormality and circuit fault condition
• Convert DCS setpoint command into actual hydraulic mechanical displacement output
• Provide reliable high‑precision hydraulic servo control solution for process automation system

Application Scenarios

• Metallurgical plant rolling mill hydraulic servo control I/A‑Series DCS cabinets
• Power plant steam turbine hydraulic actuator position closed‑loop control systems
• Hydraulic test‑bench and large‑scale test equipment servo control application projects
• Petrochemical plant heavy‑duty hydraulic actuator precise position adjustment control racks
• Paper‑making industry large‑equipment hydraulic servo drive automation stations
• Industrial equipment renovation, servo module replacement and DCS system upgrade projects
• I/A‑Series DCS rack maintenance and spare‑parts backup for legacy process facilities
• Foxboro DCS spare‑parts inventory and on‑site automation cabinet maintenance supporting projects