Technical Specifications Model: DSTXW110 System Compatibility: ABB Freelance DCS System Channel Quantity: 16 channels Signal Type: 24 V DC digital input Per‑channel Fuse Rating: 250 mA replaceable fuse Galvanic Isolation: 500 V AC between field side and logic side Connector Type: Screw clamp terminal, wire range 0.2‑2.5 mm² Mounting Mode: DIN‑rail TS35 mounting Power Supply: Derived from matched I/O module back‑plane Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE
Functional Features Sixteen independent signal channels complete field digital signal wiring termination. Per‑channel replaceable fuse provides hardware over‑current protection for field loops. Built‑in signal filter circuit suppresses high‑frequency electromagnetic interference from field cables. Group‑wise galvanic isolation eliminates ground loop disturbance between field equipment and control system. Front‑panel LED status indicators reflect real‑time signal presence status for each channel. Supports HART pass‑through signal transmission for hybrid digital‑analog field instruments. Modular DIN‑rail installation structure facilitates cabinet layout and spare‑part replacement.
Application Scenarios Spare‑part replacement for DSTXW110 termination board in Freelance DCS cabinet. Field signal wiring termination for limit switches, proximity sensors, relay contact feedback signals. Discrete signal loop protection for chemical, power and pulp‑paper process control cabinets. Retrofit and maintenance projects for legacy ABB Freelance automation systems.
Installation Requirements Clip DSTXW110 firmly onto standard TS35 DIN‑rail inside control cabinet. Connect field sensor cables to front screw‑clamp terminals and tighten terminals to specified torque value. Use dedicated flat signal cable to establish connection between DSTXW110 and corresponding DCS input module. Implement protective earthing complying with Freelance system grounding specification. Separate field signal cables from high‑power power cables inside cabinet. Ambient operating temperature shall keep within 0 ℃ ~ +60 ℃ without condensation.
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