Product Details
Description
The AO820 features superior channel-to-channel isolation and flexible configuration for current or voltage outputs. It includes advanced diagnostics for loop and hardware health, ensuring precise and stable control through high-resolution D/A conversion. Ideal for power, chemical, and water industries, it delivers reliable performance in demanding environments.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: AO820 (3BSE008546R1)
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Number of Channels: 4 channels, individually isolated
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Signal Ranges: 0 to 20 mA, 4 to 20 mA, or 0 to 10 V, ±10 V
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D/A Resolution: 12 bits plus sign
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Isolation Rating: 50 V continuous channel-to-channel and channel-to-ground
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Power Supply: 24 VDC nominal
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Dimensions: 119 mm x 45 mm x 102 mm
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Physical Weight: 0.22 kg (0.48 lbs)
Features
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Advanced Galvanic Isolation: Provides dedicated isolation for every channel, eliminating risks associated with ground loops and protecting the system from field-side transients.
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Bi-Functional Output Support: Capable of delivering both unipolar/bipolar voltage and standardized current loops from a single module type.
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Integrated Loop Supervision: Automatically detects open-circuit conditions in current mode and short-circuits in voltage mode to ensure loop integrity.
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Configurable Safety States: Supports user-defined fail-safe actions, such as forcing outputs to a specific safe value or holding the last known state during communication loss.
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Hot-Swap Compatibility: Engineered for live maintenance, allowing the module to be swapped without powering down the I/O station or affecting adjacent modules.
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Robust Diagnostic LEDs: Features a comprehensive set of front-panel indicators for rapid identification of module status, communication health, and channel faults.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.