A long time ago at ABC Co., a maintenance manager wrote maintenance procedures for the plant’s many motor drives. The procedures involve taking various voltage measurements and current measurements in addition to setting up an oscilloscope to compare waveforms.
The sheer complexity has resulted in many mistakes. And because each PM is time-consuming and tedious to perform, the motor PM intervals have been stretched well beyond the manufacturer’s recommendations. In many cases, the techs are skipping the more complex measurements.
How can this company make these PMs simpler and more efficient, while also ensuring the complete battery of tests is performed on the input, output, DC bus, and motor?
By investing in a motor drive analyzer. The best models have test menus; just select the test you want and be guided step by step to perform it. The device will also help with correct data collection, for example with preset measurement profiles. Look beyond PM to using features like reporting functions that will help with troubleshooting.