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Case 3: Negative to positive reference with dead band, sign determines the direction, -Max – +Max
3.4 PID Control
3.4.1 Speed PID Control
The table shows the control configurations where the Speed Control is active.
Par. 1-00
Configuration
Mode
Par. 1-01
Motor Control Principle
Motor Control Principle
U/f
VVC
plus
Flux sensorless
Flux w/ enc. feedb
[0] Speed open-loop
Not Active
Not Active
ACTIVE
N.A.
[1] Speed closed-loop
N.A.
ACTIVE
N.A.
ACTIVE
[2] Torque
N.A.
N.A.
N.A.
Not Active
[3] Process
Not Active
ACTIVE
ACTIVE
Note: “N.A.” means that the specific mode is not available at all. “Not Active” means that the specific mode is available but the Speed Control is not active
in that mode.
Note: The Speed Control PID will work under the default parameter setting, but tuning the parameters is highly recommended to optimize the motor
control performance. The two flux motor control principles are specially dependant on proper tuning to yield their full potential.
FC 300 Design Guide
3 Introduction to AutomationDrive FC 300
MG.33.BC.22 - VLT
®
is a registered Danfoss trademark
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