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Danfoss VLT Flow Drive FC 111 User Manual

Danfoss VLT Flow Drive FC 111
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Table 376: Range:
Min: 0%
Max: 200%
Default value: 5%
4.15.6 20-9* PI Controller
Parameters for configuring the Process PI controller.
20-91 PI Anti Windup
Default value: [1] On
Parameter type: Option
2-setup: All setups
Conversion index: -
Data type: u_int8
Change during operation: True
Table 377: Option:
[0]
Off
Continue regulation of an error even when the output frequency cannot be increased or decreased.
[1]
On
Cease regulation of an error when the output frequency can no longer be adjusted.
20-93 PI Proportional Gain
Default value: 0.50
Parameter type: Range
2-setup: All setups
Conversion index: -2
Data type: u_int16
Change during operation: True
Enter the process controller proportional gain. Quick control is obtained at high amplification. However, if amplification is too high,
the process may become unstable.
Table 378: Range:
Min: 0
Max: 10
Default value: 0.50
20-94 PI Integral Time
Default value: 20 s
Parameter type: Range
2-setup: All setups
Conversion index: -2
Data type: u_int32
Change during operation: True
Enter the process controller integral time. Obtain quick control through a short integral time, though if the integral time is too short,
the process becomes unstable. An excessively long integral time disables the integral action.
Table 379: Range:
Min: 0.10 s
Max: 9999 s
Default value: 20 s
20-97 PI Feed Forward Factor
Default value: 0%
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: u_int16
Change during operation: True
Enter the PI feed forward factor. The FF factor sends a constant fraction of the reference signal to bypass PI control. Therefore, the PI
can affect only the remaining fraction of the control signal. The FF factor can increase dynamic performance.
Table 380: Range:
Min: 0%
Max: 400%
Default value: 0%
4.16 Parameter Group 22-** Appl. Functions
Parameter group for application monitoring functions.
4.16.1 22-0* Miscellaneous
Parameter group for extra settings.
AU363928304090en-000101 / 130R0982164 | Danfoss A/S © 2021.07
Parameters
VLT® Flow Drive FC 111
Programming Guide

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Danfoss VLT Flow Drive FC 111 Specifications

General IconGeneral
BrandDanfoss
ModelVLT Flow Drive FC 111
CategoryDC Drives
LanguageEnglish

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