Technical Specifications Multi‑channel DC signal input 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 chassis plug‑in mechanical structure.
Functional Features Receives multi‑channel DC analog feedback signals from field‑side transducers and power‑unit equipment. Executes signal filtering and amplitude conditioning processing. Forwards sampling data to main CPU board via Mark V chassis back‑plane bus. Provides hardware over‑voltage protection for each input channel. Supports channel‑level hardware self‑diagnosis function.
Application Scenarios LC‑revision spare replacement board for GE Mark V gas and steam turbine control systems, used for power‑plant turbine‑control‑equipment overhaul and maintenance work.
Performance Parameters High‑accuracy DC signal sampling performance, low long‑term signal drift, effective noise‑suppression capability, reliable channel‑fault‑detection response.
Material Composition Multilayer glass‑fiber epoxy printed circuit board with LC‑revision component configuration. DC signal filter and conditioning circuit components, over‑voltage protection devices. Gold‑plated Mark V back‑plane edge connector. Front‑panel metal bracket with status LED indicators. 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 fixing screws. PCB layout separates analog‑signal region and digital‑logic region to reduce electromagnetic interference.
Working Principle External DC feedback signals arrive at input terminals and pass through filter and conditioning circuit. Adjusted sampling data is transmitted through back‑plane bus to main CPU board for turbine‑control‑logic calculation. On‑board hardware circuit monitors input‑channel abnormal condition.
Installation Requirements Insert DS200DCFBG1BLC board into corresponding chassis slot, tighten front‑panel fixing screws. Restore chassis power supply, complete system power‑on self‑test and DC‑signal‑channel verification test.
Usage Notes Prevent mechanical scratch damage to conformal coating layer. Only install into compatible GE Mark V turbine control chassis.
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