User Manual EM303B General Purpose Inverter Frequency Limit Frequency Lower Stop Terminal Fucntion Figure 7-12 Lower Limit Frequency Control F3-31=0 No copy. F3-31=1 Upload the parameters from the control panel of inverter to the EEPROM in keypad. Upon the completion of uploading, F3-31=0 is set automatically. F3-31=2 Download the parameters from the EEPROM in keypad to the control panel of inverter. Upon the completion of downloading, F3-31=0 is set automatically. The function may be applied to the setting parameter copy between different inverters, and to save the initial parameters defined by user.
When the parameters are edited by mistake, the inverter cannot work normally, please download the parameter to resetuser parameters. 8.5 F4 Group: General Parameters of PID PID control is a close-loop control mode, which feedbacks the output signal of control object in the system to PID controller, and then form one or more close-loops by regulating the output of controller after PID calculation. PID control is to make the output value of control object in the system identical to the setting target value. Based on the error between system setting target and feedback signal, PID controller computes the control variables with proportion, integration and differentiation.
The characteristics of each computing factor are as follows: Proportion (P): Proportional control is a simplest control mode. The output and input error signal of its controller is in proportional relation. The stable errors of system output exist in proportional control mode only. 110 Enable Enabl No. Function Range Unit Default Type F3-30 Open Loop Slip Compensation 0.00～200.00 % 100.00 ● Parameter Copy 0: No Copy 1: Upload Parameter (From Inverter to Keypad) 2:Download Parameter (From Keypad to Inverter) 0 〇 F3-31