Product Short Description
Product Introduction
The ABB DO910 is a 4‑channel intrinsically safe digital output module belonging to the ABB S900 remote I/O system, designed for direct installation in ATEX Zone 1 and Zone 2 hazardous areas. It provides galvanically isolated, intrinsically safe output signals to control low‑power field devices such as intrinsically safe solenoid valves, relays, and indicator lamps. Each channel features dual output terminals (A and B) with different voltage limits, supporting flexible connection to various intrinsically safe loads. The module integrates comprehensive line monitoring, short‑circuit protection, and advanced diagnostics, ensuring reliable operation in harsh industrial environments. With full galvanic isolation between channels, internal bus, and power supply, the DO910 eliminates electrical interference and enhances system safety. It communicates via PROFIBUS DP with ABB AC 800M controllers and System 800xA DCS, offering hot‑swap capability, G3 corrosion resistance, and seamless integration into hazardous‑area automation systems.
Description
Technical Specifications
Output Configuration
- Number of Output Channels: 4 intrinsically safe digital output channels
- Output Type: Solenoid driver, intrinsically safe (EEx ia II C)
- Dual Output Terminals: Each channel has two outputs (A and B) with different voltage limits (used alternately)
- Output A Voltage Range: 24 V DC – 250 V AC/DC
- Output B Voltage Range: 12 V DC – 24 V DC
- Maximum Output Current: 40 mA per channel
- Minimum Load Resistance: 270 Ω
- Output Response Time: ≤ 10 ms
- Line Monitoring: Short‑circuit and wire‑break detection for each channel
- Short‑Circuit Detection: Triggers when load voltage drops below 5 V
- Wire‑Break Detection: Triggers when output current falls below 1 mA
Isolation & Protection
- Channel Isolation: Full galvanic isolation between all channels
- System Isolation: Galvanic isolation between outputs, internal bus, and power supply
- Dielectric Test Voltage: 2000 V AC
- Overvoltage Category: II
- Pollution Degree: 2
- EMC Compliance: IEC 61000‑6‑2 (immunity), IEC 61000‑6‑4 (emission)
- Intrinsic Safety: Complies with ATEX and IECEx standards for Zone 0/1/2 hazardous areas
Power Specifications
- Power Supply: Provided via S900 I/O termination unit (no external power required)
- Modulebus Power Consumption: Typical 60 mA (+5 V DC)
- Total Power Dissipation: Typical 1.8 W
Physical & Mechanical Data
- Dimensions: 20 mm (W) × 104 mm (H) × 104 mm (D)
- Weight: 0.13 kg (net)
- Mounting: S900 I/O termination unit compatible
- Terminals: Pluggable screw terminal blocks for field wiring
- Housing: Industrial‑grade flame‑retardant plastic with G3 corrosion‑resistant coating
- Ingress Protection: IP20 (front face, IEC 60529)
Environmental Ratings
- Operating Temperature: -20 °C to +60 °C
- Storage/Transport Temperature: -40 °C to +70 °C
- Relative Humidity: 5% to 95% non‑condensing (max 93% at 40 °C)
- Corrosion Protection: ISA‑S71.04 G3 (heavy industrial corrosion resistance)
- Mechanical Compliance: IEC/EN 61131‑2 (vibration and shock resistance)
Certifications & Compliance
- Hazardous Locations: ATEX Zone 1/2, IECEx, C1 Div 1/2 cULus
- Safety: CE, UL, CSA, EN 61010‑1
- Marine: ABS, BV, DNV‑GL, LR
- RoHS: EU RoHS 2011/65/EU compliant
- WEEE: EU WEEE 2012/19/EU compliant
Functional Features
- 4‑Channel Intrinsically Safe Outputs: Delivers intrinsically safe signals for direct control of hazardous‑area devices
- Dual Output Terminals: Each channel offers two voltage‑limited outputs for flexible load connection
- Comprehensive Line Monitoring: Real‑time short‑circuit and wire‑break detection with configurable deactivation
- Full Galvanic Isolation: Isolates channels, bus, and power to eliminate interference and ensure safety
- Advanced Diagnostics: Continuous monitoring of output status, voltage levels, and fault conditions via PROFIBUS DP
- Hot‑Swap Capability: Allows module replacement without system shutdown, minimizing downtime
- G3 Corrosion Resistance: Coated construction for reliable operation in highly corrosive industrial environments
- Hazardous‑Area Compatibility: Certified for installation in ATEX Zone 1 and Zone 2, eliminating need for external barriers
- Seamless Integration: Native compatibility with ABB S900 I/O, AC 800M controllers, and System 800xA DCS
- No External Power Required: Power supplied via S900 termination unit, simplifying installation
- Robust Environmental Design: Operates reliably in extreme temperatures and high‑humidity conditions
Application Scenarios
- Oil & Gas Industry: Onshore/offshore drilling platforms, refineries, pipelines, and storage terminals in hazardous areas
- Chemical & Pharmaceutical Manufacturing: Chemical processing plants, pharmaceutical facilities, and paint manufacturing in explosive atmospheres
- Process Industries: Petrochemical plants, fertilizer production, and specialty chemical facilities
- Mining Operations: Underground and surface mining equipment control in gas‑hazardous zones
- Power Generation: Thermal power plants, biomass facilities, and waste‑to‑energy plants with explosive dust/gas environments
- Water & Wastewater: Treatment plants and pumping stations in potentially explosive areas
- Marine & Offshore: Shipboard automation, offshore rigs, and subsea control systems (marine‑certified)
- Food & Beverage: Facilities handling flammable ingredients or solvents in hazardous zones
- System Retrofits: Upgrading legacy hazardous‑area control systems with modern intrinsically safe I/O capabilities
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