Foxboro FBMSVH Control Card

Foxboro FBMSVH Control Card

Description

The Foxboro FBMSVH control card is used for closed-loop control systems to control the valve position of pneumatic or hydraulic servos. It accepts input commands in the range of 4-20mA or 0-10VDC. Feedback input can be derived from an LVDT with a 0-10V signal. After processing the DEH command and LVDT feedback voltage using P or P+I regulation, it outputs ±27mA current to drive the servo valve. The module operates with an external ±15V power supply, which can be connected to the respective input terminals.

Features

• Selectable current or voltage input (DEH) with separately adjustable zero point and full-scale range using S2 switch.
• Equipped with an LVDT modulator and demodulator with adjustable amplitude and a driving current of 50mA.
• Can also output a 0-20mA valve position signal (impedance 50Ω).
• Allows for external shutdown contacts and adjustable proportional and integral control loops.

Technical Specifications