ABB YPQ201T-3ASD299001B2​ Printed Circuit Assembly for Drive Units

In a mining operation, a large 800kW ACS 800 drive powers a critical conveyor belt. The drive is equipped with an external Air Cooled Unit (ACU) to manage heat dissipation. A fault occurs, causing the ACU’s fan to run at full speed continuously, even when the drive is cool, wasting energy and creating excessive noise. The drive’s diagnostic system points to a fault in the ACU control circuit. Replacing the entire ACU is costly and time-consuming. A technician isolates the fault to a failed relay and damaged logic circuitry on the internal ACU control board. Sourcing a genuine YPQ201T 3ASD299001B2 PCB​ allows for a precise, board-level repair. Replacing this main logic board restores intelligent fan control—enabling variable speed based on temperature—and corrects the fault. This approach directly tackles the key industrial pain points of minimizing equipment downtime, reducing repair costs versus full assembly replacement, and restoring optimal, energy-efficient operation.