ABB ACQ580 - Operating Modes of the Drive; Speed Control Mode; Frequency Control Mode

40 Program features
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 Operation mode. An overview of the different reference types
and control chains is shown below.
 Speed control mode
The motor follows a speed reference given to the drive. This mode can be used with
estimated speed used as feedback.
Speed control mode is available in both local and external control. It is supported in
vector motor control only.
Speed control uses speed reference chain. Select speed reference with parameters
in group 22 Speed reference selection on page 154.
 Frequency control mode
The motor follows a frequency reference given to the drive. Frequency control is
available in both local and external control. It is supported in scalar motor control only.
Frequency control uses frequency reference chain. Select frequency reference with
parameters in group 28 Frequency reference chain on page 167.
PID
Vector motor control mode Scalar motor control mode
Frequency controllerTorque controller
Speed reference
Parameter group 22
Speed reference
selection
Frequency reference
Parameter group 28
Frequency reference
chain