Technical Specifications Multi‑channel safety digital signal input and output interface. Auxiliary power 24 V DC, typical power consumption 4.9 W. Operating temperature 0 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated printed circuit board.
Functional Features Acquires emergency stop, safety door and other safety contact status signals. Executes robot safety interlock logic judgment. Outputs safety control signal to cut‑off servo drive power under fault condition. On‑board LED indicates safety circuit operating and fault status. Built‑in hardware self‑diagnosis detects safety loop open‑circuit and short‑circuit faults.
Application Scenarios Safety control spare part for ABB industrial robot control cabinet. Widely used in robot safety circuit failure maintenance on automated production sites.
Performance Parameters High‑reliability safety signal processing capability. Fast safety protection response speed. Accurate self‑diagnosis for safety circuit faults.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Safety logic processing chip, signal conditioning and relay assemblies. Conformal protective coating. Internal bus and external signal plug‑in connectors.
Structural Characteristics Plug‑in circuit board for robot cabinet installation. Equipped with internal bus connectors and external safety signal terminals. Reserved mechanical fixing holes. Weight approximately 0.54 kilogram.
Working Principle After power‑on, board completes hardware self‑test for safety circuits. Safety contact signals such as emergency stop and safety door are collected. Internal safety logic judgment is performed. When safety signal triggers fault condition, control signal is output to cut‑off robot servo power. Diagnosis circuit continuously monitors each safety loop signal status.
Installation Requirements Disconnect robot cabinet total power supply before replacement. Insert 3HAC026272‑001 into designated cabinet slot and tighten fixing screws. Complete external safety contact signal wiring. Confirm internal bus connectors are fully engaged. Restore power supply, verify emergency stop and safety door interlock function.
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