8 Additional information
BU 0200 en-US-4920
247
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8.2 Process controller
The process controller is a PI controller which can be used to limit the controller output. In addition, the
output is scaled as a percentage of a master setpoint. This provides the option of controlling any
downstream drives with the master setpoint and readjusting using the PI controller.
+
-
X
x1
x2
y
x1*x2
y=
100 %
+
+
Figure 32: Process controller flow diagram
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Setpoint
P412 = 0.0-10.0 V
Actual
value
Analog input 1
(P400[-01]=6)
or
Analog input 2
Min. limit
P466
Lead
Analog input
(P400[..] = 16)
Master
setpoint
Analog input 1
(P400[-01]=2)
or
Analog input 2
Startup time P102
Ramp time PI setpoint P416
P factor P413
I factor P414
PI controller
Setpoint ramp
max. limit
P415
