Sweden ABB AO801 Overview
The ABB AO801 is an 8-channel analog output module (Model 3BSE020514R1) from the ABB S800 / Advant 800xA series. It converts digital control signals from the controller into 0–20 mA or 4–20 mA current outputs for use by field actuators such as valves, drives, and sensors. The module is commonly used in process automation, robotic spray systems, and industrial production lines.
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Main Technical Specifications
| Item | Specification |
|---|---|
| Number of channels | 8 single-ended analog outputs |
| Output range | 0 – 20 mA (or 4 – 20 mA) |
| Resolution | 12 bits |
| Maximum load resistance | 850 Ω |
| Isolation voltage | 50 V |
| Self-diagnostics | Periodic self-diagnosis; enters INIT mode (no signal output) when power supply is low |
| Protection features | Short-circuit protection; OSP (Output State Protection) |
| Dimensions | Approx. 16 cm × 16 cm × 12 cm (≈ 0.8 kg) |
| Operating temperature | -40 °C to +125 °C |
| Power supply | 24 V DC (bolt connection) |
Functions and Advantages
High-Precision Output:
12-bit resolution ensures fine and stable analog signal control.
Reliability:
Built-in short-circuit and OSP protection enable automatic switching to a predefined safe state under abnormal conditions.
Self-Diagnosis:
The module performs periodic internal self-checks and automatically enters a safe INIT state when the supply voltage is low to prevent false outputs.
Modular Design:
Equipped with detachable connectors for quick on-site replacement or maintenance.
Compatibility:
Fully compatible with ABB S800 I/O and Advant 800xA control platforms; supports multiple fieldbus protocols.
Typical Applications
Robotic Spray Systems:
Controls air and fluid supply to spray guns for precise coating performance (air pressure 0.5–10 bar; fluid flow 0–100 ml/min).
Process Control:
Drives field devices such as valves, control valves, and variable-frequency drives (VFDs) requiring analog current inputs.
Industrial Automation Lines:
Provides analog signal outputs in automation loops for packaging, food processing, and chemical industries.
Summary
The ABB AO801 is a high-performance 8-channel analog output module known for its precision, robust protection mechanisms, and seamless integration with ABB’s main control systems. It has become a standard component in modern industrial automation. Whether in robotic coating systems, process control, or general production automation, the AO801 delivers stable and accurate analog output, ensuring efficient and reliable control performance.
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