User Manual
EM303B General Purpose Inverter
110
Frequency
Lower
Limit
Frequency
Terminal
Fucntion
Enable
Stop
Enable
Figure 7-12 Lower Limit Frequency Control
No.
Function
Range
Unit Default Type
F3-30
Open Loop Slip Compensation 0.00
～
200.00
%
100.00
●
F3-31
Parameter Copy
0: No Copy
1: Upload Parameter (From
Inverter to Keypad)
2:Download Parameter
(From Keypad to Inverter)
0
〇
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.
