4-218
PID Control Type
The inverter offers two types of PID control:
(a) PID control with differential feedback:
(10-03 = x1xxb)
Make sure to adjust the PID parameters without causing system instability. Refer to Figure 4.4.78 for PID control
for feedback value differential.
P
I
Control
D
+
-
+
+
+
+
Feedback
Set Value
Figure 4.4.78 PID control for feedback differential value
(b) Basic PID control:
(10-03 = x0xxb)
This is the basic type of PID control. Refer to the figure 4.4.79.
P
I
D
Control
+
+
+
+
-
Feedback
Set Value
Figure 4.4.79 Basic PID control
PID Setup
Enable PID control by setting parameter 10-03, PID target value (10-00) and PID feedback value (10-01).
To use PID control set frequency command selection 00-05 to 4.
