Xinje VH6 Series User Manual

139
differential.
Parameter
Name
Range
PA-10
Proportional gain P
0.0~100.0
PA-11
Integral time I
0.01s~10.00s
PA-12
Differential time D
0.000s~10.000s
Proportional gain P:
It determines the regulation intensity of the whole PID regulator. The greater the P is, the greater the regulation
intensity is. The parameter 100.0 means that when the deviation between the PID feedback quantity and the
given quantity is 100.0%, the adjustment amplitude of the PID regulator to the output frequency command is
the maximum frequency.
Integral time T:
Determine the intensity of integral regulation of PID regulator. The shorter the integration time, the greater the
adjustment intensity. The integral time means that when the deviation between PID feedback and given quantity
is 100.0%, the integral regulator continuously adjusts the time and the adjustment quantity reaches the
maximum frequency.
Differential time D:
Determine the strength of PID regulator deviation change rate. The longer the differential time is, the stronger
the regulation is. Differential time means that when the feedback value changes by 100.0% in this time, the
adjustment value of differential regulator is the maximum frequency.
Parameter
Name
Range
PA-13
PID parameter switching condition
0: Do not switch
1: Switch through X terminal
2:Switch automatically according to
deviation
3:Switch automatically according to the
operation frequency
PA-14
PID parameter switching deviation 1
0.0%~PA-15
PA-15
PID parameter switching deviation 2
PA-14~100.0%
In some applications, a group of PID parameters can not meet the needs of the whole operation process, so
different PID parameters need to be used in different situations. The parameters can be switched through the X
terminal (function 35) of the multi-function terminal, or according to the deviation.
(1) Switch through multi-function terminal X
When switching through the function 35 of the multi-function terminal, the terminal signal off corresponds to
the first group of PID parameters, and the terminal signal ON corresponds to the second group of PID
parameters;
(2) Switch automatically according to deviation
When the absolute value of deviation between given and feedback is less than PID parameter switching
deviation 1 (PA-14), the first group of PID parameters is selected for PID parameters; When the absolute value
of deviation between given and feedback is greater than PID switching deviation 2 (PA-15), the second group of
PID parameters is selected. When the deviation between given and feedback is between switching deviation 1
and switching deviation 2, PID parameters are linear interpolation values of two groups of PID parameters, as
shown in the figure below.

Xinje VH6 Series Specifications

General

Brand	Xinje
Model	VH6 Series
Category	Media Converter
Language	English