ABB ACS380 Series - Process PID Set 1

Parameters 233
40
40 Process PID set 1
Parameter values for process PID control.
The drive output can be controlled by the process PID.
When the process PID control is enabled, the drive
controls the process feedback to the reference value.
Two different parameter sets can be defined for the
process PID. One parameter set is in use at a time. The
first set is made up of parameters 40.07…40.50, the
second set is defined by the parameters in group 41
Process PID set 2. The binary source that defines which
set is used is selected by parameter 40.57 PID set1/set2
selection.
See also the PID control chain diagrams in chapter
Control chain diagrams.
To set the PID customer unit, select Menu - Primary
settings - PID - Unit on the panel.
40.01 Process PID output
actual
Displays the output of the process PID controller. See the
control chain diagram on page 457.
This parameter is read-only.
-
-32768.00…
32767.00%
Process PID controller output. 1 = 1%
40.02 Process PID feedback
actual
Displays the value of process feedback after source
selection, mathematical function (parameter 40.10 Set 1
feedback function), and filtering. See the control chain
diagram on page 457.
This parameter is read-only.
-
-32768.00…
32767.00 PID
customer units
Process feedback. 1 = 1 PID
customer
unit
40.03 Process PID setpoint
actual
Displays the value of process PID setpoint after source
selection, mathematical function (40.18 Set 1 setpoint
function), limitation and ramping. See the control chain
diagram on page 457.
This parameter is read-only.
-
-32768.00… 32767.00
PID customer units
Setpoint for process PID controller. 1 = 1 PID
customer
unit
40.04 Process PID deviation
actual
Displays the process PID deviation. By default, this value
equals setpoint - feedback, but deviation can be inverted
by parameter 40.31 Set 1 deviation inversion. See the
control chain diagram on page 457.
This parameter is read-only.
-
-32768.00… 32767.00
PID customer units
PID deviation. 1 = 1 PID
customer
unit
No. Name/Value Description Default
FbEq 16