User Manual of EM730 Series Inverter will not be switched, and the first group of parameters (F09.05 to F09.07) will prevail; when the As described in the table, when the function code F09.11 is set to 0, the PID parameters function code is set to 1, the PID parameters will be selected according to the status of the input function “43:
PID parameter switching”; when the function code 2 is used, the PID parameters will be selected according to the absolute value |e(k)| (=|setting-feedback|) of the current deviation and the relationship between the function codes F09.12 and F09.13, or the linear difference may be used; when the function code 3 is used, processing is similar to that of the option 2, the PID parameters will be selected according to the percentage of the current output frequency to maximum frequency |P| = (output frequency/maximum frequency * 100%) and the relationship between the function codes F09.12 and F09.13, or the linear difference may be used.
In the case of “F09.12≤|e(k)|≤F09.13”, the current PID parameters are obtained through linear interpolation of the first and second groups of parameters. The specific principle is shown by the intermediate segment in Fig. 9- 28 242 |e(k)| The second group of parameters Middle According to the deviation, linear interpolation is performed based on the two groups of parameters. 3 |P|~F09.12/13 PID parameters are automatically switched by frequency. |P| The first group of parameters |P|> F09.13 The second group of parameters Middle According to the frequency, linear interpolation is performed based on the two groups of parameters.