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202301-13Working principle and application of Omron relay
Working principleWhen a certain voltage is added to both ends of the coil, a certain current will flow through the coil, resulting in electromagnetic effect. Under the action of electromagnetic force ···
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202301-12Delta PLC maintenance knowledge introduction
1. Delta PLC power-on running light is not on, ERROR flickers, the possible cause is: no program2. Delta PLC can not communicate with the computer, which may be: RS23 is bad3. If the power indicator o···
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202301-12Delta UPS uninterruptible power supply basic conditions
1. Visually inspect the UPS and battery (or other energy storage) equipment for obstructions and properly cool the surrounding area.2. Ensure that there is no abnormal operation or warning on the UPS ···
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202301-11What are the common faults of Advantech industrial computer?
1. Maintenance of chip-level motherboard, dealing with crash, startup without flash, power-off and other problems, and providing BGA service;2. Deal with the black screen and flower screen in the oper···
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202301-11Advantech industrial computer main features and use precautions
The main characteristics of Advantech industrial computer:1. Advantech industrial computer requires the ability to continuously work for a long time.2, the chassis has a special power supply, the powe···
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202301-10The correct maintenance method of Mitsubishi Frequency converter
In addition to the regular maintenance of the frequency converter module, we should regularly check the Mitsubishi frequency converter module, especially the maintenance of the cooling fan. Because of···
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