The method of resetting the fault of the inverter

1. The working temperature of the inverter is high 1. Check whether the ambient temperature of the inverter is too high; 2. Check whether the cooling fan inside the device is working properly; 3. Check whether the ventilation pores and mask grilles are blocked; 4. Check if the load is too heavy. ...

Through the rational planning of the structure of the low-speed centrifuge, the hygienic dead angle can be effectively eliminated. The transition of the structural parts is smooth, and the surface is polished. External structural components, fasteners, and rollers are made of stainless steel. The housing is a clamshell type, which allows for thorough cleaning of the interlayer space of the centrifuge housing without the need for a bowl ...

Because the application method is incorrect or the setting environment is unreasonable, the inverter will simply malfunction and cause problems, or the expected operation effect will not be satisfied. In order to prevent problems before they occur, it is important to carefully analyze the cause of the problem in advance. ...

Installing a variable-frequency drive (VFD) on the power frequency motor can complete the accurate control and speed regulation of the motor, and improve the power and accuracy of the forward motor. However, if not properly equipped and used, it may cause the following hazards: ​ ...

1. The working temperature of the inverter is high 1. Check whether the ambient temperature of the inverter is too high; 2. Check whether the cooling fan inside the device is working normally; 3. Check whether the ventilation pores and mask grilles are blocked; 4. Check if the load is too heavy. ...

When the line power supply exceeds the driver's kV-A rating by 10 times, add a line reactor. A 3% impedance line reactor should be used to reduce power line transients caused by capacitor switching, line notching, DC bus overvoltage tripping, and inverter overcurrent and overvoltage conditions. Line...

1. No-load energizing test of inverter 1. Ground the grounding terminal of the inverter. 2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch. 3. Check whether the factory display window of the inverter is normal, if it is incorrect, it should be reset.

Frequency conversion governor is the power frequency power supply (50Hz or 60Hz) into various frequencies of communication power supply, in order to complete the variable speed operation of the motor equipment, during which the control circuit completes the control of the main circuit, the rectifier circuit converts the communication power into direct current, and the output input of the DC center circuit to the rectifier circuit ...

1. Confirm the location of the device Before the equipment switches on and off the power supply, it is necessary to confirm the location of the equipment, and generally require the equipment to be in a ventilated, boring, non-corrosive gas and dust-free place. 2. Equipment holder The fixed base of the switching power supply is fixed on the orientation of the equipment, and the general ...

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1. Speak before you start When it comes to faulty electrical equipment, you should not rush into action, but ask about the passage and phenomenon of the fault. For unfamiliar equipment, you should also understand the circuit principle and structural characteristics, and follow the corresponding rules. Before dismantling, it is necessary to fully understand each ...

(1) When the inverter is connected to the power grid of large-capacity power transformer (more than 500kVA), perhaps the same power transformer is connected with a thyristor converter without using a commutation reactor, or when there is a switching capacitor bank for power improvement in the same power grid, an AC reactor or DC reactor should be equipped.

When using an inverter, a leakage maintainer must not be used. This is a major criterion for the use of frequency converters. Some users choose the corresponding leakage maintainer for the inverter when using the inverter. *The result is: the inverter moves together ...

According to the statistical analysis of the frequency and shutdown time of the inverter's detailed common problems, the correction rate of the main power supply circuit accounts for more than 60%; The main operating parameters are not set properly, resulting in about 20% of common problems; Common problems with control circuit boards account for 15%; 5% of common problems are caused by incorrect operation and external anomalies ...

1. Detection of ordinary diodes Use the MF47 multimeter to measure, connect the red and black watch pens to the two ends of the diode, read the reading, and then adjust the watch pen to measure. According to the results of two measurements, the forward resistance value of the general low-power germanium diode is 300-500Ω, and the silicon diode ...

Because the touch of the network adapter is not good, perhaps due to disturbance and other problems, the DP network that has been used for a long time may show a "transient disconnection" situation, that is, it will be disconnected by an occasional moment, and it will soon recover normally. If OB86 is not downloaded, the CPU will stop during a transient outage. Now all over the option to download a ...

1. As soon as the inverter of the heat exchange station is opened, the pressure transmitter jumps randomly; 2. In the water supply controlled by the inverter, the pressure transformer is used as a signal to collect the pressure, and the pressure transformer is disturbed by the inverter; 3. When the inverter starts the motor, the voltage converter signal is unstable and beats violently; 4. Pressure transformer (4-20 ...

Before the asynchronous motor is equipped with an inverter, let's take a look at the three major types of mechanical equipment loads: 1. Constant torque load: such as conveyor belts and mixers; When the inverter drags a load of constant torque nature, the torque at low speed should be large enough and the overload capacity should be large enough. If you need ...

The DC reactor for the inverter is also called the flat wave reactor, which is connected in series in the DC bus (terminals P1 and P+). The main thing is to reduce the higher harmonic component of the input current and improve the power factor of the input power supply (to 0.95). This reactor can be used at the same time as the AC reactor, and the inverter has high power ...