Description
The ABB UAD206A101 (Part Number: 3BHE019958R0101 / PC Board: 3BHE019959P201) is a specialized control and interface module used within ABB’s Power Electronics ecosystem. It is primarily found in the UNITROL 6000 excitation systems and large-scale MEGADRIVE-LCI (Load Commutated Inverters). This module acts as a high-speed communication and signal processing bridge between the central processor and the power-stage peripherals.
Product Technical Description
The UAD206A101 is designed to handle the complex synchronization and distribution of signals required for high-power semiconductor switching. It often serves as a “Hub” or “Distribution” board within a control rack.
- Signal Conditioning: It receives control logic from the main processor (such as the PPC907BE) and conditions these signals for fiber-optic or galvanic transmission to gate drivers.
- Fiber-Optic Capability: The board is typically equipped with multiple optical transmitters and receivers to ensure noise-free communication in environments with high electromagnetic interference (EMI).
- FPGA Logic: Contains onboard programmable logic to handle time-critical tasks such as pulse-width modulation (PWM) or interlocking, offloading the main CPU.
- Redundancy Support: Specifically engineered to operate in redundant architectures where dual control paths are required for system stability.
ABB UAD206A101 3BHE019958R0101 3BHE019959P201
Product Datasheet (Parameters)
| Parameter | Specification |
| Product ID | 3BHE019958R0101 |
| PC Board ID | 3BHE019959P201 |
| Model Designation | UAD 206 A101 |
| Function | Control Interface / Signal Distribution Unit |
| Supply Voltage | 24V DC (±10%) |
| Power Consumption | Approx. 15-20W (dependent on fiber load) |
| Interface Types | Fiber-Optic (ST/SMA), RS-485, Parallel Bus |
| Operating Temp | -5°C to +70°C |
| Storage Temp | -40°C to +85°C |
| Humidity | 5% to 95% (non-condensing) |
| Country of Origin | Switzerland |
Technical Characteristics
- Galvanic Isolation: High insulation rating between the control logic and the field interfaces.
- Deterministic Timing: Ensures microsecond-level precision for firing pulses, critical for maintaining the power factor and reducing harmonic distortion in converters.
- Diagnostic LEDs: Features a comprehensive array of LEDs for visual confirmation of power, heartbeat, and active communication links on individual channels.
Common Questions & Answers (Q&A)
Q: What is the difference between the 3BHE019958 and 3BHE019959 numbers? A: 3BHE019958R0101 refers to the complete, tested assembly (Revision R0101), while 3BHE019959P201 refers to the physical Printed Circuit (P) Board layout used for that assembly.
Q: Can this board be used across different UNITROL versions? A: The UAD206 series is specific to the UNITROL 6000 and certain LCI applications. It is not compatible with the older UNITROL 5000 or UNITROL F series due to different backplane architectures.
Q: Does the UAD206A101 require software programming? A: While the board contains an FPGA with factory-loaded firmware, the functional logic is determined by the master controller. If replacing a board, ensure the revision (A101) matches exactly to avoid timing mismatches.
Q: How do I troubleshoot a “Communication Lost” alarm related to this board? A: First, inspect the fiber-optic cables for sharp bends or dust. Check the “RX/TX” LEDs on the front panel. if the “Power” LED is off, verify the 24V DC input at the backplane connector.
Similar Model Recommendations (8 Units)
- UAD206A102: A variation with different optical port configurations or signal levels.
- UAD207A101: A related interface board often used for auxiliary measurements.
- GCC960C103: The main control unit that typically communicates through the UAD206.
- PPC907BE: The PowerPC processor that provides the logic for the UAD206 outputs.
- PDD200A101: A pulse distributor board used in conjunction with the UAD series.
- 3BHE039017R0101: A high-performance controller board used in newer UNITROL systems.
- CIN185: A specialized interface board used in the same power stacks.
- 3BHE014105R0001: A pulse amplifier board used in legacy LCI systems.
