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
Configuration Mode
.
[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
Maximum Reference/Feedb.
.
2
NB!
Please refer to the
Troubleshooting
section to see an example of reference scaling.
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
Preset Reference
VLT® FC 100 LonWorks
6 How to control the Frequency Converter
MG.11.E2.02 - VLT
®
is a registered Danfoss trademark
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6
Summary of Contents for FC 100
Page 5: ...2 Safety VLT FC 100 LonWorks 4 MG 11 E2 02 VLT is a registered Danfoss trademark 2...
Page 11: ...4 How to install VLT FC 100 LonWorks 10 MG 11 E2 02 VLT is a registered Danfoss trademark 4...
Page 57: ...9 Troubleshooting VLT FC 100 LonWorks 56 MG 11 E2 02 VLT is a registered Danfoss trademark 9...