Technical Specifications Rack back‑plane bus connector, multi‑channel field signal screw‑type terminals, module locking mechanism. Operating power supplied by rack back‑plane. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%.
Functional Features Provides fixed mounting base for compatible I/O modules. Realizes electrical connection between I/O module and rack back‑plane bus. Provides screw‑type wiring terminals for field signal connection. Optimized EMC circuit improves anti‑interference performance. Supports replacing I/O module without removing field wiring.
Application Scenarios Spare terminal base for ABB AC800M DCS I/O module. Applied in new‑project configuration and old cabinet upgrading maintenance.
Performance Parameters Stable multi‑channel signal transmission performance. Enhanced industrial EMC anti‑interference characteristic. Reliable mechanical locking performance.
Material Composition Flame‑retardant plastic base housing. Multilayer glass‑fiber epoxy printed circuit board with optimized EMC layout. Rack back‑plane plug‑in connector, field signal screw terminals and module locking mechanical assembly.
Structural Characteristics Standard rack plug‑in base structure. Rear connector connects to rack back‑plane bus. Metal locking screw for rack slot fixing.
Working Principle TB820V2 3BSE051306R1 is inserted into control rack slot and connects to back‑plane bus. Field input‑output signal accesses base screw terminals. S
Installation Requirements Install compatible I/O module and lock. Connect field signal cable to front‑panel terminals. Restore rack power supply, verify each signal channel working status.
Usage Notes Hot‑swap of base under powered condition is prohibited. Ensure terminal screw tightening torque meets requirement.
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