Technical Specifications Multi‑channel relay dry‑contact output. Back‑plane system bus interface. Auxiliary working power 24 V DC. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Each channel adopts independent relay galvanic isolation.
Functional Features Receives logic control commands from main controller via back‑plane bus. Drives internal relay contact pull‑in and release to output switch signal for field devices. Front‑panel LED indicators show channel output status and module fault alarm. Built‑in hardware self‑diagnosis detects module power supply and bus communication abnormality.
Application Scenarios Spare relay output module for ABB automation control rack. Widely used in chemical, water treatment and factory automation cabinet maintenance.
Performance Parameters Stable relay contact switching performance. High‑isolation between field circuit and control internal circuit. Reliable channel status indication function.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Electromagnetic relay assemblies, bus signal conditioning circuit. Back‑plane plug‑in connector and field signal screw terminals.
Structural Characteristics Standard rack plug‑in module. Front side equipped with field wiring terminals and status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.35 kg.
Working Principle Controller sends digital output commands through back‑plane bus to IORE63‑20‑CC. Internal drive circuit excites corresponding relay coil, relay contact acts and outputs dry‑contact switch signal to field equipment. Status feedback signal is returned to controller.
Installation Requirements Cut off rack auxiliary power before replacement. Insert IORE63‑20‑CC into corresponding rack slot and lock fixing latch. Connect field load wiring to front‑end terminals. Ensure back‑plane connector is fully engaged. Restore power supply, trigger each channel output command and verify field equipment action response.
Usage Notes Strictly follow relay contact rated load parameter for field load matching. Hot‑plug operation under powered condition is prohibited. Check contact action feedback after installation.
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