UPS mode in an inverter refers to the Uninterrupted Power Supply mode, which is designed to provide backup electricity in case of a power cut. In UPS mode, the inverter immediately switches over to the backup power supply when there is a power cut, with a faster switching time of around 8-10 ms. This is faster than the switching time in normal mode, which is around 40-50 ms. However, the input voltage range in UPS mode is narrower, typically between 180V-260V, compared to 100V-280V in normal mode.
In summary, UPS mode in an inverter is a mode that provides backup power supply with a faster switching time in case of a power cut.
