The new - generation general - purpose inverter G100 calculates the cumulative operating time of the fan to know the time for fan replacement. Based on a cumulative operating time of 50,000 hours for the fan, when the cumulative operating time of the fan reaches the set replacement warning level, a fan replacement warning message is displayed via the multi - function relay or the panel. G100 has improved its durability in harsh environments through upgraded design, materials, and manufacturing processes, thus meeting global standards and complying with the new UL 61800 - 5 - 1 certification standard. When the inverter output is disconnected and the motor is idling, regardless of the direction of the motor's idle rotation or the direction of the operating command, motor speed retrieval can be performed without interference, enabling stable restart. During power outages, the DC bus voltage can be maintained by using the regenerative energy of the motor. It is very convenient to connect PC Tools for controlling and monitoring G100. The 5mm I/O terminal spacing facilitates wiring. There are two Modbus communication connection methods: ˙RJ45 port ˙I/O (S +, S -)