During the use of frequency converters, "fault" alarms often occur—some stem from the converter itself, while others arise from improper operation. Incorrect usage not only hinders optimal performance but may also damage the product and connected equipment. As a company with over a decade of expertise in the frequency converter field, Nanjing Oulu Electric is well aware of this. Therefore, the company mandates that every after-sales staff member must guide customers on proper frequency converter usage when addressing reported "faults" or performing on-site service.

On October 29th, an environmental protection equipment manufacturer reported an "intermittent shutdown fault" occasionally occurring in their CNC lathe's frequency converter. However, when the converter was sent to the factory for inspection, no issues were found. Subsequently, after-sales personnel visited the site to investigate. They meticulously checked all wiring, potential interference sources, and related electrical components, conducting repeated tests under actual operating conditions. Eventually, they identified the root cause: an aging external relay connected to the frequency converter had developed intermittent contact failure.

Indeed, improper use of a frequency converter not only fails to leverage its superior functionality but may also damage the converter and connected equipment or cause interference. Therefore, our after-sales personnel must patiently guide customers on key usage precautions and how to diagnose and address common "faults." Customers have remarked, "This is true service—Oulu frequency converters excel not just in quality but even more in support!"