Technical Specifications Multi‑channel analog measuring input, pulse drive output interfaces. Auxiliary DC working power supplied by internal power board. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Galvanic isolation between low‑voltage control circuit and high‑voltage power loop.
Functional Features Receives current, temperature and fault feedback signals from power semiconductor unit. Completes signal conditioning and level conversion, transmits valid measuring data to main control board. Receives pulse commands from main control unit and outputs isolated drive signals to power unit. On‑board LED indicators display signal link and fault status.
Application Scenarios Spare power interface board for ABB industrial drive. Applied in frequency converter maintenance for fan, pump and transmission equipment.
Performance Parameters High‑isolation signal transmission performance. Fast pulse signal response speed. Accurate power unit status sampling capability.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Opto‑coupler isolation, signal sampling and drive conditioning assemblies. Multi‑pin high‑voltage resistant connectors and metal fixing hardware. Conformal anti‑corrosion coating.
Structural Characteristics Large‑size rectangular circuit board. Multiple high‑voltage‑resistant connectors arranged on board edges. Screw mounting holes for cabinet installation.
Working Principle Feedback signals from power unit enter NINT‑68 through connectors. After isolation and signal conditioning, measuring data is uploaded to main control board. Control pulse from main board passes isolation circuit and is sent to power semiconductor device.
Installation Requirements Cut off converter main power and auxiliary power, ensure DC‑bus complete discharge before replacement. Apply anti‑static protection. Fasten NINT‑68 to cabinet mounting position. Align and insert all connectors fully. Restore power supply, run drive self‑check program and verify power unit feedback signal correctness.
Usage Notes Avoid mechanical stress on high‑voltage signal connectors. Hot‑plug operation under powered condition is prohibited. Check no power‑related fault alarm after power‑on.
There are no reviews yet.