Why can t the Danfoss inverter VLT2800 102 parameter be adjusted when the parameter is not locked?

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102 is the rated power of the motor, first of all, it must be modified in the state of shutdown, secondly, the rated power of the motor and the rated power of the inverter should match, 102 parameters are also ranged, and the rated power of the motor can be modified within this range.

After cutting off the main power supply for a period of time, press and hold the [Quick Menu] +Change Data] button at the same time and turn on the main power again, let go of all the buttons, and the inverter can restore Yuanzhou to the factory setting value.

Based on the drive control technology based on the Profibus bus protocol, Danfoss drives integrate the Siemens PLC control system and the Danfoss FC360 series drives.

By compiling the PLC program to read and write the parameters of the PCD area of the inverter and write the parameters of the PCV area, the real-time control of the inverter and the monitoring of status information and fault information are realized.

Frequency converters that provide precise and effective motor control for a variety of industrial applications. Built-in features help users save installation space, set-up time, and routine maintenance. As a result, it is a powerful and versatile solution that increases productivity and cost-effectiveness.

1. First of all, the first step is to press and hold the three combination keys at the same time when the inverter is powered off, and then turn on the power switch of the inverter.

2. Then let go of the hand later, and the inverter will restore the factory parameters.

3. Then there is the Mitsubishi pulse inverter, the panel controls according to certain operation steps, selects the mode, switches the parameters, and then presses and holds the set button to restore the factory value, as shown in the figure below. Leak Yinqing.

4. Finally, it is determined that the parameters can be modified, and sometimes the inverter will set the parameter writing protection function in order to prevent the parameters from being changed randomly, and a certain password must be used to enter the modification.

Danfoss inverter VLT2800 parameters to restore factory settings:

Turn off the mains power for a while, press and hold the [Quick Menu] +Change Data] key and turn the mains back on. Release all buttons and the inverter can be restored to its factory set value.

Measure the three-phase input voltage of the power supply first, the normal voltage of the R, S, and T terminals is three-phase 380V, if the voltage is lower than 320V or the input power supply is out of phase, the external power supply fault will be eliminated. If the input power supply is normal, it can be judged that the internal voltage detection transformer of the inverter is faulty or the phase loss protection fault.

Since I don't know the model, I can only estimate that the PF is probably the abbreviation of "Poewer Failure", which probably refers to the power supply abnormality of the internal control circuit. The internal inverter control of the trigger circuit of the thyristor conduction, the realization circuit of the regulation law, etc., all need DC power supply, and the power supply is faulty, the entire inverter can not work, and the fault indication type will display "power failure."

Danfoss inverter VLT2800 parameters to restore factory settings:

Turn off the mains power for a while, press and hold the [Quick Menu] +Change Data] key and turn the mains back on. Release all buttons and the inverter can be restored to its factory set value.

First, measure the three-phase input voltage of the power supply, the normal voltage of the R, S, and T terminals is three-phase 380V, if the missing voltage is lower than 320V or the input power supply is missing or coincidental, the external power supply fault will be eliminated. If the input power supply is normal, it can be judged that the voltaic is the internal voltage detection transformer fault or phase loss protection fault of the inverter.

1. The first step is to press and hold the three key combinations when the inverter is powered off, and then turn on the power switch of the inverter. After letting go, the inverter will restore the factory parameters, as shown in the figure below. Then there's the Mitsubishi inverter.

The panel control system selects the mode and switching parameters according to certain operation steps, and then presses and holds the SET button to restore the factory value, as shown in the figure below.

2. Inverter panel operation. Press and hold the [quickmenu] and [+] keys at the same time to enter the parameter selection, press [+] to select the parameter 20, press the [changedata] button to enter the Sun San parameter, and press [+] the inverter potentiometer operation.

3. Panel control, as long as you modify the functions of No. 3 and No. 13, you can drag the motor to open, the panel button start, stop, and the "+ button to adjust the speed.

4. Danfoss inverter to set the overcurrent frequency step: enter the parameter menu. The only option to choose is the "motor current" item. Set the rated current of the motor in. Select the "Overload Protection" item. Select to enter the overload fixed value multiplier.

5. The steps to set the start and stop of the Danfoss inverter 2800 panel are as follows: press the "mode" and "esc" keys to enter the parameter setting interface. On the parameter setting page, use the down arrow or up arrow to find the STF parameter, and then press the ENT key to enter the parameter setting interface.

6. After cutting off the main power supply for a period of time, press and hold the [quickmenu]+[changedata] button at the same time and reconnect the main power supply, let go of all buttons, and the inverter can be restored to the factory setting value.

Parameter p6 20 is set to 2 power-off at the send point.

Initialize the parameters and re-debug according to the instructions.

Kiss! Hello, happy to answer your <>

The stopping time of the pro-Danfoss inverter VLT2800 is set as follows: the inverter generally has a deceleration and parking function (after the moving signal disappears, the inverter gradually reduces the output frequency according to the preset time to stop slowly). The inverter generally has the function of delaying parking when the power is off.

As for cutting off the total power supply of the inverter and then stopping it slowly as needed, I believe that the general inverter does not have this function, and there is no need to have this function 1, the operation instruction mode (keyboard, external terminals, communication virtuality, etc.) 2, the upper limit voltage 3, the lower limit voltage 4, the maximum frequency 5, the first acceleration and deceleration time 5, the motor rated voltage 6, the motor rated speed 7, the number of poles (or pole pairs) of the wheel motor 8, the rated power of the motor 9, the rated current of the motor. 10. Whether to prohibit reversal (some places must not be reversed) mainly set these parameters. Hope mine can help you <>

Do you have any other questions?

It is a protection state of the Danfoss inverter VLT2800 and indicates a fault signal, usually caused by a software error, hardware damage or a problem with the power supply. First of all, you should check whether the power supply of the inverter is normal. If the power supply is normal, you can check whether there is a problem with the software of the inverter and whether there is any damaged hardware.

If both the software and hardware are fine, then you can try resetting the drive, reprogramming the drive, and running it again. If none of the above methods can solve the problem, the inverter may need to be repaired to ensure that the inverter sail chain is working properly.