Technical Specifications Multi‑channel relay contact output. Auxiliary logic power 24 V DC, typical power consumption 4.4 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Galvanic isolation between internal logic circuit and relay contact output side.
Functional Features Receives logic output commands from main DCS controller. Drives independent relay contact action for each channel. Each channel equipped with LED status indicator. Realizes galvanic isolation between control logic and field load side. Built‑in hardware self‑diagnosis detects relay drive circuit abnormality.
Application Scenarios Logic output spare‑part for ABB DCS system. Applied in power plant, petrochemical automation projects to control field‑side switching equipment and interlock loops.
Performance Parameters Stable relay contact switching performance. Galvanic isolation isolates field‑side interference. Self‑diagnosis detects internal driving circuit faults.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Electromagnetic relay assemblies and driving components. Back‑plane plug‑in connector and field wiring screw terminals.
Structural Characteristics Standard DCS plug‑in module structure. Front side equipped with field wiring terminals and channel status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.38 kilogram.
Working Principle DCS main controller sends logic output command via back‑plane bus. Internal driving circuit energizes corresponding relay coil. Relay contact closes or opens to complete on‑off control of field load loop. LED indicator synchronously reflects channel output state. Diagnosis circuit monitors relay driving circuit condition continuously.
Installation Requirements Insert 3BSE004693R1 into target slot of DCS rack and lock fixing latch. Complete field load circuit wiring on front‑end screw terminals. Confirm back‑plane connector is fully engaged. Power on DCS system and carry out channel output function test.
There are no reviews yet.