What is the reason why the inverter used to run continuously and now it has become jogging?

The inverter used to run continuously, but now it becomes electric, probably because the effect of the inverter is upgraded, so it will become like this.

The inverter, which used to be in continuous motion, has now become jogging. and other reasons, it may be that you continue to produce faults and need to repair them.

This is very normal, it may be a failure of the relay inside, in this case the last one is replaced.

If it turns out to be running continuously, what is the reason? It is possible that the inverter is broken, in this case, there may be some fault.

Is your inverter activated terminal controlled or panel controlled? If the terminal is activated, check your start switch.

The inverter used to operate continuously, but now it has become jogging, indicating that there is a fault.

The inverter used to run continuously, but now it has become a jog, which is a problem with the power supply.

You can check it yourself, or clean up the dust of this inverter, which may have a certain impact on this.

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What is the reason why the inverter used to run continuously and now it has become jogging? Technology has improved, technology has developed, so it will be better. The inverter was also taken. Upgrade.

The inverter used to run continuously, but now it has become normal for the electric water heater.

There are two situations, first, there is no alarm fault on the inverter, that is, the inverter clicks to run, and then rotates and stops immediately, then it is necessary to consider whether there is a dry travel spine disturbance or abnormal line, resulting in the running signal is not good or the line contact of the set frequency is not good, or the voltage is low, after starting, it enters the undervoltage suppression, and the self-dismantling infiltration reduces the operating frequency, so there is only a running command and no running frequency;

In the second case, there is a fault alarm on the inverter, in this case, it is necessary to troubleshoot the problem in combination with the alarm recorded by the inverter.

That's because your load changes, and your load increases, and the motor will slowly return to its speed after the speed decreases.

Equipment function: frequency conversion energy saving, frequency converter energy saving is mainly manifested in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain amount of surplus. When the motor cannot run at full load, in addition to meeting the requirements of power drive, the excess torque increases the consumption of active power, resulting in a waste of electric energy.

The traditional speed regulation method of fans, pumps and other equipment is to adjust the air supply volume and water supply by adjusting the baffle plate and valve opening of the inlet or outlet, and its input power is large, and a large amount of energy is consumed in the interception process of the baffle and valve.

When using inverter speed regulation, if the flow requirement is reduced, the speed of the pump or fan can be reduced to meet the requirements. Take the inverter produced by Shanghai Zhengyi Information Technology Co., Ltd. as an example of energy saving applied to fan pump loads

The power of a centrifugal pump motor is 55 kilowatts, when the speed drops to 4 5 of the original speed, its power consumption is kilowatts, saving electricity, and when the speed drops to l 2 of the original speed, its power consumption is kilowatts, saving electricity.

This problem is that the motor stalls, the inverter has the function of inhibiting stall, increasing the percentage of inhibiting stall, of course, we also have to look at what causes it, if the inverter does not have jump protection, this is normal.

Your display frequency refers to the given frequency or feedback frequency, if the given frequency is unchanged is normal, at this time you have to observe the feedback frequency and the change of the operating current, the general speed decreases after the feedback frequency also decreases, and the running current increases, which indicates that it is the reason for the load, but also depends on your control mode is open-loop control or closed-loop state control or closed-loop adjustable control Do you have wind pressure requirements for the induced draft fan?

When the load changes, the torque of the inverter is increased or it can be controlled by vector.

You can try to shorten the deceleration time of the inverter, if it is not possible, then you should consider the hardware failure of the inverter itself or the influence of the harmonics of the inverter. If the motor inertia is large and the deceleration time is short, it is necessary to install a braking resistor or braking unit + braking resistor, otherwise, it is easy to damage the inverter module of the inverter. If it is affected by the harmonics of the inverter, you can try to install the MLAD-V-SC inverter output filter or the MLAD-VR-SC inverter output reactor.

1. Inverter deceleration timeInverter deceleration time refers to the time taken when the frequency output by the inverter to the motor is reduced from the current frequency to O. The inverter with strong functions is generally equipped with more than four sets of acceleration and deceleration time parameters for users to use, and which set of acceleration and deceleration time parameters plays a role in the start or stop stage of the motor, depending on the state of the control terminal. The acceleration and deceleration time can be set to 600s at the best, and the minimum can be set to Os.

