Technical Specifications Multi‑channel valve position signal input and buffer output interfaces, Mark V back‑plane bus connector, auxiliary DC power supplied by chassis back‑plane. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, relative humidity 5%‑95% non‑condensing. Conformal coating PCB protection. Mark V plug‑in form factor.
Functional Features Acquires multi‑channel valve position feedback signals coming from turbine field actuators. Executes signal buffering, filtering and amplitude conditioning for position signals. Transmits valve‑position sampling data to main CPU via Mark V back‑plane bus. Generates buffered valve driving control signals. Provides hardware over‑voltage protection for position signal channels. Supports valve‑position channel fault self‑diagnosis.
Performance Parameters High‑precision valve‑position signal conditioning accuracy, low signal transmission delay, stable buffer signal driving performance, reliable channel fault‑detection response.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Signal buffer and conditioning chips, filter components, surge protection devices. Gold‑plated Mark V back‑plane edge connector. Front metal panel equipped with status LED indicators and fixing screws. Conformal protective coating layer.
Structural Characteristics Standard Mark V chassis plug‑in board dimension. Rear gold‑plated edge connector interfaces with Mark V back‑plane bus. Front metal panel mounts status LED indicators and fastening hardware. PCB layout isolates valve‑position analog signal tracks and digital logic tracks to suppress electromagnetic crosstalk.
Working Principle Board draws operating power from Mark V chassis back‑plane. Valve position feedback signals from field actuators enter input terminals and pass through buffer‑conditioning circuit. On‑board monitoring circuit detects abnormal status of each position signal channel.
Installation Requirements Insert DS200VPBLG1A into corresponding chassis slot, tighten front‑panel fixing screws. Restore chassis power supply, execute system power‑on self‑test and valve‑position signal loop calibration verification test.
Usage Notes Prevent mechanical scratch damage to conformal coating protective layer. Only install inside compatible GE Mark V turbine control chassis.
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