The logic control of the fan is implemented using conventional electrical components (relays, contactors, etc.) and digital display control instruments. It is not included in the control system, and the control system only completes the collection of fan detection data. The stability and reliability of the performance of the selected electrical equipment and digital display control instruments are not high, and the quality of temperature detection components and pressure detection instruments is also unreliable, which restricts the long-term reliable operation of the fan. Some irrelevant alarm messages are more, and the phenomenon of "the trip should not jump, the trip should not jump again" appears.
The power supply and the metering electricity share a power supply circuit. The power cables and signal cables are not completely separated and routed. There is no relay junction box in the middle of the cable. The operation box and the instrument box are not well closed. And cause the fan to trip.
The buttons, transfer switches, indicator lights, relays, contactors, etc. of the fan start and stop are all arranged in the instrument panel. Not only the operable space behind the panel is small, which affects the replacement of faulty components, but also the sealing protection is not done enough. In addition, due to the lack of detailed historical trend information, it is not easy to query, it is difficult to quickly determine the fault, affecting the rapid resolution of the fault.
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Jiangmen Liangtu Photoelectric Technology Co., Ltd. , https://www.liangtulight.com