4.18 Parameters: 21-** Ext. Closed Loop
4.18.1 21-0* Ext. CL Autotuning
21-09 Extended PID Enable
Select the Extended CL PID controller that is to be autotuned.
Option:
Function:
[0]
*
Disabled
[1]
Enabled Ext CL1 PID
4.18.2 21-1* Ext. Closed-loop Reference/
feedback
21-11 Ext. 1 Minimum Reference
Range:
Function:
0 ExtPID1Unit
*
[ -999999.999 -
999999.999
ExtPID1Unit]
This parameter sets the
minimum value that can be
obtained by the sum
setpoint and reference.
21-12 Ext. 1 Maximum Reference
Range:
Function:
100
ExtPID1Unit
[ -999999.999 -
999999.999
ExtPID1Unit]
This parameter sets the
maximum value that can
be obtained by the sum of
the setpoint and reference.
21-13 Ext. 1 Reference Source
This parameter defines which input on the frequency converter
should be treated as the source of the reference signal.
Option:
Function:
[0]
*
No function
[1]
Analog Input 53
[2]
Analog Input 54
[7]
Frequency input 29
[8]
Frequency input 33
21-14 Ext. 1 Feedback Source
This parameter defines which input on the frequency converter
should be treated as the source of the feedback signal.
Option:
Function:
[0]
*
No function
[1]
Analog Input 53
[2]
Analog Input 54
[3]
Frequency input 29
[4]
Frequency input 33
21-15 Ext. 1 Setpoint
This parameter is used as the reference to compare the feedback
values with. The setpoint can be offset with digital, analogue or
bus references.
Range:
Function:
0 ExtPID1Unit
*
[-999999.999 -
999999.999
ExtPID1Unit]
21-17 Ext. 1 Reference [Unit]
Returns the resulting reference value.
Range:
Function:
0 ExtPID1Unit
*
[-999999.999 - 999999.999
ExtPID1Unit]
21-18 Ext. 1 Feedback [Unit]
Returns the feedback value.
Range:
Function:
0 ExtPID1Unit
*
[-999999.999 - 999999.999
ExtPID1Unit]
21-19 Ext. 1 Output [%]
Returns the Ext. Closed Loop 1 PID controller output value.
Range:
Function:
0 %
*
[0 - 100 %]
21-20 Ext. 1 Normal/Inverse Control
Select Normal if the controller output should be reduced when
the feedback is higher than the reference. Select Inverse if the
output should be increased when the feedback is higher than
the reference.
Option:
Function:
[0]
*
Normal
[1]
Inverse
21-21 Ext. 1 Proportional Gain
The proportional gain indicates the number of times the error
between the setpoint and the feedback signal is to be applied.
Range:
Function:
0.01
*
[0 - 10 ]
21-22 Ext. 1 Integral Time
The integrator provides an increasing gain at a constant error
between the setpoint and the feedback signal. The integral time
is the time needed by the integrator to reach the same gain as
the proportional gain.
Range:
Function:
10000 s
*
[0.01 - 10000 s]
21-23 Ext. 1 Differentation Time
The differentiator does not react to a constant error. It only
provides a gain when the error changes. The quicker the error
changes, the stronger the gain from the differentiator.
Range:
Function:
0 s
*
[0 - 10 s]
Parameter Descriptions
VLT
®
AutomationDrive FC 360
108
Danfoss A/S © 7/2015 All rights reserved.
MG06C602
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