Technical Specifications Backup working time depends on battery configuration. Auxiliary working power 24 V DC. Typical power consumption 3.5 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Module surface IP20. Complies with ABB AC800M system technical specification.
Functional Features Monitors main power supply voltage continuously. Automatically switches to battery backup mode once main power loses. Supports controller data storage during power failure. Front‑panel LED indicates power status and battery health condition. Supports hot‑swap operation.
Application Scenarios Equipped in AC800M DCS controller rack. Applied for process control industry such as chemical, pulp and paper, power plant. Used for new project construction and spare‑part replacement.
Performance Parameters Switching between main power and backup power completes without controller interruption. Battery state detection function reflects aging degree. Hot‑swap replacement will not affect other rack modules.
Material Composition Glass‑fiber epoxy printed circuit board. Power monitoring and switching circuit, battery management components. Reinforced plastic module housing. Back‑plane plug‑in copper alloy contact pieces.
Working Principle Module monitors main 24 V DC power supply signal in real time. When main power supply disappears, internal switching circuit switches to battery power supply instantly. Backup power supplies power for controller to finish data preservation. After main power recovers, module returns to normal monitoring and battery charging state.
Installation Requirements Insert module into appointed slot of AC800M controller rack and lock screw. Confirm 24 V DC main power supply wiring is correct. Complete battery assembly according to requirement. Ensure cabinet protective grounding. Check LED status after power‑on.
Usage Notes Take anti‑static measures during installation and replacement. Battery needs periodic inspection and replacement according to maintenance cycle. Forbid short‑circuit battery terminal. Do not operate module beyond specified temperature range.
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