Tuning The Pid Control Loop - Emerson Micro Motion 3711 Configuration And Use Manual

PID Control Loops
Figure 10-2 PID Loop Tuning window
10.4

Tuning the PID control loop

To tune the PID control loop:
1. Click the
Figure 10-2.
2. Configure parameters as required, for both the primary and the override loop. Parameters are
listed and defined in Table 10-1.
Table 10-1 PID loop tuning parameters
Parameter Description
Gain Proportional gain. Ratio of change in the control output to
change in the error.
Reset Integral gain. Ratio of change in the control output to change in
the integral of the error, with respect to time.
Rate Derivative gain. Ratio of change in the control output to change
in the derivative of the error, with respect to time.
Configuration and Use Manual
button in the
Tuning PID Loop
window. The window is expanded as shown in
Comments
"Error" is the difference between
the setpoint and the current value
of the process variable.
Value represented in terms of
repeats per minute.
Value represented in terms of
minutes.
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