Technical Specifications High‑density multi‑channel analog input. Back‑plane system bus interface. Auxiliary power 24 V DC. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Channel‑level signal isolation and filtering circuit.
Functional Features Collects multi‑loop analog signals from field transmitters. Completes signal conditioning and analog‑digital conversion. Transmits digital measuring data to controller via back‑plane bus. Front‑panel LED indicators display module running state and channel fault alarm. Built‑in self‑diagnosis detects signal loop breakage and internal hardware abnormality.
Application Scenarios Spare high‑density analog input module for ABB control rack. Widely adopted in large‑scale chemical and power plant automation cabinets.
Performance Parameters Multi‑channel concurrent stable sampling. High‑precision analog‑digital conversion. Reliable channel fault identification capability.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Multi‑channel sampling, conversion and isolation assemblies. Back‑plane plug‑in connector and field signal terminals.
Structural Characteristics Standard rack plug‑in module. Front side equipped with dense field signal terminals and status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.37 kg.
Working Principle Multi‑group field analog signals enter IMAS102 through front terminals. Each channel completes isolation filtering and analog‑digital conversion independently, converted digital data is uploaded to main controller via back‑plane bus. Diagnosis circuit monitors each channel working state in real‑time.
Installation Requirements Cut off rack auxiliary power before replacement. Insert IMAS102 into target rack slot and lock fixing latch. Connect multi‑loop field signal wiring to front‑end terminals. Ensure back‑plane connector is fully engaged. Restore power supply, download channel configuration and verify sampling accuracy of each loop.
Usage Notes Classify and connect different signal types strictly according to terminal definition. Hot‑plug operation under powered condition is prohibited. Verify each channel measuring value after installation.
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