Motor repair shops often find themselves stuck between the demands of their customers and the complications introduced by modern motor technology. A common issue arises when a customer brings in a motor that has failed prematurely, not realizing that the problem is linked to the Variable Frequency Drive (VFD) integrated into their system. While VFDs enhance motor performance, they also cause harmful shaft voltages that can lead to premature bearing failure through arcing.
Repair shops, caught between the VFD and motor manufacturers who both refuse responsibility, often bear the cost of repair or replacement to keep their customers happy. To prevent these issues, many shops now install motor shaft grounding modules (MSGMs) on every motor that might be paired with a VFD. This proactive step significantly reduces the risk of future failures, saving time and money in the long run.
However, educating customers about the importance of MSGMs can be challenging. To assist, Aaki offers videos and brochures that help explain why bearing protection is crucial for VFD-driven motors. By using Aaki’s resources, repair shops can better communicate the value of MSGMs, ensuring longer motor life and happier customers.