GE Industrial Solutions AF-600 FP Fan and Pump Drive (460V_575V 150HP and above) - Manual (Page 103)

NB!
Any unused feedbacks must be set to No Function in par. CL-00 Feedback 1 Source, par. CL-03 Feedback
2 Source, or par. CL-06 Feedback 3 Source.
The sum of Setpoint 1 and any other references that are enabled (see par. C-30 and par. C-34) will be
used as the PID Controller’s set-point reference.
[1] Difference Difference [1] sets up the PID controller to use the difference between Feedback 1 and Feedback 2 as the
feedback. Feedback 3 will not be used with this selection. Only Setpoint 1 will be used. The sum of Setpoint
1 and any other references that are enabled (see par. C-30 and par. C-34) will be used as the PID controller’s
set-point reference.
[2] Average Average [2] sets up the PID Controller to use the average of Feedback 1, Feedback 2 and Feedback 3 as
the feedback.
NB!
Any unused feedbacks must be set to No Function in par. CL-00 Feedback 1 Source, par. CL-03 Feedback
2 Source, or par. CL-06 Feedback 3 Source. The sum of Setpoint 1 and any other references that are
enabled (see par. C-30 and par. C-34) will be used as the PID Controller’s set-point reference.
[3] * Minimum Minimum [3] sets up the PID Controller to compare Feedback 1, Feedback 2 and Feedback 3 and use the
lowest value as the feedback.
NB!
Any unused feedbacks must be set to No Function in par. CL-00 Feedback 1 Source, par. CL-03 Feedback
2 Source, or par. CL-06 Feedback 3 Source. Only setpoint 1 will be used. The sum of Setpoint 1 and any
other references that are enabled (see par. C-30 and par. C-34) will be used as the PID Controller’s
setpoint reference.
[4] Maximum Maximum [4] sets up the PID Controller to compare Feedback 1, Feedback 2 and Feedback 3 and use the
highest value as the feedback.
NB!
Any unused feedbacks must be set to No Function in par. CL-00 Feedback 1 Source, par. CL-03 Feedback
2 Source, or par. CL-06 Feedback 3 Source.
Only Setpoint 1 will be used. The sum of Setpoint 1 and any other references that are enabled (see par.
C-30 and par. C-34) will be used as the PID Controller’s setpoint reference.
[5] Multi Setpoint Min Multi-setpoint minimum [5] sets up the PID Controller to calculate the difference between Feedback 1 and
Setpoint 1, Feedback 2 and Setpoint 2, and Feedback 3 and Setpoint 3. It will use the feedback/setpoint
pair in which the feedback is the farthest below its corresponding setpoint reference. If all feedback signals
are above their corresponding setpoints, the PID Controller will use the feedback/setpoint pair in which
the difference between the feedback and setpoint is the least.
NB!
If only two feedback signals are used, the feedback that is not to be used must be set to No Function
in par. CL-00 Feedback 1 Source, par. CL-03 Feedback 2 Source or par. CL-06 Feedback 3 Source. Note
that each setpoint reference will be the sum of its respective parameter value (par. CL-21 Setpoint 1,
par. CL-22 Setpoint 2 and par. CL-23 Setpoint 3) and any other references that are enabled (see par.
C-30 and par. C-34).
[6] Multi Setpoint Max Multi-setpoint maximum [6] sets up the PID Controller to calculate the difference between Feedback 1
and Setpoint 1, Feedback 2 and Setpoint 2, and Feedback 3 and Setpoint 3. It will use the feedback/
setpoint pair in which the feedback is farthest above its corresponding setpoint reference. If all feedback
signals are below their corresponding setpoints, the PID Controller will use the feedback/setpoint pair in
which the difference between the feedback and the setpoint reference is the least.
AF-600 FP High Power Operating Instructions
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