Vaidnor VDF650 Series, Руководство пользователя

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Operation
,
Display and Application Examples VDF650 User Manual
-
64
-
4
.
8
.
5 Pulse Setting as the Frequency Source
In many scenarios
,
pulse input is used as the frequency source
.
The specifcations of pulse
signals are
:
voltage 9
–
30 V
,
frequency 0
–
100 kHz
.
Only DI5 can be used for pulse input
.
The relationship between pulse input from DI5 and
the corresponding setting is set in P4
-
28 to P4
-
31
.
The relationship is a two
-
point line
,
and
100
%
of pulse input corresponding setting corresponds to the maximum frequency of P0
-
10
,
as shown in Figure 4
-
22
.
Figure 4
-
22 Pulse setting as the frequency source
P4
-
00
P4
-
01
P4
-
02
P4
-
03
P4
-
04
.
.
.
.
.
30
.
P0
-
03
=
5
Running
frequency
Terminal
Function
code
Setting
value
DI1
DI2
DI3
DI4
DI5
.
COM
Frequency
source selection
OC output
P0
-
07
=
0
Pulse setting
Frequency
feature setting
P4
-
28 to P4
-
31
:
Relationship between
pulse setting frequency
and running frequency
* Only DI5 can be used for pulse input
.
4
.
8
.
6 Frequency Closed
-
Loop Control
The VDF650 has a built
-
in PID regulator
.
Together with the frequency sources
,
the PID
regulator can implement automatic adjustment of progress control
,
such as constant
temperature
,
constant pressure
,
and tension control
.
Figure 4
-
23 Automatic adjustment by PID regulator
P0
-
07
=
0
P0
-
27
=
0
P0
-
03
=
8
Frequency
source selection
PA
-
00
( PID setting
source )
Setting
target
Built
-
in PID
regulator
PA
-
01
(
PID digital setting
)
PA
-
03
(
PID action
direction
)
0 : Forward action
1 : Reverse action
PA
-
09
( PID deviation
limit
)
FA - 04
(
PID setting
feedback
range
)
PID 1
:
Proportional Kp 1
:
PA
-
05
Integral Ti1
:
PA
-
06
Derivative Td1
:
PA
-
07
PID 2
:
Proportional Kp 2 : PA - 15
Integral Ti2
:
PA
-
16
Derivative Td2
:
PA
-
17
PA
-
13
PA - 23
PA
-
24
PWM
drive
Execution
by motor
Object
PA
-
18
PA - 19
PA
-
20
Switchover
condition
Transmitter
detection
PA
-
12
(
PID feedback
filter time
)
PA
-
02
(
PID
feedback
source
)
PID
feedback
PID output
feature
PID output
frequency
U0
-
15
(
PID
setting
)
U0
-
16
(
PID
feedback )
PID
setting
P4
-
33
AI parameter
feature
preprocessing
P4
-
13 to P 4
-
32
(
Calibration
curve
)
Physical
quantity
Electric
signal
%
%
%
When PID frequency closed
-
loop control is implemented
,
P0
-
03
(
Main frequency source X
selection
)
must be set to 8
(
PID
).
The PID
-
related parameters are set in group PA
,
as shown
in Figure 4
-
23
.
The VDF650 has two built
-
in equivalent PID calculating units
.
You can set the features
,
such as adjustment speed and accuracy
,
for the two units separately based on the actual
conditions
.
Switchover between the two units can be implemented automatically or by
means of an external DI terminal
.