20-13 Minimum Reference/Feedb.
Range: Function:
0.000
Proc-
essCtrlU-
nit*
[Application dependant] Enter the desired minimum value for the remote reference when oper-
ating with par. 1-00
Configuration Mode set for Closed Loop [3] opera-
tion. Units are set in par. 20-12
Reference/Feedback Unit.
Minimum feedback will be -200% of either the value set in
par. 20-13
Minimum Reference/Feedb. or in par. 20-14 Maximum Refer-
ence/Feedb., which ever numeric value is the highest.
If operating with par. 1-00
Configuration Mode set for Open Loop [0], par. 3-02 Minimum Reference must be used.
20-14 Maximum Reference/Feedb.
Range: Function:
100.000
Proc-
essCtrlU-
nit*
[Application dependant] Enter the maximum reference/feedback for closed loop operation. The
setting determines the highest value obtainable by summing all refer-
ence sources for closed loop operation. The setting determines 100%
feedback in open and closed loop (total feedback range: -200% to +200%).
If operating with par. 1-00
Configuration Mode set for Open Loop [0], par. 3-03 Maximum Reference must be used.
The dynamics of the PID controller will depend on the value set in this parameter. Please see also par. 20-93
PID
Proportional Gain.
Par. 20-13 and par. 20-14 also determine the feedback range when using feedback for display readout with
par. 1-00
Configuration Mode set for Open Loop [0]. Same condition as above.
20-20 Feedback Function
Option: Function:
This parameter determines how the three possible feedbacks will be
used to control the output frequency of the frequency converter.
[0] Sum
Sum
[0] sets up the PID Controller to use the sum of Feedback 1, Feed-
back 2 and Feedback 3 as the feedback.
Any unused feedbacks must be set to
No Function
in par. 20-00 Feedback
1 Source, par. 20-03 Feedback 2 Source, or par. 20-06 Feedback 3 Source.
The sum of Setpoint 1 and any other references that are enabled (see
par. group 3-1*) 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. group 3-1*) 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.
How to program the Frequency Converter
BAS-SVX19C-EN 6-47
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