Regarding the dead zone issue of analog signals at the inverter input
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Dear fellow marine engineers, I have been working with Siemens and ABB frequency converters lately, and there are some issues regarding parameter settings that I haven’t managed to figure out； The input signals of Siemens’ MM430 frequency converter require a dead zone to be set, but this is not necessary for ABB’s units. Can I understand that it’s not necessary to set a dead zone for ABB’s units at all, rather than because of differences in usage? If it’s due to different methods being used, then when is it necessary to set a dead zone for ABB frequency converters? And why is it necessary to set a dead zone in inverters? Is it because the frequency conversion exhibits crawling when the input signal is “0”? Thank you
It is recommended that you consult the ABB manufacturer to ask why it is not available, or whether a fixed dead zone is used by default.