Technical Specifications External power input interface, multi‑channel internal back‑plane power output. Auxiliary input voltage range according to system specification. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Built‑in hardware over‑current and over‑voltage protection circuit.
Functional Features Receives external input power and distributes stable power to each module on rack back‑plane. Implements hardware‑level over‑current protection for each power output branch. Monitors input and output power status in real‑time. Front‑panel LED indicators display power‑supply running and fault alarm. Built‑in self‑diagnosis detects internal power circuit abnormality.
Application Scenarios Spare power interface unit for ABB DCS control rack. Widely used in process‑control sites requiring high‑reliability power supply for automation hardware.
Performance Parameters Stable rack power distribution performance. Fast hardware over‑current protection response. Reliable power‑supply fault monitoring capability.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Power conversion, protection assemblies and back‑plane plug‑in connector. Power input‑output screw terminals.
Structural Characteristics Standard rack plug‑in module. Front side equipped with power terminals and status LED indicators. Rear side fitted with back‑plane power bus connector. Weight approximately 0.38 kg.
Working Principle External power source inputs to IEPAS02 module. After filtering and protection processing, power is transmitted to rack back‑plane for each functional module use. Monitoring circuit continuously detects power voltage and current, triggers protection action and outputs fault signal once abnormal condition occurs.
Installation Requirements Insert IEPAS02 into designated rack slot and lock fixing latch. Connect external power wiring to front‑end terminals. Ensure back‑plane connector is fully engaged. Restore power supply, check each module power‑on state and verify power‑supply fault alarm function.
Usage Notes Strictly follow rated input power specification for wiring. Hot‑plug operation under powered condition is prohibited. Test power‑supply branch protection function after module replacement.
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