Control Structure In Flux Sensorless - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
Introduction to FC 300

Control Structure in Flux Sensorless

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Control structure in Flux sensorless open loop and closed-loop configurations. (Only available in FC 302):
In the shown configuration, par. 1-01 Motor Control Principle is set to "Flux sensorless [2]" and par.
1-00 is set to "Speed open loop [0]". The resulting reference from the reference handling system is fed
through the ramp and speed limitations as determined by the parameter settings indicated.
An estimated speed feedback is generated to the Speed PID to control the output frequency.
The Speed PID must be set with its P, I, and D parameters (par. group 7-0*).
Select "Process [3]" in par. 1-00 to use the process PID control for closed-loop control of i.e. speed
or pressure in the controlled application. The Process PID parameters are found in par. group
7-2* and 7-3*. Process PID is not available in this software release.
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