Technical Specifications Main power input interface, battery management circuit, back‑plane bus power output. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Built‑in rechargeable battery pack.
Functional Features Realizes automatic charging for internal backup battery under normal main power condition. Supplies backup power to controller rack once main power supply drops off. Monitors battery voltage and health condition. Front‑panel LED indicators show charging status, battery ready and fault alarm. Built‑in self‑diagnosis detects battery aging and internal circuit abnormality.
Application Scenarios Spare backup power module for ABB control rack. Applied in process control system requiring power‑failure data protection function.
Performance Parameters Stable backup power output within rated hold‑up time. Accurate battery charge‑discharge management performance. Reliable battery fault detection capability.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board for battery management circuit. Sealed rechargeable battery assembly. Rack back‑plane plug‑in connector.
Structural Characteristics Standard rack plug‑in module form factor. Rear connector connects to rack back‑plane bus. Front panel arranges status LED indicators. Battery assembly sealed inside module housing.
Working Principle Under normal main power condition, SB511 charges internal battery. When main power disappears, battery circuit switches automatically and supplies DC power to rack back‑plane bus. Battery management circuit monitors voltage and temperature to prevent over‑charge and over‑discharge.
Installation Requirements Cut off rack main power before replacement. Insert SB511 into designated rack slot and tighten fixing screw. Restore main power supply, observe charging indicator status. Simulate main power loss condition to verify backup power hold‑up function.
Usage Notes Battery has limited service life, periodic inspection is required. Hot‑plug under powered condition is prohibited. Allow sufficient charging period before performing backup function test.
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