4.18 Parameters: 21-** Ext. Closed Loop
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
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, analog, 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
[0] Normal
if the controller output should be reduced
when the feedback is higher than the reference. Select
[1] 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]
21-24 Ext. 1 Dif. Gain Limit
Set a limit for the differentiator gain (DG). The DG increases if
there are fast changes. Limit the DG to obtain a pure differen-
tiator gain at slow changes and a constant differentiator gain
where quick changes occur.
Range:
Function:
5
*
[1 - 50 ]
Parameter Descriptions
Programming Guide
MG07C102
Danfoss A/S © 12/2015 All rights reserved.
105
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Содержание VLT Midi Drive FC 280
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