Product Short Description
Product Brief Introduction
Universal mixed-signal terminal block supporting both digital input and digital output signal wiring, designed for compact control panels with limited chassis slot space, compatible with KJ3003 series multifunction I/O cards, integrated full isolation and channel diagnostic functions.
Description
Technical Specifications
- Mixed Channel Layout: 4 DI dry contact channels + 4 DO isolated output channels
- DI Side: Dry contact passive contact detection, internal 24VDC sensing voltage
- DO Side: 24VDC maximum 1A resistive load per channel
- Channel Isolation: 1500 VAC isolation between all field channels and control backplane
- Diagnostic Feedback: Per-channel open circuit, short circuit fault reporting to DeltaV workstation
Structural Features
Combined dual-function terminal layout, unified wiring strain relief, transparent protective wiring cover, integrated mechanical coding key to prevent mismatched I/O card pairing.
Working Principle
Dual independent isolated circuit zones separate digital input sensing circuits and digital output switching circuits, sharing single backplane communication interface with paired multifunction I/O card; optoelectronic isolation eliminates cross-talk interference between DI and DO signal loops.
Applications
- Compact skid-mounted process control panels, small batch reactor local control stations
- Water treatment, packaging machine integrated DCS control cabinets
Usage Precautions
Separate DI signal wiring and DO load wiring into independent cable trays to avoid inductive interference from output load switching
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