Technical Specifications Multi‑channel AC voltage sampling input interfaces, logic signal input and output connectors, auxiliary DC control power supply. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Circuit board surface with conformal coating protection.
Functional Features Samples grid voltage and converter output voltage signal in real time. Detects phase difference, frequency deviation and amplitude difference between two groups of voltage. Executes synchronization logic judgment, outputs allow‑parallel or blocking control signal to main control unit. On‑board test points support on‑site voltage and phase signal measurement. Built‑in circuit monitoring detects sampling channel failure.
Application Scenarios Spare synchronization control board for ABB high‑power power conversion cabinet. Applied in power generation, energy storage and industrial parallel converter equipment maintenance.
Performance Parameters High‑precision voltage phase and frequency sampling performance. Fast synchronization logic response speed. Reliable abnormal condition blocking output characteristic.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Voltage sampling conditioning circuit, phase detection processing chip, logic driving assemblies. Multi‑pin plug‑in connectors and metal screw mounting hardware. Conformal protective coating layer.
Structural Characteristics Rectangular circuit‑board structure. Reserved screw mounting holes for cabinet internal installation.
Working Principle SYN5201A‑Z,V277 3BHB006714R0277 receives auxiliary control power. Grid side and converter side AC voltage are sent to sampling circuit. The board calculates phase angle, frequency and amplitude difference.
Installation Requirements Take anti‑static protection during handling. Fasten board to cabinet mounting bracket with screws. Fully insert and lock each plug‑in connector. Restore auxiliary power supply, check sampling signal, verify synchronization logic function under simulation condition.
Usage Notes Sampling circuit connects to high‑voltage secondary signal, operation must follow high‑voltage safety specification. Anti‑static measures are mandatory. Hot‑plug under powered condition is prohibited. Do not scratch conformal coating layer.
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