Technical Specifications Main power input interface, multi‑channel DC power output. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Built‑in over‑voltage, over‑current and short‑circuit protection circuits. Conformal coated printed circuit board.
Functional Features Receives input power and completes power conversion. Outputs multiple regulated DC power for each internal functional board. Triggers protection action under over‑voltage, over‑current and short‑circuit conditions. On‑board LED indicates power input and output status. Built‑in hardware self‑diagnosis detects output overload and internal circuit faults.
Application Scenarios Auxiliary power spare part for ABB industrial frequency converter. Widely used for drive power supply hardware failure replacement.
Performance Parameters Stable multi‑channel DC power output capability. Fast protection response under abnormal electrical conditions. Low heat generation during long‑duration continuous operation.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Power conversion transformer, switching device and protection assemblies. Conformal protective coating. Power input and output terminals.
Structural Characteristics Cabinet fixed‑mount power board. Equipped with power input terminals and multi‑group output connectors. Reserved mechanical fixing holes. Weight approximately 0.58 kilogram.
Working Principle Input power enters the board, passes through rectification, filtering and switching conversion circuits. Multiple groups of stable DC voltage are generated and supplied to each internal control board. Protection circuit cuts off power output immediately when overload or short‑circuit occurs. Diagnosis circuit continuously monitors power input and each output channel status.
Installation Requirements Completely disconnect converter main power before replacement. Fasten AGPS‑21C to designated cabinet mounting position. Complete power input wiring and each output connector connection. Restore power supply and verify all DC output voltage values.
Usage Notes Confirm input voltage matches hardware specification before power‑on. Maintain good ventilation and heat dissipation around the board. Do not bypass built‑in protection components. Check all internal boards working status after replacement.
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