46 Program features
Operating modes of the drive
The drive can operate in several operating modes with different types of reference.
The operating mode is selectable for each control location (Local, EXT1 and EXT2)
when the motor control mode is Vector (99.04). If the motor control mode is Scalar,
the drive operation mode is fixed to frequency control mode.
An overview of the control hierarchy and different reference types and control chains
is shown below.
Speed control mode
In speed control mode, the motor follows a speed reference given to the drive.
Speed control mode is available in both local and external control locations. It is
supported in vector motor control only.
Speed control uses speed reference chain.
Settings and diagnostics
Parameter group: 22 Speed reference selection
Events: -
Frequency reference
Refer to group 28
Frequency reference chain
Speed reference
Refer to group 22 Speed
reference selection
Torque reference
Parameter group 26
Torque reference chain
Process PID
Vector motor control mode Scalar motor control mode
Frequency controllerTorque controller
ACS180 FW.book Page 46 Tuesday, March 9, 2021 2:25 PM
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