Variable frequency drive (VFD) service

    Variable frequency drive (VFD) maintenance includes three essential steps that should be monitored at regular intervals.

     Cleanliness Variable frequency drive (VFD). Most of the standard NEMA1 (standard with side vents air flow in and out), or NEMA12 standards (dust) must be paid NEMA1 dust. Dust. Variable frequency drive (VFD) to cause the air flow is not easy. Degrade the heat sink and the cooling fan (circulating fan) Figure 1, the dust formed on the electronic device Knicks can cause the error. The dust absorbs the moisture, which encourages corruption as well.

 

Figure 1 shows the dust when the fan is blown Variable frequency drive (VFD).

 

 

         Air rifle, and the fan means to get good protection upright. The release of air pressure transducer. This option is available, under certain conditions. Air space structure consists of oil and water. 

       To be cooled with compressed air. We have to use oil, dry air. Alternatively, you can sometimes do more harm than good. This requires a special kind of strength in the air. Remains sensitive to static electricity. Spraying is not a static vacuum, or move to EDS has managed to reduce the buildup of static electricity. 

        The plastic begins to static electricity. EDS empty boxes and fan material. Plastic is not caused by static electricity. Cylindrical cans of compressed air, vacuum and pressure are not static. They can easily be by a company with experience in Static Control Components (static control device) purchased. 

         Check the moisture. Install the Variable frequency drive (VFD) on the wall is clean and dry storage, so that the water damage to components from moisture, dust, and the Variable frequency drive (VFD). What makes the system corrosion. As shown in Figure 2

Figure 2 shows the arrangement of the corrosion caused by moisture.

        To prevent condensation of water droplets, which radiates the heat, the heat (radiators) and can take up blocker. If an Variable frequency drive (VFD) is not used all day and installed in environments where condensation. You can change the default NEMA12 default view, and bake in a position to check the temperature. To determine the benchmark for the protection of Variable frequency drive (VFD).

      Check the joints tightly. Heating and vibrations occur. You can make calls. We were on the maintenance. This combination does not create an arch. Arc, UPS. September overload of stress. Thus, the fuse is to prevent damage to the equipment. Arch output of the Variable frequency drive (VFD). Overcurrent, or the dangers of electrical appliances.

Figure 3 shows the damage, loose connections at the input of the

Variable frequency drive (VFD).  is tight.

          Check the box. Since the process of monitoring mechanisms. Do not forget, the different components. UPS. The fan must be in compliance with the bearings are damaged or not be verified. This property is a fan or not connected. Unusual noises, and the hearts of rock fans and the move in Figure 4 and includes screws. To release or not. 

Figure 4 shows an object that is stuck in the fan.

 

              Check the capacitor.  Then check the voltage of the capacitor is also buses. They are filled with a solution. Loss or less. Two cases are caused by stress factors, electrical components and applying the wrong method. And at the same potential. When using the variable frequency drive (VFD). Increase the voltage drop across the circuit and it can be shown that the deterioration of the capacitor. This document is one of the capacitors. It acts as a filter gas-record energy provider in the home. Abnormal AC voltage of the capacitor voltage is always a problem.