NRD108028 8RDB43655 SA43655.E

Description

NRD108028 8RDB43655 SA43655.E

NRD108028 8RDB43655 SA43655.E

Check if the motor reactor, transformer, etc. are overheated and have any odor; Is there any abnormal noise from the frequency converter and motor; Is the current display on the frequency converter panel too large or the current variation too large, and is the output UVW three-phase voltage and current balanced. 3、 Regularly maintain and clean the cooling air duct and internal dust of the air filter. Check whether screws, bolts, and plug-in components are loose, and whether there is a short circuit between the ground and phase resistance of the input and output reactors. Normally, it should be greater than tens of megaohms. Check if there is corrosion on the conductors and insulators, and if so, wipe them clean with alcohol in a timely manner. If conditions permit, use an oscilloscope to measure the stability of each voltage output of the switching power supply, such as 5V, 12V, 15V, 24V, etc. Measure whether there is distortion in the square wave of each waveform of the driving circuit. Is the UVW phase to phase waveform a sine wave. Check if there are any signs of ignition on the contacts of the contactor, and if it is severe, replace it with a new product of the same model or greater than the original capacity; Confirm the correctness of the control voltage and conduct sequential protection action tests; Confirm that the protection display circuit is normal; Confirm the balance of the output voltage of the frequency converter when operating separately. It is recommended to conduct regular inspections, which should be conducted once a year. 4、 The replacement of spare parts for frequency converters consists of various components, some of which gradually degrade and age after long-term operation, which is also the main reason for frequency converter failures. In order to ensure the long-term normal operation of the equipment,

MHD115C-024-PP0-BN
MHD115C-024-NP0-BN
MHD115C-024-NG0-AN
MHD115C-024-PG1-AN
MHD115C-024-NG1-AN
MHD115C-024-NG0-RN
MHD115B-024-NG0-BN
MHD115C-024-NG0-BN
MHD115C-024-NG1-BN
MHD115B-058-NP0-AN
MHD115B-058-NG0-AN
MHD115C-024-PG1-BN
MHD115A-058-PP1-BN
MHD115B-024-PG1-AN
MHD115A-058-NP0-BN
MHD115A-024-PP0-AN