Technical Specifications Back‑plane bus powered; 24V DC signal input level; 256‑point safety logic resource Operating temperature:0℃~+60℃; Storage temperature:‑40℃~+85℃; Humidity:5‑95% non‑condensing Mounting:rack plug‑in mounting
Functional Features Receives multi‑channel safety status signals. Signal filtering and noise suppression. Executes safety interlock logic. Built‑in self‑diagnosis for channel and hardware faults. Front‑panel LED status indicators.
Application Scenarios Safety interlock processing for GE DCS racks. Critical safety loops for thermal power plant boiler and turbine systems. Spare maintenance replacement module.
Performance Parameters Fast safety‑logic processing. Reliable field‑signal anti‑interference performance. Accurate fault self‑diagnosis output.
Material Composition Flame‑retardant plastic housing. Multilayer glass‑fiber epoxy conformal coated PCB. Signal conditioning circuits, logic chips, back‑plane plug‑in connector and field terminals.
Structural Characteristics Standard rack plug‑in module. Rear connector connects rack back‑plane bus. Front‑panel signal terminals and LED indicators. Metal locking screw for slot fixation.
Working Principle Module draws power from rack back‑plane. Field safety signals pass filter and level conversion. On‑board chip executes downloaded safety logic, transmits result to controller via back‑plane bus.
Installation Requirements Cut rack power supply before replacement. Insert module into target rack slot and tighten locking screw. Wire field safety signals. Restore rack power, download logic configuration and verify interlock actions.
Usage Notes Prohibit hot‑plug under power. Cable shielding grounding follows site specifications. Observe anti‑static operation rules.
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