Fuji Electric FVR-E11S-7EN

5-35
Note: Numbers marked # indicate the
setting of each function.
Direct frequency setting
at keypad panel
Process amount setting
at keypad panel
Setting selected at F01
Frequency setting 1
PID
calculator
Forward
operation
Reverse
operation
Frequency
command
Driving
part
Control
target
Signal
reverse
Signal
reverse
H21 (Setting signal switch)
Terminal 12
Terminal C1
＃0
＃16
＃1
＃3
＃2
E01 to E05 (Function) PID
control cancel
＃9
E01 to E05 (Function)
Frequency setting 1/2 switch
＋
－
＃1
＃2
H20 (Operation
selection)
H21 PID control (Feedback signal)
 Select the feedback value input terminal and
electrical specification of the terminal. Select
one from the table below according to the
specifications of the sensor.
Setting Selection item
0
Control terminal 12, normal operation
(voltage input 0 to +10V)
1
Control terminal C1, normal operation
(current input 4 to 20 mA)
2
Control terminal 12, inverse operation
(voltage input +10 to 0V)
3
Control terminal C1, inverse operation
(current input 20 to 4 mA)
Note) The feedback value of the PID control can
be input only in the positive polarity. The
negative polarity (0 to -10 Vdc, -10 to 0 Vdc,
etc.) cannot be input. Therefore the control
cannot be applied to reversible operation
using the analog signal.
No
r
m
a
l
o
p
e
r
a
t
i
o
n
I
n
v
e
r
s
e
o
p
e
r
a
t
i
o
n
100％
0％
0V
4mA
10V
20mA
Input
Feedback value
H22 PID control (P (P gain))
 Generally speaking, P: gain, I: integral time and
D: differential time are not used alone.
Functions are combined like: P control, PI
control, PD control and PID control.
 P action
An operation where there is proportional
relationship between the amount of operation
(output frequency) and deviation is called P
operation. Therefore the P action outputs an
operation amount proportional to the deviation.
However, the deviation cannot be eliminated by
only the P action.
Setting range: 0.01 to 10.00 times
Time
Devi-
ation
Amount
of
opera-
tion
 The P gain is a parameter which determines the
degree of response to the deviation of P action.
With a large gain, the response is quick but
hunting is likely to occur. With a small gain, the
response is stable but slow.
Time
Re-
sponse