ABB ACS280, Firmware Manual, Page: 55 / 430

Program features 55
Speed compensation does not take into account shape times (parameters
23.32
Shape time 1 and 23.33 Shape time 2 ). Positive shape times lengthen the
distance traveled.
Speed compensation can be restricted to forward or reverse rotating direction.
Speed compensation is supported in both vector and scalar motor control.
Settings and diagnostics
Parameters 21.30 Speed compensated stop mode (page 144 ), 21.31 Speed comp
stop delay
(page
144
) and
21.32 Speed comp stop threshold
(page
145
).
Events: -
Application control

Control connection
Control connection is predefined parameter edits and I/O configurations. See
chapter Default control connection .
 Process PID control
There is a built-in process PID controller in the drive. The controller can be used
to control process such as pressure or flow in the pipe or fluid level in the
container.
In process PID control, a process reference (setpoint) is connected to the drive
instead of a speed reference. An actual value (process feedback) is also brought
back to the drive. The process PID control adjusts the drive speed in order to
keep the measured process quantity (actual value) at the desired level
(setpoint). This means that user does not need to set a
frequency/speed/torque reference to the drive but the drive adjust its
operation according to the process PID.