Danfoss iC7 Motion Series Application Manual page 229

Application Guide | iC7 Series Motion
Speed
[RPM]
Positive Frequency Limit
Actual Speed Reference
Ramp
Drive in Torque Control
Negative Frequency Limit
Figure 88: Neg. Limit to Ramp
Ramp to max. limit
The maximum of the speed controller output and the torque reference is selected as final torque reference. The torque controller
operates in the range between the frequency limit for the positive direction and the speed limit given by the ramp.
Speed
[RPM]
Positive Frequency Limit
Ramp
Actual Speed Reference
Negative Frequency Limit
Figure 89: Ramp to Max. Limit
Window
Torque control is active within a speed window around the speed reference. Speed control activation limit is different from the speed
limit. Therefore speed is required to reach first to upper or lower window limit before the speed controller activates.
Positive Frequency Limit
Upper Window Limit
Lower Window Limit
Speed Controller Active
Negative Frequency Limit
Figure 90: Window
Torque Control Status (Menu Index 5.9.1)
6.6.11.2
P 5.9.1.1 Motor Torque
Description: Shows the actual motor torque.
© 2023.11
Speed Controller Active
Drive in Torque Control
Speed Controller Active
Speed Controller Active
Drive in Torque Control
Drive in Torque Control
Speed Controller Active
Speed Controller Active
Speed
Reference
Time
Time
Torque Control
area
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