Chapter 6 PA Process control PID
111
.
1
1
PID Output control
Ti
S
Td*s+1
1
Target amount
Feedback
P
Figure 6-25 Process PID block diagram
PA-00
PID given
source
0: PA-01 setting 1: AI1 2: AI2 3: AI3 (panel
potentiometer) 4: Pulse setting
5: Communication given 6: Multi-speed given
Default
：
0
PA-01
PID value given
0.0%
～
100.0%
Default
：
50.0%
This parameter is used to select the target channel for the process PID.
The set target amount of the process PID is a relative value, and the setting range is
0.0% to 100.0%. The feedback amount of the same PID is also the relative amount, and
the role of the PID is to make the two relative quantities the same.
PA-02
PID feedback source
0: AI1 1: AI2 2: AI3/panel potentiometer 3:
AI1-AI2 4: Pulse setting (X6)
5: Communication given 6: AI1+AI2
7:MAX(|AI1|, |AI2|)
8:MIN(|AI1|, |AI2|)
Default
：
0
This parameter is used to select the feedback signal channel of the process PID.
The feedback amount of the process PID is also a relative value, and the setting range is
0.0% to 100.0%.
PA-03
PID action direction
0
：
Positive action 1: reaction
Default
：
0
Positive action: When the PID feedback signal is less than the given amount, the inverter
output frequency rises. Such as winding tension control occasions.
Reaction: When the feedback signal of the PID is less than the given amount, the output
frequency of the inverter decreases. Such as unwinding tension control
occasions.
This function is affected by the reverse direction of the multi-function terminal PID
(function 35), so you need to pay attention to it during use.
PA-04
PID given feedback
range
0
～
65535
Default
：
1000
The PID given feedback range is a dimensionless unit for the PID given display U0-15
and the PID feedback display U0-16. The relative value of the given feedback of the PID
is 100.0%, corresponding to the given feedback range PA-04. For example, if PA-40 is set
to 2000, when the PID is given 100.0%, the PID given display U0-15 is 2000.
