Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model (Order No.) | 3BHE012095R0002 |
| Model Designation | UAD141A02 |
| Manufacturer | ABB (now part of Hitachi Energy) |
| Product Type | 8-Channel Universal Analog Output Module (Basic Module) |
| System Platform | Symphony Plus / INFI 90 (UAD Series Rack Compatible) |
| Output Signal Types | 4-20 mA, 0-20 mA, 0-10 V (Software Configurable Per Channel) |
| Output Resolution | 16 Bits |
| Output Accuracy | ±0.1% of Full Span (at 25°C) |
| Maximum Load Capability | 750Ω (at 20mA Output) |
| Channel Isolation | Galvanic (Photoelectric), ≥500 VDC (Channel-to-Channel and Channel-to-Backplane) |
| Output Update Rate | Configurable, Minimum ≤100 ms |
| Protection Features | Independent Short-Circuit Protection and Auto-Recovery (Per Channel) |
| Installation Method | Plugs into UAD Series Rack (e.g., UAD140A Backplane) |
| Operating Temperature | 0°C to +60°C |
| Protection Rating | IP20 (For installation within a control cabinet) |
Main Features and Advantages
The ABB 3BHE012095R0002 sets itself apart with its exceptional versatility and robust drive capability. A significant advantage of the ABB UAD141A02 is its configurable output, allowing each of the eight channels to be independently set via software to provide either a 4-20mA current signal or a 0-10V voltage signal. This “one-card-fits-many” approach greatly simplifies spare parts management and is invaluable in plant upgrade scenarios where a single module can interface with a mix of modern and legacy equipment, eliminating the need to replace entire fleets of field devices.
The hard-nosed reliability of the ABB 3BHE012095R0002 stems from its industrial-grade design. Its ability to drive a 750Ω load ensures that signals remain strong and accurate even when transmitted over long distances to high-impedance valve positioners, a common source of signal degradation for weaker modules. Furthermore, the independent short-circuit protection on each channel is a critical safety feature; in the event of a wiring fault, the ABB UAD141A02 will limit current to prevent damage to itself and its neighbors, and automatically attempt recovery once the fault is cleared. This robust design dramatically reduces downtime and protects the module from the harsh electrical conditions often found in industrial environments. Combined with the diagnostic capabilities that report failures down to the specific channel, the ABB 3BHE012095R0002 provides both the muscle and the intelligence required for high-availability process control.
Application Field
The ABB 3BHE012095R0002 is the cornerstone of precise final control element positioning in industries where process stability is paramount. In the power generation sector, particularly in supercritical thermal power plants, the ABB UAD141A02 is deployed in critical closed-loop control applications such as boiler feedwater regulation, superheated steam desuperheating control, and forced draft fan vane control. The high output accuracy of the ABB 3BHE012095R0002 directly influences combustion efficiency and emission compliance, making it an essential tool for environmental and operational performance.
In the oil and gas industry, the ABB UAD141A02 is indispensable for controlling process parameters in refining and petrochemical operations. It is commonly used to drive high-speed control valves and variable frequency drives on critical pumps and compressors in hydrocrackers, catalytic reformers, and fractionation columns. The module’s high output drive capability and galvanic isolation make it particularly effective in environments with high electromagnetic interference, ensuring stable and reliable operation. Additionally, the ABB 3BHE012095R0002 finds extensive use in water and wastewater treatment for controlling chemical dosing pumps and large pump motors, and its dual-mode output allows a single module to interact with both old and new equipment from different manufacturers, making it a universal solution for complex, mixed-technology control environments.
