Technical Specifications 16 fully isolated digital input channels; 24 V DC nominal input voltage, 18–32 V DC operating range; logic high threshold 15 V DC; 7 mA input current per channel at 24 V DC; typical response time 10 ms; 2500 VAC isolation voltage; SIL 3 certified per IEC 61508; operating temperature -20°C to +60°C.
Functional Features Safety-grade discrete signal acquisition; per-channel short-circuit protection with self-resetting 450 mA current limit; open-wire fault detection; channel status diagnostics; redundant signal processing.
Application Scenarios Machine safety guarding, emergency stop button monitoring, limit switch sensing, safety interlock systems, process safety input monitoring.
Performance Parameters High signal sampling stability; low signal drift; fast fault detection response; high channel-to-channel isolation; long-term operational reliability.
Material Composition Flame-retardant plastic housing, fiberglass signal conditioning circuit board, gold-plated backplane connector, copper alloy terminal blocks.
Structural Characteristics Rack plug-in module structure, front panel with channel status LEDs, rear backplane bus connector, screw-type field wiring terminals.
Working Principle Detects the on-off state of field safety contact signals, conditions and isolates the signals, converts them into logic-level digital data, and transmits the validated data to the safety controller via the system backplane.
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