INVT inverter high-temperature treatment tips

Create Date: 2024-8-30 12:03:23|Source: INVT/INVT

(1) The ambient temperature is high
INVT inverter high-temperature treatment tips
  Detection method:

The inverter is composed of countless electronic components, and a lot of heat will occur during its operation, and if the on-site ambient temperature is too high, it will also cause the inverter to report high temperature and shut down.

Open and close the door of the distribution cabinet, and compare the temperature rise of the inverter at the same time and under the same working conditions. If the operation time of the opening door is long or the fault is not reported, and the fault is reported for a short time when the door is closed and the carrier frequency operation is acquiesced, it is clear that the heat dissipation system design of the distribution cabinet is not good.

Whether the cooling fan in the cabinet of the inverter device is operating normally or rotating, resulting in the ambient temperature in the cabinet being too high.

Countermeasures:

(1) Lowering the temperature of the inverter location, such as installing air conditioners or fans.

(2) Properly reduce the carrier frequency and open the door of the distribution cabinet to operate within a short time.

(3) Correct the fan in the cabinet.

(2) The fan is abnormal

Detection method:

Whether the fan is stuck with foreign objects.

Plug in and unplug the fan from the end, and start the inverter again to check whether the fan is rolling.

In the operation of the inverter, use a multimeter to test the fan interface terminal, if there is a 24V output, it is clear that the fan is faulty. If there is no 24V output, seek the manufacturer's treatment.

Countermeasures:

Eradicate foreign bodies.

Replace the fan with the same specification.

How to remove the fan:

(1) Gently press the clip of the plastic fan cover to remove it.

(2) After lifting the fan, unplug the terminal of the fan to complete the disassembly.

(3) The radiator air duct is blocked

Detection method:

If the fan is rolled, and the shredded paper strip is held at the air outlet of the inverter, the air volume can be felt to be obviously small, and the air duct may be blocked; Check whether there are a lot of foreign objects such as cotton wool, yarn, dust, and oil in the radiator air duct blocking the radiator air duct.

Countermeasures:

Sort out foreign objects such as cotton wool, yarn, dust, and oil stains in the radiator.

Arrangement:

(1) Remove the fan.

(2) Use boring compressed air to sort out foreign matter from the direction of the fan device.

(3) Use a thin and hard object of appropriate length to sort out the dust between the heat sinks, and then blow the heat sink from the upper net with boring compressed air, and repeat many times.

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