Application Control; Application Macros; Process Pid Control; Quick Configuration Of The Process Pid Controller - ABB ACS880 Firmware Manual

Application control

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Application macros

Application macros are predefined application parameter edits and I/O
configurations. See chapter
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Process PID control

There is a built-in process PID controller in the drive. The controller can be used
to control process variables such as pressure, flow or fluid level.
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).
Process PID control operates on a 2 ms time level.
The simplified block diagram below illustrates the process PID control. For a more
detailed block diagram, see page 758.
Setpoint
AI1
AI2
Process
actual
. . .
values
D2D
FBA
The control program contains two complete sets of process PID controller settings
that can be alternated whenever necessary; see parameter 40.57.
Note: Process PID control is only available in external control; see section
control vs. external control (page

Quick configuration of the process PID controller

1. Activate the process PID controller (parameter 40.7).
2. Select a feedback source (parameters 40.8...40.11).
3. Select a setpoint source (parameters 40.16...40.25).
Application macros (page
Process
Filter
PID
39).
Program features 109
149).
Limitation
Speed, torque or
frequency
reference chain
Local