Technical Specifications Multi‑channel sequence logic signal 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 anti‑corrosion protection. Mark V plug‑in mechanical structure.
Functional Features Executes hardware‑assisted turbine startup and shutdown sequence logic processing. Monitors multi‑group interlock condition signals for turbine operation. Implements precise timing control for sequential action steps. Exchanges sequence status and interlock data with main CPU via back‑plane bus. Supports sequence‑logic hardware self‑diagnosis after power‑on.
Application Scenarios AJD‑revision spare replacement sequencer logic board for GE Mark V gas and steam turbine control systems, widely used in power plant turbine equipment maintenance projects.
Performance Parameters Reliable sequence‑logic judgment performance, high‑precision timing control accuracy, stable interlock‑signal detection response capability.
Material Composition Multilayer glass‑fiber epoxy printed circuit board with AJD‑revision component layout. Logic processing integrated circuits, timing components, signal buffer devices. Gold‑plated Mark V back‑plane edge connector. Front metal panel with status LED indicators and fixing hardware. Conformal protective coating layer.
Structural Characteristics Standard Mark V chassis plug‑in board dimension. Rear gold‑plated edge connector mates with Mark V system back‑plane bus. Front metal panel includes status LED indicators and fixing screws. PCB layout separates high‑speed logic area and signal input‑output area to reduce electromagnetic interference.
Working Principle Board obtains operating power from Mark V chassis back‑plane. It receives interlock condition signals and sequence commands from main CPU via back‑plane bus. On‑board logic circuit executes turbine sequential operation logic and timing control.
Installation Requirements Insert DS200TCQCG1AJD into designated chassis slot, tighten front‑panel fixing screws. Restore chassis power supply, complete system power‑on self‑test and turbine sequence‑logic simulation verification.
Usage Notes Avoid mechanical scratch damage to conformal coating layer. Only use within compatible GE Mark V turbine control chassis.
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