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Product Overview
The ABB UNS0881a-P (3BHB006338R0002) is a high-reliability circuit board module used primarily in ABB drive and power converter systems, particularly within the ACS600 and ACS800 series medium-voltage and high-performance industrial drives. This printed circuit board (PCB) serves a crucial role in managing control, signal processing, and interface functions between the control logic and power electronics.
As part of ABB’s highly engineered motion and drive solutions, the UNS0881a-P board is built with industrial-grade components to endure harsh conditions such as electrical noise, temperature variations, and mechanical vibration. It supports real-time communication and diagnostic feedback, contributing to the efficient operation and safety of ABB’s automation platforms.
Key Features
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Integrated signal and control processing capabilities
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Supports ABB drive systems (ACS600/ACS800 family)
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Optimized for high-performance motor control and diagnostics
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Reliable operation in high EMI environments
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Surface-mount industrial-grade PCB design
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Interfaces with analog/digital I/O and feedback systems
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Compact and modular construction
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Designed for extended operational lifetime
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Protected against reverse polarity and overvoltage events
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Tested to ABB’s stringent quality and environmental standards
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Circuit Board Module |
| Model Number | UNS0881a-P |
| Ordering Code | 3BHB006338R0002 |
| Function | Control, interface, and signal processing for drive systems |
| System Compatibility | ACS600, ACS800, and compatible ABB drive platforms |
| Board Type | Multilayer industrial PCB |
| Processor/Logic | Embedded DSP/microcontroller-based (model specific) |
| Input Voltage Range | 5 V / 12 V / 24 V DC (system dependent) |
| Communication Interfaces | Analog/Digital I/O, backplane bus, diagnostic ports |
| Operating Temperature | -10°C to +70°C |
| Storage Temperature | -25°C to +85°C |
| Humidity Range | 5% to 95%, non-condensing |
| Cooling Method | Convection (module dependent) |
| PCB Conformal Coating | Yes (for moisture and corrosion protection) |
| Dimensions | 120 x 90 x 60 mm |
| Weight | 0.25 kg |
| Mounting Type | Screwed/plug-in inside control cabinet or drive enclosure |
| Compliance | CE, RoHS, UL, ISO 9001 |
Industry Applications
The UNS0881a-P circuit board is used across a broad spectrum of ABB drive-integrated industrial solutions, ensuring safe, accurate control of rotating equipment in:
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Metals and Steel Industry: Motor control in rolling mills and process lines
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Oil & Gas: Drives used in compressor and pump systems
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Pulp & Paper: Motor-driven applications like calenders, winders, and paper machines
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Water and Wastewater: Pump and aerator motor management
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Marine Propulsion Systems: ABB propulsion converters and drive systems
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Mining and Cement: Conveyor systems, crushers, and mills requiring rugged drive control
Product Advantages
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Proven ABB reliability for long-term industrial operation
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Optimized for power converter environments with high EMI protection
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Compact modular design reduces cabinet space requirements
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Improved diagnostic capabilities for proactive fault detection
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Designed for extreme industrial environments
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Easily replaceable in field maintenance scenarios
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Enhances drive system efficiency and responsiveness
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Industrial-grade PCB coating prolongs service life in humid or corrosive settings
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Direct ABB support and documentation ensures hassle-free integration
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Compatible with legacy and current ABB drive systems
Frequently Asked Questions (FAQ)
1. What is the main function of the UNS0881a-P circuit board?
It processes signals and coordinates control operations between ABB drive system components.
2. Which ABB drives are compatible with this module?
It is typically used in ACS600, ACS800, and some customized ABB drive configurations.
3. Is the board coated for environmental protection?
Yes, it features conformal coating to protect against moisture, dust, and corrosion.
4. Can this board be field-replaced?
Yes, it is modular and can be replaced during maintenance without full system disassembly.
5. What power supply does it require?
It operates on low-voltage DC power (5 V / 12 V / 24 V) depending on the host system.
6. Are firmware updates required?
Generally no; however, some configurations may involve software matching or parameter syncing.
7. Does ABB offer replacements or spares?
Yes, the board is available through ABB’s spare parts and service channels.
8. Is this part RoHS compliant?
Yes, it complies with RoHS and other international environmental standards.
9. What’s the mounting method?
It is installed inside the drive or converter unit using screws or card slots.
10. What if the part is discontinued?
ABB typically offers form-fit-function replacements or upgraded equivalents.
Related ABB Control Boards and Modules
| Model | Description |
|---|---|
| UNS0882a-P | Advanced control board for high-speed applications |
| SDCS-PIN-205C | Power interface board for SDCS drives |
| SDCS-IOB-23 | Digital I/O board for signal interface |
| SDCS-POW-1C | Power supply module for SDCS system boards |
| 3BHB003230R0101 | Drive control processor board |
| SDCS-COM-81 | Communication interface board for serial/Ethernet drives |
Popular ABB Automation and Drive Components
| Model | Description |
|---|---|
| ACS880 | Universal industrial drive for complex motor control |
| ACS600 | Medium-voltage drive system for demanding industries |
| ACS800 | Drive for high-performance and regenerative applications |
| CP600 HMI | Industrial touchscreen operator panel |
| AC500 PLC | Scalable PLC platform for industrial automation |
| S800 I/O | Modular I/O system for distributed automation control |
