Command Output:​ ±10 VDC to servo valve driver

Feedback Inputs:​ 8 LVDT/RVDT (excitation 3–10 Vrms selectable)

Resolution:​ 16‑bit ADC/DAC

Isolation:​ 2000 VDC field‑to‑backplane

Network:​ Dual 100 Mbps IONet, auto‑reconfiguring

Power:​ 24 VDC from I/O pack bus, ≈12 W

Temp:​ −40 to +70 °C

Closed‑loop position control with auto null

LVDT open‑wire detection

Field power loss fails to safe valve position

Working Principle:​ Controller sends digital position demand → pack compares with demodulated LVDT feedback → outputs corrected ±10 V error to moog/woodward servo valve.

Structure:​ Sealed I/O pack with terminal block, two RJ45 IONet, DIN clip.

Installation:​ Mount on terminal board (e.g., IS200TSVOH), shield LVDT cable independently, bond shield to pack ground.

Precautions:​ Incorrect LVDT phase wiring causes sustained oscillation; calibrate null before turbine roll.