A5E03927689; 6SR0900-0FM00-0AM0; LDZ10501463; LDZ10501353; LDZ10501351 Air Filter
(A5E03927689; 6SR0900-0FM00-0AM0; LDZ10501463; LDZ10501353; LDZ10501351;). Siemens SINAMICS PERFECT HARMONY GH180 Drives are mostly air-cooled, and some high-power VFDs will use water-cooling. The most common method is air cooling. Air cooling, as the name implies, uses the cooling fan on the top of the VFD cabinet to use air circulation to bring the heat generated inside the VFD to the outside, so as to ensure that the temperature inside the VFD is stably maintained within the allowable range. The circulation mode of air-cooled frequency converter is divided into outer circulation and inner circulation. Outer circulation: Inhale air from the outside of the VFD, and then exhaust the air to the outside world. This method saves energy and does not need to install more air conditioners, but it cannot control the operating environment of the VFD. Dust, humidity and temperature are just the points that the VFD has higher environmental requirements; the other is the internal Circulation is to place the VFD in a well-closed room, and control the temperature of the VFD by adding an air conditioner. This circulation method fundamentally solves the influence of temperature, humidity and dust on the VFD, but the air conditioner consumes more energy. The power cannot be ignored either. At present, there are more applications of internal circulation. Compared with the power consumption of air conditioners, the life of the VFD is prolonged and the reliability is guaranteed. This is exactly what is most needed for the operation of the equipment. Regardless of the circulation method, ensure the ventilation of the VFD to effectively dissipate heat, protect the internal components of the VFD, and use the original filter.

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