How to debug the inverter, how to debug the inverter

The commissioning of the inverter is mainly divided into the following aspects:

Hardware connection debugging: ensure that the power supply and control signals of the inverter are correctly connected, and the wiring of the inverter and the motor is correct.

Basic parameter setting: According to the actual motor parameters and load conditions, set the basic parameters of the inverter, including motor rated power, rated voltage, rated current, number of poles, etc.

Control mode selection: select the appropriate control mode according to the actual requirements, such as V F control, closed-loop control, vector control, etc.

Output frequency regulation: According to the load requirements, adjust the output frequency of the inverter to meet the load requirements.

Acceleration and deceleration time adjustment: Adjust the acceleration and deceleration time of the inverter according to the actual needs to achieve the best operation effect.

PID parameter adjustment: For the inverter with closed-loop control or vector control, the PID parameters need to be adjusted appropriately according to the actual load situation to ensure the stability and response speed of closed-loop control.

Check the protection settings: It is necessary to check the protection settings of the inverter regularly to ensure that the motor and inverter can be protected in time in case of sudden load changes or other abnormal conditions.

Debugging the inverter requires reasonable parameter setting according to the actual situation, and comprehensive consideration needs to be made according to the motor characteristics, load requirements and control requirements. At the same time, it is necessary to pay attention to the rationality and correctness of parameter settings to avoid equipment failure or unstable operation caused by wrong parameter settings. It is advisable to follow the operating manual or consult the advice of a professional in practice.

Here's how:Tools Raw materials: inverters, inverter manuals are different.

<>7. Click the run button. Finally, click the green button to set the parameters of the inverter.

The commissioning of the inverter needs to follow certain steps, and the following are the general debugging steps:

Make sure that the power supply and wiring are correct: check whether the power supply and wiring of the inverter are correctly connected and whether they meet the requirements of the electrical drawings.

Conduct a test run: Before a test run, you need to check whether the equipment has faults, such as mechanical faults, electrical faults, etc. After starting the equipment, observe the operation of the equipment, such as whether the operation is stable, whether the noise is normal, etc.

Adjust the speed of the motor: According to the operation conditions and requirements of the equipment, adjust the speed of the motor, which can generally be adjusted by the speed setting key or adjustment knob on the inverter panel.

Carry out load test: add the load to the equipment for testing, and observe the operation of the equipment, such as the impact of load changes on the equipment.

End of commissioning: After the commissioning is completed, the inverter needs to be recorded and checked, such as recording the operating parameters of the equipment and checking whether the equipment is faulty.

It should be noted that the commissioning of the inverter needs to be operated by professional technicians, and the corresponding safety operation procedures should be followed.

CHINT frequency conversion regulation.

1.Exterior and interior inspections of the drive, including wiring checks and pre-power-on checks.

2.Check whether the drawings are consistent with the internal components of the inverter.

3.Test the inverter before powering on.

4.Transformer primary side insulation measurement.

Second, the inspection after sending the control power to 380V.

1.Verify the inverter status.

2.Measurement of various supply voltage values.

3.Check that each component is in good condition after powering on.

4.Read the raw data in the inverter.

5.Preset inverter parameters according to the on-site motor and load conditions.

6.Cooling fan steering.

3. Inverter air boost test.

2.Put the inverter in open-loop test mode and set the appropriate parameters.

3.Connect the incoming cable of the inverter. The cable on the output side of the inverter is not connected.

4.Push the high-voltage cabinet to the test position, close the switch, and simulate the high-voltage signal from the inverter side.

5.The user sends it to the easy-to-sell industrial control inverter. Note: Due to the large excitation inrush current of the incoming isolation transformer, the incoming switch may trip, and the quick-break multiple of the high-voltage cabinet should be appropriately amplified at this time. Generally, it is 8-10 times the input current of the primary side of the transformer.

6.After the high voltage is sent, check whether the voltage displayed on the panel is consistent with the actual voltage and whether the frequency is positive.

7.The inverter is activated from the inverter's operating panel and the corresponding voltage waveform is recorded at different outputs.

8.Disconnect the high voltage again and prepare to run with the motor.

