1. If you want to use the inverter to drive the motor with a capacitor to improve the power factor, but the motor does not move, please explain the reason.
As a countermeasure, remove the capacitor and work to improve the power factor, and it is useful to connect an AC reactor to the input side of the inverter to improve the power factor.
2. How long is the life of the inverter?
Inverters are stop devices, but they also have consumable devices such as filter capacitors and cooling fans, and if they are regularly maintained, they can be expected to have a life span of more than 10 years.
3. There is a cooling fan in the inverter, what is the direction of the wind? What happens if a fan breaks?
For small capacities, there are also models without cooling fans. For models with fans, the direction of the wind is from the bottom up, so do not place machinery that interferes with suction and exhaust in the upper and lower parts of the area where the inverter is installed. Also, do not place heat-sensitive parts above the inverter. When there is a problem with the fan, the fan stops detecting or cooling the fan is overheated for maintenance
4. The filter capacitor is a consumable, so how to judge its life?
The capacitance of a capacitor used as a filter capacitor decreases over time, and the capacitance is measured regularly to determine the life of the capacitor when it reaches 85% of the rated capacity of the product.
5. Whether there is any restriction on the installation direction when installing the inverter.
It should be basically stored in the plate, but the problem is that the plate with a fully enclosed structure is large, occupies a large space, and the cost is relatively high. The measures include:
(1) The planning of the disc should be based on the heat dissipation required by the actual equipment;
(2) Use aluminum heat sinks, fin coolants, etc. to increase the cooling area;
6. What is the function of the inverter DC reactor?
Reduce the higher harmonic interference of the input current and improve the power factor of the input power supply.
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