How To Control The Frequency Converter; How To Control The Fc 100; Open Loop; Closed Loop - Danfoss VLT FC 100 LonWorks Manual

VLT® FC 100 LonWorks

6 How to control the Frequency Converter

6.1 How to Control the FC 100

6.1.1 Reference Handling
Select the frequency converter configuration mode in par. 1-00

[0] Open Loop

[3] Closed Loop

6.1.2 Open Loop
For open loop operation, the reference represents the desired output speed of the frequency converter.
The speed reference value is transmitted to the frequency converter as a relative value in %.
6.1.3 Closed Loop
In closed loop operation the feedback/reference is scaled from 1 to par. 20-14
NB!
Please refer to the
All references provided to the frequency converter are added to the total reference value.
If a reference is to be controlled by the LonWorks bus only, please ensure that all other reference inputs are zero.
This means that digital and analog input terminals should not be used for reference signals.
The default setting (0%) should be maintained for preset references in par. 3-10
Configuration Mode
Troubleshooting section to see an example of reference scaling.
MG.11.E2.02 - VLT ® is a registered Danfoss trademark
6 How to control the Frequency Converter
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Maximum Reference/Feedb.
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2
Preset Reference
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