ABB AO845 3BSE023676R1 Analog Output Module

Overview

The ABB AO845 Analog Output Module is designed for both single and redundant applications, featuring 8 unipolar analog output channels with a signal specification of 4…20 mA. This high-performance module offers precise current output and advanced diagnostics, ensuring reliable operation in critical automation and control systems.

Technical Specifications:

• Brand: ABB
• Model: AO845 (for single)
• Signal Specification: 4…20 mA output.
• Channels: 8 output channels, unipolar.
• Redundancy: Yes (supports redundant applications).
• Current Limiting: Short circuit proof with a limited output current.
• Resolution: 12-bit accuracy.
• Isolation: Groupwise isolated from ground.
• Output Load: Max 750 Ω.
• Error Margin: Maximum error of 0.1%.
• Temperature Drift: Max 50 ppm/°C.
• Update Cycle Time: 10 ms.
• Maximum Field Cable Length: 600 meters (656 yards).
• Power Dissipation: Typical 3.5 W.
• Current Consumption (Modulebus): Max. 125 mA at +5 V.
• Current Consumption (External): 218 mA at +24 V.
• Environmental Conditions:
  • Operating Temperature: 0 to +55 °C (+32 to +131 °F).
  • Storage Temperature: -40 to +70 °C (-40 to +158 °F).
  • Humidity: 5 to 95%, non-condensing.
  • Protection Class: IP20.
  • EMC: EN 61000-6-4, EN 61000-6-2.
  • Certifications: CE, UL, ATEX, and Marine (BV, DNV, LR).

Dimensions:

• Width: 45 mm (1.77”).
• Depth: 102 mm (4.01”), 111 mm (4.37”) including connector.
• Height: 119 mm (4.7”).
• Weight: 0.21 kg (0.46 lbs.).

FAQs:

1. What are the key differences between the AO845 and AO845A models?
   • The AO845 is designed for single applications, while the AO845A supports redundant configurations for higher reliability.
2. What is the maximum cable length supported?
   • The module can support field cables up to 600 meters (656 yards).
3. What type of communication does the AO845/AO845A support?
   • It supports HART pass-through communication for integration with HART-enabled field devices.
4. How does the diagnostics work in this module?
   • The module performs self-diagnostics and reports errors such as external channel error, internal channel error, and module error via LED indicators for easy monitoring.

For more detailed information, please check official datasheet:Product-AO845A