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26 Control locations and operating modes
Operating modes of the drive
The drive can operate in several operating modes with different types of reference.
The mode is selectable for each control location (Local, EXT1 and EXT2) in parameter
group 19.
The following is a general representation of the reference types and control chains.
For detailed diagrams, see chapter
The following is a general representation of the reference types and control chains.
For detailed diagrams, see chapter
Position
reference
profile
selection
Speed
Speed
reference
reference
source
source
selection I
selection II
Torque
reference
source sel
modification
￭
Speed control mode
The motor follows a speed reference given to the drive. This mode can be used
either with estimated speed as feedback, or with an encoder or resolver for better
speed control accuracy.
Speed control mode is available in both local and external control. It is also available
both in DTC (Direct Torque Control) and scalar motor control modes.
Control chain
Control chain
Master ref
PI control for
source sel
and
modification
Position
controller
configuration
Speed
Speed error
reference
calculation
ramping
configuration
and shaping
Speed
controller
Reference
selection for
torque
controller
Torque
limitation
control mode
Scalar motor
control mode
diagrams.
diagrams.
master
velocity
correction
Actual
position
feedback
Motor
feedback
Operating
mode
selection
Torque
controller
DTC motor
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