3BSE008514R1 | ABB DO820 Digital Output Module

The DO820 is a Digital Output (Relay NO) module designed for the S800 I/O system, offering 8 channels of 230 V a.c./d.c. relay outputs. This module provides isolated relay outputs with a range of features designed to ensure reliable and safe operation in industrial environments.

Key Features:

• Relay Outputs: 8 channels for 230 V a.c./d.c. (5 – 250 V a.c./d.c.) with Normal Open (NO) contacts.
• Current Handling: Each output channel can handle up to 3 A of continuous current.
• Channel Isolation: Outputs are individually isolated, ensuring minimal interference and greater safety.
• Status Indicators: Each output channel has an output status indicator LED to show the current state.
• Error Handling: The module features output state protection (OSP) that sets outputs to a predetermined state upon error detection.
• Relay Supply Supervision: The module includes a 24 V relay power converter monitor, which provides error signals if relay voltage is lost. This can be monitored via the ModuleBus, and the error status is indicated by a Warning LED.

Signal Specifications:

• Output Voltage: 5 – 250 V a.c./d.c. (max)
• Current: 3 A max per channel
• Relay Type: Normally Open (NO) contacts
• Signal Type: Relay
• Number of Channels: 8

Diagnostics and Supervision:

• LED Indicators:
  • F (Fault)
  • R (Run)
  • W (Warning)
  • OSP (Output State Protection)
  • Channel Status LEDs (1-8)
• Supervision: Monitors relay supply voltage, indicating module and channel errors when voltage is lost.
• Event Recording: Event accuracy is within -0 ms / +1.3 ms.

Environmental and Certification:

• Temperature Range:
  • Operating: 0 to +55°C (32 to 131°F)
  • Storage: -40 to +70°C (-40 to 158°F)
• Humidity: 5 to 95%, non-condensing.
• Protection Class: IP20 (for dust protection)
• Certifications:
  • CE Marked
  • Electrical Safety: EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201
  • Marine Certifications: ABS, BV, DNV, LR
  • RoHS Compliance: Yes (DIRECTIVE/2011/65/EN)
  • WEEE Compliance: Yes (DIRECTIVE/2012/19/EU)

Mechanical and EMC Compliance:

• Pollution Degree: Degree 2 (IEC 60664-1)
• Corrosion Protection: ISA-S71.04: G3
• EMC Compliance: EN 61000-6-4, EN 61000-6-2
• Overvoltage Categories: IEC/EN 60664-1, EN 50178
• Class I Equipment (earth protected)

Power Consumption:

• Power Dissipation: Typical 2.9 W
• Current Consumption:
  • +5 V ModuleBus: 60 mA
  • +24 V ModuleBus: 140 mA
  • External 24 V: None required

Mechanical Dimensions:

• Width: 45 mm (1.77 inches)
• Depth: 102 mm (4.01 inches), 111 mm (4.37 inches with connector)
• Height: 119 mm (4.7 inches)
• Weight: 0.23 kg (0.5 lbs)

Compatibility:

• ModuleBus Compatibility: Works with MTU modules like TU811, TU813, TU831, TU836, TU837, and TU851.
• Keying Code: AD

Application:

The DO820 is ideal for controlling high-voltage devices in industrial automation systems, where reliable and isolated digital outputs are required. Its robust features for error handling, supervision, and diagnostics ensure smooth operation in critical applications.

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