Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 3BHB002953R0117 |
| Manufacturer | ABB |
| Product Type | SCA Board / Scaling & Communication Adapter Board |
| Series | SCA-2 (Scaling/Communication Adapter Family) |
| Typical Supply Voltage | 24 V DC (Backplane or Cabinet Powered) |
| Signal Processing Accuracy | Approx. ±0.1% (Scaling/Linearization Mode) |
| Communication Protocols (Variant) | RS-232, RS-485, Modbus RTU |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Mounting Type | Dedicated Drive/DCS Rack Slot |
| Protection Rating | IP20 (Cabinet Installation Only) |
| Dimensions (Approx.) | 230 mm x 110 mm x 34 mm |
| Weight (Approx.) | 0.35 kg – 0.55 kg |
| Certifications | CE, UL (Compliant) |
Main Features and Advantages
High-Precision Signal Conditioning: The ABB 3BHB002953R0117 provides precise scaling (±0.1%) and linearization of analog inputs such as 0-20mA or 0-10V signals. This high fidelity ensures that the control system receives accurate process data, which is vital for stable speed or torque regulation in drives and precision control loops in DCS applications. Its on-board anti-aliasing and filtering capabilities clean up noisy signals in environments with heavy electrical interference from variable frequency drives and power electronics.
Built-in Diagnostic and Protection: The ABB 3BHB002953R0117 features diagnostic LED indicators (Power, Fault, Communication) and robust opto-isolation. This isolation protects the sensitive logic side of the controller from voltage transients and ground loops common in power electronics, while the LEDs enable rapid troubleshooting without specialized tools. The board’s industrial design ensures stable operation within a temperature range of -20°C to +60°C, suitable for demanding control cabinet environments.
Dual-Function Flexibility and Seamless Integration: Depending on the specific hardware revision, the ABB 3BHB002953R0117 functions either as a pure scaling board or as a communication adapter. It can process analog values for closed-loop control or provide an RS-485 serial bridge for connecting external devices to the drive/controller. The ABB 3BHB002953R0117 integrates easily with ABB’s AC800M, ACS600, and ACS800 platforms, simplifying installation and reducing maintenance time. Its compatibility with Modbus RTU protocols allows for streamlined data exchange between different components of the automation system.
Application Field
The ABB 3BHB002953R0117 is deployed across a wide spectrum of mission-critical industrial applications, excelling in scenarios where signal integrity, precise analog processing, and robust communication are non-negotiable requirements. In the power generation sector, the ABB 3BHB002953R0117 is utilized in HVDC (High Voltage Direct Current) converter stations, where it resides within the valve base electronics (VBE) and is responsible for triggering pulse distribution, status monitoring, and fast protection functions. The control board’s stability directly impacts the safety and efficiency of DC power transmission.
In the metals and mining industry, the ABB 3BHB002953R0117 is deployed in mega-watt class rolling mill and winder main drives using multi-level or IGCT converters. The board participates in pulse synchronization, fault blocking, and cabinet-internal bus communication, ensuring reliable operation under high starting torque and significant grid disturbances. The ABB 3BHB002953R0117 also serves in oil and gas pipeline compressor stations and cement plant large mill and fan drive systems, where its ability to withstand electrical noise and cabinet temperature rise is critical for continuous operation. Additionally, the ABB 3BHB002953R0117 is often used as a direct replacement for aging SCA boards in legacy ABB systems, allowing plant operators to extend the life of their existing drive control infrastructure while benefiting from improved signal processing and diagnostics.
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