V5 series inverter
79
adjustment are defined in P7.01~P7.11. The relationship between reference and feedback are shown in Fig4-34, thereinto,
10V corresponds to 100% of reference and 20mA corresponds to 100% of feedback.
The aim of reference adjustment and feedback adjustment is to confirm the corresponding relationship and dimension of
unification, as shown in Fig.4-33.
If the motor’s speed is required to increases with the reference speed, this kind of control characteristic is called positive
characteristic. On the contrary, if the motor speed is required to decrease when the reference value increases, this control
characteristic is called negative characteristic.
The two close-loop characteristic can be set by P7.14, as shown in Fig4-35.
Fig.
Fig.
Fig.
Fig.4-34
4-34
4-34
4-34 Reference
Reference
Reference
Reference and
and
and
and
Fig.4-35
Fig.4-35
Fig.4-35
Fig.4-35 Close-loop
Close-loop
Close-loop
Close-loop adjustment
adjustment
adjustment
adjustment
anticipant
anticipant
anticipant
anticipant feedback
feedback
feedback
feedback
characteristic
characteristic
characteristic
characteristic diagram
diagram
diagram
diagram
After conforming the system, the procedure of setting close-loop parameters is shown below:
(1) Confirm the close-loop reference and feedback channel (P7.01, P7.02).
(2) The relationship between close-loop reference and feedback value (P7.06~P7.09) should be defined for close-loop
control.
(3) If reference and required motor’s speed is opposite, please set close-loop characteristic as negative to confirm close-loop
adjustment characteristic (P7.14=1), as shown in Fig4-35.
(4) Set the function of close-loop preset frequency (P7.16
~
P7.17).
(5) Set close-loop filter time, sampling cycle T, limits of deviation and gain coefficient (P7.03, P7.04, P7.12, P7.13).
0
0
0
0
:
Close-loop
Close-loop
Close-loop
Close-loop control
control
control
control is
is
is
is disabled
disabled
disabled
disabled
1
1
1
1
:
PI
PI
PI
PI close-loop
close-loop
close-loop
close-loop control
control
control
control is
is
is
is enabled
enabled
enabled
enabled
0
0
0
0
:
Digit
Digit
Digit
Digit input
input
input
input
1
1
1
1
:
VI
VI
VI
VI ((((0
0
0
0
-
10V
10V
10V
10V))))
2
2
2
2:::: CI
CI
CI
CI....
0~10V voltage or 4~20mA current reference, for speed close-loop, analog reference of 10V corresponds to the
synchronized speed of the motor’s max output frequency
.
0
0
0
0
:
VI
VI
VI
VI ((((0
0
0
0
-
10V
10V
10V
10V))))
1
1
1
1
:
CI
CI
CI
CI
2
2
2
2
:
VI
VI
VI
VI +CI
+CI
+CI
+CI
3
3
3
3
:
VI
VI
VI
VI ---- CI
CI
CI
CI
4
4
4
4
:
Min
Min
Min
Min
{
VI
VI
VI
VI,,,, CI
CI
CI
CI
}
5
5
5
5
:
Max
Max
Max
Max
{
VI
VI
VI
VI,,,, CI
CI
CI
CI
}
P7.00
P7.00
P7.00
P7.00
Close-loop
Close-loop
Close-loop
Close-loop function
function
function
function selection
selection
selection
selection
Range
Range
Range
Range
:
0
0
0
0,,,, 1
1
1
1
0
0
0
0
P7.01
P7.01
P7.01
P7.01
Reference
Reference
Reference
Reference channel
channel
channel
channel selection
selection
selection
selection
Range
Range
Range
Range
:
0
0
0
0,,,, 1
1
1
1,,,, 2
2
2
2
1
1
1
1
P7.02
P7.02
P7.02
P7.02
Feedback channel selection
Range
Range
Range
Range
:
0~6
0~6
0~6
0~6
1
1
1
1
P7.03
P7.03
P7.03
P7.03
R
R
R
Reference
eference
eference
eference filter
filter
filter
filter
Range
Range
Range
Range
:
0.01~50.00S
0.01~50.00S
0.01~50.00S
0.01~50.00S
0.50S
0.50S
0.50S
0.50S
P7.04
P7.04
P7.04
P7.04
Feedback
Feedback
Feedback
Feedback filter
filter
filter
filter
Range
Range
Range
Range
:
0.01~50.00S
0.01~50.00S
0.01~50.00S
0.01~50.00S
0.50S
0.50S
0.50S
0.50S