Fujifilm inverters are an important device in the field of industrial automation and are widely used in a variety of motor control applications. However, in the process of use, the inverter sometimes has various faults, among which the ancient voltage fault is the more common one. This article will provide a detailed diagnosis of Fuji FUJI inverter ancient voltage faults** to help users better understand and solve this problem.
1. Overvoltage fault phenomenon.
Ancient voltage faults in Fuji FUJI inverters usually manifest as an abnormally high output voltage, even exceeding 150% of the rated voltage, resulting in overheating, insulation damage, or even burnout of the motor. In addition, there may be faults such as the motor not starting normally and suddenly stopping during operation. The occurrence of these problems often causes serious damage to production equipment and even threatens the life safety of operators.
2. Analysis of the causes of overvoltage faults.
There are a variety of causes of Fuji FUJI inverter voltage failure, mainly including the following aspects:
1.The input voltage is too high: when the power supply voltage exceeds the rated voltage range of the inverter, it will cause the DC voltage to rise abnormally after rectification, which will affect the normal operation of the inverter and cause ancient voltage faults.
2.Faulty drive circuit: The drive circuit of Fujifilm FUJI inverters consists of multiple components, and damage to any one component or deterioration of performance may cause an abnormal increase in output voltage.
3.Inverter failure: The inverter is an important part of Fujifilm inverters, and the switching status of multiple IGBT components inside it determines the waveform of the output voltage. When an IGBT component is abnormal, the output voltage waveform is abnormal, resulting in an ancient voltage fault.
4.Improper parameter setting: When using Fujifilm inverter, it is necessary to set the parameters of the motor accordingly. If the setting is improper, such as the acceleration time is too short, the carrier frequency is set too high, the motor parameters are not matched, etc., the output voltage may increase abnormally.
5.Poor heat dissipation: The heat dissipation of the Fujifilm FUJI inverter is essential for its proper functioning. If the cooling fan is damaged or the cooling channel is blocked, the internal temperature of the inverter will rise, which will affect its performance and may cause ancient voltage failure.
3. Overvoltage fault diagnosis method.
The following methods can be used to diagnose the overvoltage fault of Fuji FUJI inverters:
1.Observation method: By observing the appearance of the inverter and the working status of each part, it is preliminarily judged whether there is a fault. For example, check whether the input power supply is normal, whether the cooling fan is operating normally, and whether there is any abnormal smell.
2.Panel display method: The display information on the FUJI inverter panel allows you to understand the operating status and parameter settings of the inverter. If the display is abnormal, it can be preliminarily judged to be an ancient voltage fault.