There is also the simplest method, just that is the more professional people to do the debugging, the basic methods and steps of the inverter debugging are as follows: the power input terminal of the inverter is connected to the power supply through the leakage protection switch; Ground the ground terminal of the inverter; Confirm whether the voltage and frequency level of the inverter brand label is consistent with the power grid, and send power after it is correct; The main contactor is engaged, the fan is running, and the input power supply voltage is tested with the AC file of the multimeter to see if it is within the standard specification; Familiar with the operation keyboard keys of the inverter; Run the inverter to 50Hz to test the three-phase output voltage balance of the inverter U, V and W; After the power is off and there is no display at all, connect the motor cable. Frequency converter (

Hello, the first one is to input the parameters of the motor into the inverter, adjust the acceleration and deceleration time appropriately, determine the control mode, local or remote, and then the given mode. If the water pump is pumped, the parking mode should be adjusted according to the actual situation, and the water hammer problem should be paid attention to if the pump is fed upward. Adjust the parking method to ramp parking.

That's it.

Look at the manual, it's not difficult, connect the wire, look at the driving mode and frequency input mode, change the acceleration and deceleration time, ask for fast and then change the maximum frequency, a little difficult to get a few speeds, and then the difficulty is communication!

Shenzhen Jingzhan Da**LG inverter, Shenzhen Sifang inverter, Weilun touch screen and eview touch screen!

If you use the inverter itself to control the frequency, you need to use the internal PID control, I don't know what brand of inverter you use. Our company uses ABB, which is mainly used for community water supply. If the parameters are set according to the parameters of the inverter PID group, you can set them.

There are detailed instructions in the manual. Other drives are similar. Generally, to control the PID adjustment of the water pump, what is needed is to set the three sets of parameters of PID, and after these three sets of parameters are set, the acceleration and deceleration will be determined, but this parameter generally needs to be adjusted on the spot to achieve the optimum.

Already have an electrical cabinet? Debugging according to the drawings!!

The debugging steps are as follows: connect the power input terminal of the inverter to the power supply through the leakage protection switch; Ground the ground terminal of the inverter; Confirm whether the voltage and frequency level of the inverter brand label is consistent with the power grid, and send power after it is correct; The main contactor is engaged, the fan is running, and the input power supply voltage is tested with the AC file of the multimeter to see if it is within the standard specification; Familiar with the operation keyboard keys of the inverter; Run the inverter to 50Hz to test the three-phase output voltage balance of the inverter U, V and W; After the power is off and there is no display at all, connect the motor cable. Variable-frequency drive (abbreviation:

VFD), also known as variable frequency drive or drive controller, can be translated as inverter (the same English as inverter). Inverter is a kind of adjustable speed drive system, which applies variable frequency drive technology to change the frequency and amplitude of the working voltage of the AC motor to smooth the control. Here are a few steps you should take to get started:

1. No-load power-on inspection of the 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 protection switch. 3. Check whether the factory display of the inverter display window is normal, if it is incorrect, it should be reset, otherwise it will be returned.

4 Familiarize yourself with the operation keys of the inverter. General inverters have run, stop, prog, datapenter, up, and down") and so on, and the definition of the operation key of different inverters is basically the same. In addition, some inverters also have monitoring.

1.First, the power supply of the inverter is rolled into the terminal through the leakage protection switch and connected to the power supply, and then the grounding terminal of the inverter is grounded.

2.Confirm whether the voltage and frequency level of the inverter name label is consistent with the power grid, and start power transmission after it is correct.

3.When the main contactor is engaged and the fan is running, use a multimeter AC to test whether the input supply voltage is within the standard specification.

4.Set the working frequency of the inverter to 50Hz, measure the output voltage balance of the U, V and W phases of the inverter, and connect the motor line after the power failure is not displayed at all.

The commissioning of the frequency converter usually consists of the following steps:

Installation and wiring: Install the device according to the inverter's instructions and connect the motor to the inverter's output port.

Adjust the control stool system: according to the specific application requirements, adjust the control mode of the inverter, such as V F control, vector control, etc.

Adjust the operating state: Adjust the operating status of the inverter according to the actual situation, such as adjusting the speed, load, etc.

Detection and adjustment: After the commissioning is completed, the output voltage, current, frequency and other parameters of the inverter are detected by the test instrument, and adjusted if necessary. Stove coarse or.

It should be noted that when debugging the inverter, it is necessary to read the manual of the equipment carefully and operate it under the guidance of professionals to avoid accidents.