ABB UAC318AE Module 3BHE019719R0101 for Industrial Drives

Application Scenarios:

In a mineral processing plant, a critical conveyor belt driven by a large 500 kW ABB ACS 800 drive suddenly halts. The drive cabinet displays a “SUPPLY” or “AUXILIARY VOLTAGE” fault. The maintenance team isolates the drive and begins diagnostics. Their investigation leads them to the auxiliary control section, where the ABB 3BHE019719R0101 (UAC318AE)​ module is located. Testing reveals that this module has failed to generate the required 24V DC control power, rendering the entire drive’s logic and gate drive circuits inoperative. Replacing this single, albeit complex, module with a genuine, factory-tested unit allows the drive to power up correctly. The conveyor is back online within hours, avoiding a prolonged production stoppage that would have cost tens of thousands per hour. This scenario highlights the 3BHE019719R0101’s role as the “heart” of the drive’s low-voltage power system; its failure incapacitates the entire drive, but its availability as a spare part is crucial for rapid, cost-effective repair.

Technical Principles and Innovative Values:

Innovation Point 1: Integrated, Multi-Rail Power Architecture.​ The ABB 3BHE019719R0101​ is not a simple power supply. It is an intelligent, multi-output converter designed to generate all the precise, clean, and isolated voltage rails required by a modern drive’s sensitive electronics from the high-voltage DC bus. This includes power for the microprocessor, memory, analog sensors, digital I/O, and, critically, the isolated gate drive power for the IGBTs. Its integrated design ensures proper sequencing and stability, which is more reliable than using multiple discrete external power supplies.

Innovation Point 2: Diagnostic and Protection Integration.​ The module is integral to the drive’s health monitoring system. It typically includes circuitry to monitor its own output voltages and the health of the incoming DC link. If an output voltage sags or is out of tolerance, the 3BHE019719R0101​ can signal the main control board, which will then initiate a controlled shutdown or generate a specific fault code (like “AUXILIARY UNDERVOLTAGE”). This proactive diagnostic capability allows for predictive maintenance and prevents catastrophic failures caused by unstable control power.

Innovation Point 3: High-Density, Optimized Design for Harsh Environments.​ Engineered for installation inside a drive cabinet, the UAC318AE​ module is built to withstand the challenging environment of power electronics: high temperatures, significant electrical noise (EMI), and vibration. Its components are selected and its layout is designed for high efficiency and thermal performance, ensuring long-term reliability. This robust, application-specific design is superior to generic power supplies that may not endure the same stresses.

Application Cases and Industry Value:

A wastewater treatment plant operates multiple large ABB ACS 800 drives on their critical aeration blowers. One drive began experiencing intermittent, unexplained trips that halted a blower, threatening process stability. The fault log pointed to sporadic auxiliary voltage warnings. Instead of replacing the entire drive control section at great cost and downtime, the plant’s electrical team, in consultation with ABB support, identified the ABB 3BHE019719R0101​ as the likely culprit due to aging capacitors. They sourced a certified refurbished module. During a planned maintenance outage, they swapped the old UAC318AE​ module. Post-replacement, the intermittent faults vanished completely. The drive’s reliability was restored to like-new condition. The chief engineer noted that this targeted component-level repair, focused on the 3BHE019719R0101. saved over 70% of the cost of a new control tower, minimized downtime to just a few hours, and extended the service life of the drive by another decade, demonstrating immense value in lifecycle management.

Related Product Combination Solutions:

The ABB 3BHE019719R0101​ operates within a subsystem. Key related components include:

ABB 3BHE019719R0101 / UAC318AE:​ The module itself. (Primary part in question).

ABB 3BHE024747R0101 UNS0880B:​ The main control board (e.g., a variant of the RMIO board) that this power module plugs into and supplies.

ABB 3BHE009017R0102 UFX3025A:​ A typical I/O extension module that would be powered by the 3BHE019719R0101.

ABB 3BHE037864R0101 UAC317AE:​ A closely related power supply or control module within the same drive family, often used for different voltage/current ratings.

ABB 5SHY3545L0006:​ An example of an IGCT or IGBT power semiconductor (the main switching device) whose gate drive unit is powered by this auxiliary supply.

ABB 3BHE039203R0101 GINT561A:​ A gate interface board that might be powered and interfaced through this system.

Drive Control Software (e.g., DriveWindow/Drive composer):​ Used to monitor drive parameters and fault logs, which are essential for diagnosing issues related to the 3BHE019719R0101​ module’s performance.

Installation, Maintenance, and Full-Cycle Support:

Installation & Commissioning:​ Replacing the ABB 3BHE019719R0101​ is a precise task. It requires the drive to be completely isolated and de-energized, with sufficient time allowed for the DC link capacitors to discharge fully (verified with a meter). The module is typically mounted on a larger control board (like an RMIO) via connectors and possibly screws. ESD precautions are mandatory. Installation involves carefully unplugging the old module, aligning the new one correctly, and securing it. No software configuration is typically needed for this hardware module, but upon power-up, the drive’s firmware should be allowed to perform its self-tests.

Maintenance & Fault Handling:​ The module itself has no user-serviceable parts. Maintenance involves ensuring the drive’s cooling system is functional to prevent excessive heat, which is the primary enemy of electronic components like this. If a fault related to the auxiliary supply occurs, diagnostics via the drive’s control panel or connected software are the first step. A multimeter can be used (by qualified personnel) to verify the absence of output voltages on the module’s test points as a confirmation. Replacement is the standard remedy.

Full-Cycle Support:​ We specialize in providing fully tested, genuine ABB 3BHE019719R0101 / UAC318AE​ modules. Each unit undergoes a rigorous refurbishment and testing process that includes visual inspection, cleaning, board-level repair of any faults, and a full functional test under simulated load conditions to verify all output voltages are within specification. We provide a comprehensive warranty and technical support to assist with compatibility verification and installation guidance. Our goal is to be your reliable partner for sustaining the operational life of your critical ABB drive assets.

Contact us for a certified and fully tested ABB 3BHE019719R0101 (UAC318AE) module and expert technical support for your drive repair needs.