A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
Introduction — Precision Analog Output for Industrial Control
The ABB 81AA02E is a high-performance analog output module engineered for process automation and DCS (Distributed Control System) environments. It offers accurate and stable analog signal generation for controlling valves, actuators, indicators, and other field devices. With its robust construction, full electrical isolation, and precise output performance, this module is ideal for critical industrial control applications requiring consistent, accurate analog outputs under demanding conditions.
Technical Specifications — Performance & Physical Profile
| Specification | Description |
|---|---|
| Module Type | Analog Output Module |
| Model / Part Number | 81AA02E / GJR2385200R1010 |
| Output Channels | 4 independent analog outputs (function units) |
| Signal Output Range | 0–10 V or current output –20 … 0 … +20 mA (nominal) |
| Isolation | Potential-isolated outputs, each channel isolated from the bus and from other outputs |
| Output Characteristics | Short-circuit safe; open-circuit proof; stable current output with load burden up to approx. 434 Ω |
| Power Supply | Supplied via system bus/backplane (24 V bus & 5 V logic supply) |
| Accuracy / Linearity | Linearity error typically within ±0.1% |
| Temperature Stability | Maintains stable performance within 0–70 °C operating range |
| Dimensions / Form Factor | Standard DCS module rack format, approx. 160 mm depth |
| Electrical Safety & Isolation | Full galvanic isolation for high noise immunity and safe separation between outputs and control bus |
