What if the frequency of Nanjing Continental Inverter ev5 10 cannot be adjusted?

Change it again. Nanjing Continental Inverter ev5 10 can't adjust the frequency, so change another one. When the frequency of the inverter reaches this frequency, it will not rise again, and the highest frequency of the inverter in Nanjing mainland is 5 10. If it's not high, of course it can't be adjusted. Nanjing Oulu Electric Co., Ltd. is a manufacturer of Nanjing Oulu frequency converters. The company is a national key high-tech enterprise dedicated to the research and development, production, sales and service of energy-saving and new energy power generation equipment such as frequency converters, small wind turbines and inverters.