High quality power supplies are essential in the R&D and production lines of electrical and electronic manufacturing companies, a frequency converter can simulate worldwide electric power (50Hz 60Hz) to test the appliances/machines work in their perfect circumstance. GoHz adopts a series of quality inspection steps to ensure the quality of frequency converter after manufacturing, here we will show you 10 steps to test the frequency converter.
Step.1 Power on GoHz 3-phase frequency converter, turn on the input switch, check the mainboard of the frequency converter see if there is any red LED indicator lighting up.
Step.2 Using a multimeter (DC voltage) to measure the DC voltage of the 3-phase driver boards, normally it's approx 4.2v.
Step.3 Waveform debugging, using a oscilloscope to measure the waveform of the 3 mainboards.
Step.4 Using voltage regulator to adjust the voltage to 380v slowly, measuring the voltage between mainboard and driver board is normal or not.
Step.5 Measuring IGBT voltage is 520v or not.
Step.6 Calibrate display voltage and actual output voltage are the same or not.
Step.7 Adjust the overload protection warning.
Step.8 Frequency converter commissioning finished, connect full load (heating tube) to each phase at the same time, aging time is 30 hours.
Step.9 Measure output waveform.
Step.10 Power on the frequency converter before packing, measure the input, output voltage, frequency, make sure everything is OK.
Related article: GoHz 10-20kVA 3-phase Frequency Converter Troubleshooting