6. How many meters below the highest installation elevation of the frequency converter in the plateau area?
Generally, the frequency converter is marked to be installed below 1000m above sea level
7. What is inverter overcurrent?
Overcurrent refers to the frequency converter overcurrent. That is, the output current of the inverter or the current of the DC circuit exceeds the rated value. For overcurrent protection, the inverter has been set before the factory, and the user generally cannot set it by himself.
8. What is inverter overload?
Overload refers to the overload of the motor. Since the motor capacity carried by the same frequency converter is not necessarily the same, the characteristics of the load carried by the motor are also different, so the overload protection is adjusted by the user according to the situation of the motor and the load.
9. Inverter overheating protection object is what?
The range of overheating protection is wide, and the protection content set by various inverters is not all. In summary, there are: high-power transistor overheating, cooling fan motor overheating and the ambient temperature is too high, overheating protection is also set before the factory,
10. Under what circumstances may the inverter appear overvoltage?
1. The power supply voltage is too high. 2. Slow down too fast.
11. What are the requirements for the physical environment of the inverter?
1. Operating temperature
2. Ambient humidity
3. Corrosive gases
4. Vibration and shock
5. The elevation of the frequency converter is more than 1000m below
12. What is the parallel operation of the inverter?
The parallel operation of the inverter is divided into two cases, that is, the parallel operation mode of a single small-capacity inverter and the operation mode of “one tow and more”.
Among them, the parallel operation of a single low-capacity inverter is suitable for the case that a single inverter cannot meet the actual capacity requirements of the inverter, and the operation mode of “one tow and more” refers to the mode in which a frequency converter drags multiple motors.
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