In some inverter applications, the correct setting of acceleration time and deceleration time plays a key role. For example, in the lifting transmission system of lifting equipment, the deceleration time of the inverter is generally smaller than the acceleration moment; If the control system is in an emergency or manual state, the acceleration time and deceleration time of the frequency conversion data are smaller than the value of the normal state. Frequency converters.

Second, the harmonic generation mechanism of the inverter Because the rectifier part of the inverter is generally a three-phase full-wave uncontrollable rectification, the DC circuit uses a large capacitor as a filter. In this way, although the input voltage waveform on the grid side of the inverter is basically a sine wave, the input current is a pulsed charging current, which contains abundant harmonics. The waveform of the grid-side current of the inverter is determined by the total equivalent impedance of the line and the voltage at both ends of the main capacitor, and is also affected by the parameters of the diode rectifier itself.

In addition, the current size and waveform are closely related to the DC side voltage, which in turn fluctuates with the load. Therefore, it is difficult to quantitatively calculate the grid-side current of the inverter by means of analytical expressions, and it is not practical in engineering. For general analysis, a simplified approximation method can be used to calculate the calculation.

The frequency settings do not match your existing operation and should be set again.

If the panel potentiometer cannot adjust the speed, just see if pressing the up and down buttons on the panel can change the frequency. If it can be adjusted, you can use the up and down keys to adjust the speed. Or change the settings to panel potentiometer speed regulation.

If neither, you should see if the settings are set to a given frequency source via communication. It can be reset as needed.

If all settings are fine, you should check for damage to the speed control element.

Summary. What is the reason for the sudden acceleration of the inverter during normal operation? How to fix it?

Hello dear, see if the frequency fluctuates, if it is, please check whether there is a problem with the signal given at the frequency, the potentiometer is broken or the external given voltage fluctuation is possible, and at the same time check whether the load inertia increases suddenly, if it is the cause of inertia, consider whether the parameters of the inverter are adjusted or consider installing a braking unit.

What is the reason for the sudden acceleration of the inverter during normal operation? How to fix it?

What is the antecedent cause of the fibrillary segment when the inverter is suddenly accelerating during normal operation? How to fix it? Hello dear, see if the frequency fluctuates, if it is, please check whether there is a problem with the signal given at the frequency, the potentiometer is broken or the external given voltage fluctuation has the possibility of destruction, and at the same time check whether the load habitual combustion land suddenly increases, if it is the cause of inertia, consider whether the parameters of the inverter are adjusted or consider installing a braking unit.

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In this case, it can be analyzed from the following five aspects: one is the problem of harmonic interference of the power supply, which leads to the malfunction of the inverter; The other is the problem of the parameter setting of the inverter itself, which needs to depend on the parameter setting of the inverter; The third is the hardware problem of the inverter itself, which requires the inverter manufacturer or a professional person to repair the inverter to confirm the inverter after system testing; fourth, whether there is a problem with the matching of the inverter and the motor; Fifth, there is a problem with the motor, or whether there is a poor contact with the line connection.

Frequency converters.

Dear, glad to answer for you! The inverter controls the motor to keep spinning, how to solve how long to make it turn: 1

First of all, pay attention to safety, it's more dangerous if you can't stop. Your device should not be a single device, which means that it should be linked with other devices, and the start command comes from other places such as host computer, PLC, etc. It is best to look at the drawings to understand that the start command and speed control command come from **, so that it is conducive to operation and maintenance.

You said that the governor will stop when it is adjusted to 0, but in fact, the inverter does not stop, but the motor stops. That is to say, the inverter drives the motor to start to meet two conditions: 1. The inverter's start command is given; 2. The speed control signal of the inverter has also been given.

In this way, the inverter can rotate with the motor! Stopping is also subject to these two conditions. Your current stop just doesn't have a given speed signal, so the motor doesn't rotate, but the start command of the inverter is still there.

This situation is more dangerous, that is, as soon as someone touches the governor motor, it will start immediately. It is recommended to study the drawings first.