Chapter 5 Function parameter
107
Ch
ap
ter 5
0
：
F0.13
、
F0.14
2
：
F7.10
、
F7.11
1
：
F7.08
、
F7.09
3
：
F7.12
、
F7.13
E1.50 Simple PLC run-time unit
S(seconds)
0
0
☆
H(hours)
1
E1.51
Multi-stage command 0
reference manner
Function code E1.00 reference
0
0
☆
Analog AI1 reference
1
Analog AI2 reference
2
Panel potentiometer setting
3
High-speed pulse setting
4
PID control setting
5
Keyboard set frequency (F0.01)
setting, UP/DOWN can be
modified
6
Analog AI3 reference
7
This parameter determines the multi-stage command 0 reference channel.
The multi-stage command 0 not only can select E1.00, but also there are a variety of other
options so as to facilitate switching between the multi-stage command and the other reference
manner.
5-2-17.
PID function
：
E2.00-E2.32
PID control is a commonly used method of process control, a closed loop system is formed by
the proportional, integral and differential operation of difference between the controlled value
feedback signal and target value signal and by adjusting the inverter output frequency so as to
stabilize the controlled value at the position of the target value.Suitable for flow control, pressure
control and temperature control and other process control applications.
PID Output
control amount
P
Td*s+1
1
Target
amount -
+
Feedback amount
Ti
1
S
1
Diagram 5-32:Flow diagram of process PID principle
Code
Parameter name
Setting range
Factory
setting
Change
limits
E2.00 PID setting source
E2.01 setting
0
0
☆
`
Analog AI1 reference
1
Analog AI2 reference
2
Panel potentiometer setting
3
High-speed pulse setting
4
Communications reference
5
Multi-stage command reference
6
Analog AI3 reference
7
E2.01 PID keyboard reference
0.0% to 100.0%
50.0%
☆
This parameter is used to select the process PID target value reference channel.
The set target value of process PID is a relative value, the setting range is from 0.0% to
100.0%. The feedback value of PID is also a relative value, the role of PID is to remain the same
for the two relative values.
