Precautions and daily maintenance of the inverter
Precautions for use of the inverter. l. The standard inverter equipment enters the path and establishes the admission criteria. Nowadays, there are many varieties of inverters, and various inverters are not common, which makes the preparation of materials difficult, and increases the difficulty of cost and repair. Therefore, it advocates the entry of standard frequency conversion equipment, establishes market access criteria and reduces the introduction of inverters. The brand variety reduces the cost of post-protection and repair. (1) Restricting the size of the brand. Restricting the size of the brand, such as the brand with low failure rate and reliable operation in recent years. (2) Standard introduction route
Standard introduction method, investigate the technical strength after-sales service of the manufacturer of imported equipment, and require the data to be properly equipped for the acceptance of newly introduced frequency conversion equipment In the future, there will be problems in protection. 2. Establishing the daily maintenance guidelines for the inverters. The standard for the management of the stabilizers is to be responsible for the daily protection and maintenance of the inverter equipment. The details of daily protection and maintenance can be divided into: (1) Operation data record, fault record:
Regularly check the far-end data of the inverter and motor, including the inverter output frequency, output current, and output voltage. , the internal DC voltage of the inverter, the temperature of the radiator and other parameters. Compare with reasonable data to facilitate early detection of hidden diseases. If the inverter trips, it must record the fault code and the operating conditions of the inverter when tripping, in order to detail the cause of the fault. (2) Daily view of the inverter:
Perform once every two weeks to check the three-phase voltage output of the inverter during operation, and pay attention to compare the balance between them; Phase output current, and pay attention to compare the balance between them; check the recorded ambient temperature, radiator temperature; check whether the inverter has abnormal vibration, sound, and whether the fan is running normally.