GE Ecomagination AF-600 FP Programming Manual page 158

Parameter Description
CL-14 Maximum Reference/Feedb.
Range:
100 [par. CL-13 -
ProcessCtrlUnit 999999.999
*
ProcessCtrlUnit]
3.22.2 CL-2# Feedback & Setpoint
This parameter group is used to determine how the PID
controller uses the 3 possible feedback signals to control
the output frequency of the frequency converter. This
group is also used to store the 3 internal setpoint
references.
DET-620D
AF-600 FP™ Programming Guide
Function:
NOTICE
If operating with
parameter H-40 Configu-
ration Mode set for [0]
Open Loop, use
parameter F-53 Maximum
Reference.
NOTICE
The dynamics of the PID
controller depends on the
value set in this
parameter. See also
parameter CL-93 PID
Proportional Gain.
Parameter CL-13 Minimum
Reference/Feedb. and
parameter CL-14 Maximum
Reference/Feedb. also
determine the feedback
range when using
feedback for display
readout with
parameter H-40 Configu-
ration Mode set for [0]
Open Loop. Same
condition as above.
Enter the maximum reference/
feedback for closed loop
operation. The setting
determines the highest value
obtainable by summing all
reference sources for closed
loop operation. The setting
determines 100% feedback in
open and closed loop (total
feedback range: -200% to
+200%).
03/2016 All rights reserved.
CL-20 Feedback Function
Option: Function:
This parameter determines how the 3 possible
feedbacks are used to control the output
frequency of the frequency converter.
[0] Sum Sets up the PID controller to use the sum of
feedback 1, feedback 2, and feedback 3 as the
feedback.
NOTICE
Set any unused feedbacks to [0] No
Function in
•
Parameter CL-00 Feedback 1
Source.
•
Parameter CL-03 Feedback 2
Source.
•
Parameter CL-06 Feedback 3
Source.
The sum of setpoint 1 and any other references
that are enabled (see C-30 and C-34) are used as
the PID controller's setpoint reference.
[1] Difference Sets up the PID controller to use the difference
between feedback 1 and feedback 2 as the
feedback. Feedback 3 is not used with this
selection. Only setpoint 1 is used. The sum of
setpoint 1 and any other references that are
enabled (see C-30 and C-34) are used as the PID
controller's setpoint reference.
[2] Average Sets up the PID controller to use the average of
feedback 1, feedback 2, and feedback 3 as the
feedback.
NOTICE
Set any unused feedbacks to [0] No
Function in
•
Parameter CL-00 Feedback 1
Source.
•
Parameter CL-03 Feedback 2
Source.
•
Parameter CL-06 Feedback 3
Source.
The sum of setpoint 1 and any other
references that are enabled (see C-30 and
C-34) are used as the PID controller's
setpoint reference.
[3] Minimum Sets up the PID controller to compare feedback
1, feedback 2, and feedback 3. The PID controller
*
uses the lowest value as the feedback.
3 3
157