Technical Specifications Auxiliary voltage input, multi‑channel DC output. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Integrated over‑voltage, over‑current and short‑circuit hardware protection.
Functional Features Completes voltage conversion and filtering processing for input auxiliary power. Outputs multiple groups of stable DC power for each internal circuit board. Triggers hardware protection action when output overload or short‑circuit occurs. On‑board status indicators reflect power supply running and fault condition.
Application Scenarios Spare internal power supply board for ABB medium‑power industrial frequency converter. Used for drive equipment overhaul in metallurgy, water treatment industry.
Performance Parameters Low‑ripple multi‑channel DC output performance. Fast fault protection response under overload condition. Continuous long‑time stable load‑bearing operation capability.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Power conversion transformer, rectifier, filter and protection assemblies. Multi‑pin signal connectors and metal fixing hardware. Conformal protective coating on circuit surface.
Structural Characteristics Rectangular flat circuit board. Multiple input and output connectors distributed on board edges. Screw mounting holes reserved for cabinet fastening.
Working Principle External auxiliary power inputs to NGPS‑12 board. After rectification, filtering and power conversion circuit, several groups of stable DC voltage are generated for internal boards. Monitoring circuit continuously detects output voltage and current, activates protection when abnormal condition appears.
Installation Requirements Cut off frequency converter main power and auxiliary power, wait for DC‑bus capacitor full discharge before replacement. Wear anti‑static wrist strap. Fasten NGPS‑12 to designated cabinet position. Insert all multi‑pin connectors completely. Restore auxiliary power, measure each DC output voltage and verify normal power‑on of each internal board.
Usage Notes Reserve heat dissipation clearance around power board. Hot‑plug under powered state is prohibited. Compare measured output voltage with rated specification after power‑on.
There are no reviews yet.