Technical Specifications Model: DO815 System Compatibility: ABB S800 I/O, AC800M Controller Output Channel Quantity: 8 relay output channels Output Form: Form A normally‑open dry contact Per‑contact Rating: 250 V AC 5 A, 30 V DC 5 A Galvanic Isolation: 1500 V AC between logic side and field side Logic Power Supply: From S800 rack backplane Mounting: DIN‑rail S800 rack plug‑in Operating Temperature: 0 ℃ to +55 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE, UL
Functional Features Eight high‑power relay dry‑contact outputs support large‑current AC and DC load switching. Full galvanic isolation separates control logic circuit from field load circuit. Each channel equips front‑panel LED indicator to reflect relay actuation real‑time status. Built‑in self‑diagnosis function monitors module power‑supply and fieldbus communication health status. Field‑side load power is fully externally supplied without power passing through module internal circuit. Supports hot‑swap operation within S800 system permitted maintenance scope.
Application Scenarios S800 I/O DO815 module spare‑part replacement. Process industry cabinet heavy‑duty solenoid valve, large‑capacity intermediate relay switching control. Industrial projects needing relay outputs with higher contact current rating.
Installation Requirements Insert DO815 into S800 I/O rack target slot and lock side spring buckle. Connect external field load power and load equipment cables to front‑side relay contact heavy‑duty screw terminals, tighten terminals to specified torque. Implement protective earthing complying with S800 system grounding specification. High‑current field load cables shall be physically separated from weak‑signal control cables inside cabinet. Reserve sufficient ventilation heat‑dissipation space around module slot. Ambient operating temperature shall keep within 0 ℃ ~ +55 ℃ without condensation.
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