First, the heat dissipation of the inverter is not good
In fact, we all know that too high a temperature has a damaging effect on any equipment, just like a human brain, too high a temperature will also burn out the brain, in fact, the same is true for inverters. As the temperature rises, the sensitivity of the semiconductor to temperature, the registration time and shutdown time of the inverter, as well as the waiting time caused by the delay circuit, will all change, and there is a relatively precise change law. When the temperature exceeds a certain limit, it will cause a lack of "waiting time", which will cause the output waveform of the inverter circuit to show "glitches", and eventually cause the inverter to be damaged due to straight-through.
However, as far as most equipment is concerned, the damage effect is often relatively slow, and the temperature when damaged is usually not very accurate, and the only one in the inverter inverter circuit, as soon as the temperature exceeds a certain limit, it will immediately lead to the damage of the inverter, and the temperature limit is often very **.
Second, the device environment is not accurate
The inverter is an all-power semiconductor device, so its requirements for the surrounding environment are the same as those of other power semiconductor equipment.
1. Ambient humidity: the relative humidity does not exceed 90% (no condensation).
2. Other conditions: there should be no direct sunlight, no corrosive gas and flammable gas, less dust, and an altitude of less than 1000m in the direction of the inverter.
3. Ambient temperature: -10 to 40 degrees is generally required. If the heat dissipation conditions are good (e.g. remove the case), the upper limit temperature can be increased to 50 degrees.
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Description of Delta inverter problems and solutions
Problem Description:
What is stall avoidance?
Solution(s):
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Solution to Delta inverter fault CE1 and CE2
Product range:
CP/CH/CT/C2000/C200/MS300/MH300/VE/ED/VJ
Problem Code:
CE1
Problem Description:
Communication is abnormal
Solution:
1. Communication error: RS-485 Modbus function code may be faulty
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Repair of Delta inverter problemsView items
Daily inspection item 1 of Delta's inverter problem repair:
Check whether there is any abnormal change in the sound of the motor during operation, including whether oscillation occurs during the operation of the motor.
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