Chapter 6 Description of Function Codes
Function
code
Name
Description
(setting range)
Factory
Default
Change
F10.05
Proportional gain Kp1
0.0
~
100.0
20.0
※
F10.06
Integral time Ti1
0.01s
~
10.00s
2.00s
※
F10.07
Differential time Td1
0.000s
~
10.000s
0.000s
※
F10.05 (Proportional gain Kp1)
It decides the regulating intensity of the PID regulator. The higher the Kp1 is, the larger the
regulating intensity is. The value 100.0 indicates when the deviation between PID feedback
and PID setting is 100.0%, the adjustment amplitude of the PID regulator on the output freq-
uency reference is the maximum frequency.
F10.06 (Integral time Ti1)
It decides the integral regulating intensity. The shorter the integral time is, the larger the reg-
ulating intensity is. When the deviation between PID feedback and PID setting is 100.0%, the
integral regulator performs continuous adjustment for the time set in F10.06. Then the adjus-
tment amplitude reaches the maximum frequency.
F10.07 (Differential time Td1)
It decides the regulating intensity of the PID regulator on the deviation change. The longer
the differential time is, the larger the regulating intensity is. Differential time is the time within
which the feedback value change reaches 100.0%, and then the adjustment amplitude reac-
hes the maximum frequency.
Function
code
Name
Description
(setting range)
Factory
Default
Change
F10.08
Cut-off frequency of PID
reverse rotation
0.00
~
F00.03( maximum
frequency )
0.00Hz
※
In some situations, only when the PID output frequency is a negative value (AC drive reverse
rotation), PID setting and PID feedback can be equal. However, too high reverse rotation
frequency is prohibited in some applications, and F10.08 is used to determine the reverse
rotation frequency upper limit.
Function
code
Name
Description
(setting range)
Factory
Default
Change
F10.09
PID deviation limit
0.0%
~
100.0%
0.0%
※
If the deviation between PID feedback and PID setting is smaller than the value of F10.09,
PID control stops. The small deviation between PID
feedback and PID
setting will make the
output frequency
stabilize, effective for some closed-loop control
applications.
-174-
C
h
a
p
te
r
6
Peaco Support FC280 Series VFD User Manual
www.peacosupport.com [email protected] Free Shipping Worldwide Reliable Supplier
PEACO SUPPORT