The MDA-510 and MDA-550 simplify troubleshooting on single- and three-phase motor-drive systems by providing guided testing. The motor-drive analyzers help technicians quickly capture the most important measurements. The technician selects a test, and the step-by-step guided instructions show precisely where to make voltage and current connections. A preset measurement profile ensures that all the necessary data is captured for each motor-drive section, including from the input to the output, the DC bus and the motor itself. It can be used to measure motor-drive parameters such as voltage, current, DC bus voltage level and AC ripple, voltage and current unbalance and harmonics, voltage modulation, and motor shaft voltage discharges.