ABB ACS180 User Manual

70 Program features
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 159), 21.31 Speed comp
stop delay (page 159) and 21.32 Speed comp stop threshold (page 160).
Events: -
Application control
 Control macros
Control macros are predefined parameter edits and I/O configurations. See chapter
Control macros.
 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.
The simplified block diagram below illustrates the process PID control.
The drive contains two complete sets of process PID controller settings that can be
alternated whenever necessary; see parameter 40.57 PID set1/set2 selection.
Process
PID
AI1
Process
actual
values
AI2
• • •
FBA
Setpoint
Speed, torque or
frequency
reference chain
Filter
Limitation
ACS180 FW.book Page 70 Tuesday, March 9, 2021 2:25 PM

ABB ACS180 Specifications

General

Product Type	DC Drive
Number of Phases	1 or 3
IP Rating	IP20
Communication Interfaces	Modbus RTU
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-40 to +70 °C
Relative Humidity	5 to 95 % non-condensing
Altitude	Up to 1000 m