The servo motor industry faces a common and frustrating problem that plagues many manufacturers and traders: the factory pass rate of servo motors often reaches 99%, a figure that seems reassuring during production, but the on-site failure rate at customer locations surges to as high as 5%. This huge gap not only leads to increased after-sales costs, damaged brand reputation, and strained customer relationships but also wastes valuable resources in rework and replacement. The root cause does not lie in the motor itself—most servo motors are manufactured to strict quality standards—but in the limitations of ordinary regulated power supplies used in factory testing. These conventional power supplies can only output pure 50Hz sine waves, which are far from simulating the complex and unstable conditions of real-world power grids, such as grid harmonics, sudden voltage sags, and three-phase imbalance that frequently occur in industrial environments.

To solve this critical pain point, we recommend our high-performance programmable AC power supply, specifically designed to meet the rigorous testing needs of industrial servo motor factories. It adopts advanced high-precision digital SPWM (Sinusoidal Pulse Width Modulation) inverter technology, ensuring a waveform distortion rate of ≤0.3%—a level of precision that guarantees accurate simulation of real grid conditions. The power supply supports superposition of 3-51st harmonics, fully complying with the GB/T 14549-93 standard for power quality, which is essential for reliable servo motor testing. When the load changes suddenly during the test process— a common scenario in actual motor operation—the voltage fluctuation is controlled within ≤±0.8%, and the response time is as fast as ≤0.5ms, effectively avoiding test inaccuracies caused by load changes. Additionally, it comes with built-in 200+ standard test procedures that meet JB/T 10183 and IEC 60034 standards, covering all key test items for servo motor factory inspection, eliminating the need for additional test equipment or custom programming.
The biggest advantage of this programmable AC power supply is its efficiency and cost-saving capabilities. One single device can complete the entire testing process of servo motors, from initial performance testing and load simulation to grid condition simulation, replacing multiple traditional testing tools. This integration not only improves testing efficiency by 52% but also simplifies the production line layout, reducing the need for redundant equipment and operational steps. For a single production line, this means a reduction of 3-5 personnel, significantly cutting labor costs while minimizing human error in the testing process. Most importantly, by accurately simulating real grid conditions during factory testing, potential hidden faults of servo motors are identified and resolved in advance, directly reducing the on-site failure rate at customer locations from 5% to 0.4%—a dramatic improvement that enhances customer satisfaction and reduces after-sales pressure for manufacturers and traders.
If you are struggling with the problem of high on-site failure rates of servo motors, which affects your brand credibility and increases operational costs, don’t hesitate to follow us and send us a private message. Our professional technical team will provide you with a free test solution evaluation, tailored to your specific production line scale, motor models, and testing requirements. We will help you optimize your servo motor testing process, improve production efficiency, and fundamentally solve the pain point of high on-site failure rates, bringing more stable profits and a better brand image to your business.
For more information, visit Jetronl’s website: https://www.jetronlinstrument.com/.