Technical Specifications Model: DO801 System Compatibility: ABB S800 I/O, AC800M Controller Output Channel Quantity: 16 channels Output Type: 24 V DC transistor sinking output Per‑channel Current: Maximum 0.5 A Group Isolation: Two groups of 8‑channel galvanic isolation Power Supply: Logic power from rack backplane, field power external 24 V DC 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 Sixteen‑channel 24 V DC sinking transistor outputs drive field relays and small‑size actuators. Two groups of 8‑channel galvanic isolation restrain surge interference spreading between output groups. Per‑channel short‑circuit and over‑current protection prevents module damage under field fault conditions. Front‑panel LED indicators reflect real‑time output status for each channel. Built‑in self‑diagnosis monitors power supply fault, output channel short‑circuit and hardware failure. Supports hot‑swap under permitted maintenance workflow of S800 system.
Application Scenarios S800 I/O DO801 module spare‑part replacement. Chemical, water‑treatment and thermal power plant discrete actuator control cabinet. General‑purpose on‑off control for relays, solenoid valves and status indicator lights.
Installation Requirements Insert DO801 into S800 I/O rack target slot and lock side spring buckle. Connect external 24 V DC field power and field load cables to front‑side screw terminals, tighten terminals to specified torque. Complete protective earthing according to S800 system grounding requirements. Separate field output power cables from weak‑signal control cables inside cabinet. Reserve heat‑dissipation ventilation space around module slot. Ambient operating temperature shall keep within 0 ℃ ~ +55 ℃ without condensation.
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