What should be paid attention to when the frequency converter is not used for a long time?
1. The electrolytic capacitance will reduce the capacitance value and even lead to electro-hydraulic overflow, which will cause the printed circuit board to be corroded.
2. If the cooling fan is not used for a long time, the lubricating oil of the bearing may dry up, which will affect its service life.
3. For long-term inverter, use adjustable power supply to charge and discharge several times every six months.
