The inverter is a high-tech intelligent product, in order to let it complete the specified control mission, it must be set parameters, otherwise, it is like the computer is not installed and used, and it cannot be operated normally. The parameter setting is carried out by the control surface of the inverter. The control panels of various types of inverters are not only different, but also have many similar places or coordination points. The points of cooperation are:
1. There is a working interface/parameter setting interface switch key, such as the "PRG" button of Fujifilm P11S series inverter, and the "function/data" key of Sunland SBl2 series inverter. The first thing that appears after the inverter is powered on is the working interface, which can be switched to the parameter setting interface by pressing the switch button.
2. There are increase keys "∧" and decrease keys "∨", and most inverters also have shift keys """. The "∧" and "∨" keys are used to increment or decrement the code number when selecting the function code (parameter number). It is used to increase or decrease the value when modifying the parameter value; The "" key is used to select the "bit" to be modified when modifying the parameter value.
3. There is a recognition key, after selecting the parameter code, press the recognition key to enter the parameter value modification law, and press the recognition key to save the modified value at the end of the modification.
4. Both have one or two LED displays, or one LED display plus one LCD display. As long as the inverter of a display, in the parameter setting shape, the parameter code is displayed first, and then converted to the display parameter value after pressing the recognition key; There are two displays, one for the parameter code and one for the parameter value.
5. There is a forward rotation "FWD" button and a rotary "REV" button, which are used to start forward rotation or rotation; However, some inverters only have a working "RUN" button, which is determined by external power.
6. There is a curb "STOP" button. After the above buttons, you can set the parameters or start the inverter to work by connecting the introduction of the inverter.
Figure 3 is a fuss diagram of Fujifilm P11S series inverter and the key display related to parameter setting, in which the "FUNC/DATA" key has the function of acknowledging and saving data; The "RESET" button is the reset key, and the inverter has a very alarm. It is necessary to press the reset button after the problem is relieved to start the work from the beginning.
Before the inverter works, the parameters in the attached table must be set, together with the requirements of the work control, such as closed-loop control, but also set the parameters related to the PID, these parameters will be introduced in a separate article.
All kinds of inverters have a "restore factory value" or "data initialization" parameter code, before the parameter setting starts, you can first go through the parameter code to initialize the parameter value, how, there may be a lot of parameter values just what we need, no need to modify, so as to simplify the setting process.
The inverter is adjacent to the power supply, motor and the required control terminal wiring, and after setting the parameters, it can be put into trial work through the forward or rotary button on the control panel.
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