Technical Specifications Multi‑channel analog signal input interface, internal bus data interface. Auxiliary control power 24 V DC, typical power consumption 5.2 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated printed circuit board.
Functional Features Receives voltage and current sampling signals from generator transformer unit. Completes signal filtering, amplification and conditioning processing. Transmits conditioned measurement data to main excitation controller. On‑board LED indicates board operating and fault status. Built‑in hardware self‑diagnosis detects signal input circuit faults.
Application Scenarios Spare part for ABB static excitation system. Applied in power plant generator excitation cabinet maintenance and hardware replacement.
Performance Parameters High‑precision signal conditioning performance. Strong anti‑interference capability for on‑site power‑plant electromagnetic environment. Stable long‑term continuous operating performance.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Signal filtering, amplification and conversion assemblies. Conformal protective coating. Internal bus connectors and external signal wiring terminals.
Structural Characteristics Cabinet fixed‑mount circuit board. Equipped with external signal terminals and internal bus plug‑in connectors. Reserved mechanical fixing holes. Weight approximately 0.51 kilogram.
Working Principle Generator sampling voltage and current signals are input to board terminals. Internal circuit completes filtering and amplitude adjustment. Processed analog signals are converted and transmitted to excitation main controller. Diagnosis circuit continuously monitors each signal input loop operating status.
Installation Requirements Completely cut off excitation cabinet main power and auxiliary power before replacement. Secure 216NG63A to designated cabinet mounting position. Complete external sampling signal wiring and internal bus connection. Restore power supply, perform signal sampling calibration and excitation system closed‑loop test.
Usage Notes Implement anti‑static protection during handling. Verify sampling signal polarity after installation. Do not scratch conformal coating surface. Strictly perform excitation system function verification after board replacement.
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