PRODUCT DETAILS
RDCU-12C Genuine ABB Control Board
Part Number: 3AUA0000036521D
Product Overview
In ACS800 Motor Drive applications analogue and digital I/O channels are used for different functions such as control, monitoring and measurement purposes (e.g. motor temperature). To extend the I/O functionality of your ACS800 Drive the RDCU-12C provides additional analogue and digital I/O connections, relay outputs and more.
Please note that application software is not included, before the board can be used customers will need to obtain and install the required software.
Key Technical Features
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Original ABB Control Board – Factory Standard
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High-speed drive control processing
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Stable real-time motor regulation
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Multiple I/O and internal communication interfaces
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Designed for ABB drive system compatibility
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Industrial-grade PCB with long service life
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Supports continuous operation in harsh environments
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Drive Control Unit |
| Model | RDCU-12C |
| ABB Part Number | 3AUA0000036521D |
| Manufacturer | ABB |
| Function | Main control & logic processing board |
| Control Type | Digital drive control |
| Mounting | Internal drive installation |
| Communication | Internal ABB drive bus |
| Operating Environment | Industrial automation |
| Condition | Genuine New / Original |
| Application | ABB frequency drives & motor control systems |
Functional Description
The RDCU-12C functions as the central control brain of the ABB drive system. It performs:
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Motor control algorithm execution
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Speed, torque, and direction regulation
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Signal processing from sensors and I/O modules
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Drive communication coordination
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System diagnostics and fault management
By maintaining precise timing and stable signal output, the RDCU-12C guarantees accurate motor behavior, reduced vibration, and consistent production performance.
Typical Applications
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ABB AC Drives
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Industrial Frequency Inverters
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Motor Control Cabinets
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Automation Production Lines
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Conveying Systems
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Pump & Fan Control Systems
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OEM Drive Repair & Replacement
Advantages for Maintenance & Replacement
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Direct replacement for original RDCU-12C modules
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No programming required after installation (drive-dependent)
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Restores full drive functionality quickly
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Reduces downtime and maintenance costs
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Ideal for spare parts inventory
Why Choose This RDCU-12C ABB Control Board
✔ Genuine ABB original product
✔ Exact part number match: 3AUA0000036521D
✔ High compatibility with ABB drive platforms
✔ Stable long-term industrial operation
✔ Suitable for global industrial automation projects



