ABB AO890 | 3BSC690072R1 | Analog Output Module
$258.00
$520.00
Penerangan
Overview
The ABB AO890 (3BSC690072R1) is an 8-channel analog output module specifically engineered for ABB’s S800 I/O system. Featuring intrinsic safety on all channels, it is designed for hazardous area applications, providing reliable 0–20 mA and 4–20 mA outputs for driving Ex-rated actuators such as current-to-pressure converters. Compact yet robust, this module ensures precise current regulation, making it suitable for SCADA, distributed control systems (DCS), and advanced process automation.
Key Features
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Intrinsic Safety: Integrated IS protection allows direct connection to hazardous area devices without external barriers.
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Multi-Channel Output: Eight fully isolated channels capable of delivering stable analog signals.
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Compact Footprint: Dimensions 45 × 102 × 119 mm, ideal for dense MTU cabinets.
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Flexible Integration: Compatible with TU890 (Ex) and TU891 (non-Ex) MTUs.
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High Reliability: Short-circuit proof current-limited outputs with fast 1 ms rise time.
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Industrial Certification: ATEX/IECEx Zone 2, cFMus C1 Div 2/Zone 2, marine approvals (ABS, BV, DNV, LR).
Technical Specifications
| Specification | Details |
|---|---|
| Channels | 8 analog outputs |
| Signal Range | 0–20 mA, 4–20 mA |
| Resolution | 12-bit |
| Isolation | All channels groupwise isolated from ground |
| Current Limit | 20 mA nominal, 22 mA max under overload |
| Output Load | <725 Ω at 20 mA, <625 Ω up to 22 mA |
| Accuracy | Typical 0.05%, Max 0.1% at 650 Ω |
| Temperature Drift | Typ. 50 ppm/°C, Max. 100 ppm/°C |
| Rise Time | 1 ms (10% to 90%) |
| Power Dissipation | 3.1 W |
| Current Consumption | +5 V Modulebus: 80 mA, +24 V Modulebus: 110–150 mA, +24 V External: 220–300 mA |
| LED Diagnostics | F(ault), R(un), W(arning), O(SP) |
| Hazardous Area Ratings | ATEX/IECEx Zone 2 with interface to Zone 0, cFMus C1 Div 2/Zone 2 |
| Operating Temperature | 0 to +55 °C (Vertical MTU mounting: max 40 °C) |
| Storage Temperature | -40 to +70 °C |
| Protection Class | IP20 |
Applications
Ideal for semiconductor manufacturing, chemical processing, petrochemical plants, and other environments requiring intrinsic safety and precise analog output control. Commonly used with Ex-rated actuators, pneumatic converters, and process valves.
FAQ
Q: Can the AO890 module operate independently?
A: No, it must be paired with TU890 (Ex applications) or TU891 (non-Ex applications) MTUs for proper functionality.
Q: What is the overload protection limit?
A: Each channel is current-limited to 22 mA, ensuring short-circuit protection without damaging connected devices.
Q: Is HART communication supported?
A: No, this module does not support HART or SOE features.
Comparable Modules
Compared to other S800 series analog output modules, AO890 is specifically designed for intrinsic safety in hazardous zones, offering compact installation and high accuracy for Ex-certified actuators.
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