Parameters: 21-** Ext. Closed Loop - Danfoss VLT Automation Drive FC 360 Programming Manual

Parameter Descriptions

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:
[0]
*
4 4
[1]
4.18.2 21-1* Ext. Closed-loop Reference/
feedback
21-11 Ext. 1 Minimum Reference
Range:
0 ExtPID1Unit
*
21-12 Ext. 1 Maximum Reference
Range:
100
ExtPID1Unit
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:
[0]
*
[1]
[2]
[7]
[8]
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:
[0]
*
[1]
[2]
[3]
[4]
108
Function:
Disabled
Enabled Ext CL1 PID
Function:
[ -999999.999 - This parameter sets the
999999.999 minimum value that can be
ExtPID1Unit] obtained by the sum
setpoint and reference.
Function:
[ -999999.999 - This parameter sets the
999999.999 maximum value that can
ExtPID1Unit] be obtained by the sum of
the setpoint and reference.
Function:
No function
Analog Input 53
Analog Input 54
Frequency input 29
Frequency input 33
Function:
No function
Analog Input 53
Analog Input 54
Frequency input 29
Frequency input 33
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®
VLT AutomationDrive FC 360
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:
0 ExtPID1Unit
21-17 Ext. 1 Reference [Unit]
Returns the resulting reference value.
Range:
0 ExtPID1Unit
21-18 Ext. 1 Feedback [Unit]
Returns the feedback value.
Range:
0 ExtPID1Unit
21-19 Ext. 1 Output [%]
Returns the Ext. Closed Loop 1 PID controller output value.
Range:
0 %
*
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:
[0]
*
[1]
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:
0.01
*
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:
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:
0 s
*
[-999999.999 -
*
999999.999
ExtPID1Unit]
[-999999.999 - 999999.999
*
ExtPID1Unit]
[-999999.999 - 999999.999
*
ExtPID1Unit]
Function:
[0 - 100 %]
Function:
Normal
Inverse
Function:
[0 - 10 ]
Function:
[0.01 - 10000 s]
Function:
[0 - 10 s]
Function:
Function:
Function:
MG06C602