
11.10
Process controller function selection
By means of the following functions, the response of the inverter in process controller mode
can be controlled.
4
Configuring the process controller
^
138
Parameter
Name / value range / [default setting]
Info
0x2631:045
(PAR 400/045)
Function assignment: Process controller off
(Function list: PID off)
•
For possible settings see description for
0x2631:001 (PAR 400/001)
.
^
188
Assignment of a trigger for the "Process controller off" function.
Trigger = TRUE: if process controller mode is active, ignore PID control
and actuate the drive in speed-controlled manner.
Trigger = FALSE: if process controller mode is active, actuate the drive
with PID control.
Notes:
•
The PID control mode can be selected in
0x4020:001 (PAR 600/001)
.
00 Not connected
No trigger assigned (trigger is constantly FALSE).
0x2631:046
(PAR 400/046)
Function assignment: Set process controller output to
0
(Function list: PID output=0)
•
For possible settings see description for
0x2631:001 (PAR 400/001)
.
^
188
Assignment of a trigger for the "Set process controller output to 0" func-
tion.
Trigger = TRUE: if process controller mode is active, the I-component and
the output of the process controller are set to 0 and the internal control
algorithm is stopped. Process controller mode remains active.
Trigger = FALSE: no action / deactivate function again.
00 Not connected
No trigger assigned (trigger is constantly FALSE).
0x2631:047
(PAR 400/047)
Function assignment: Inhibit process controller I-
component
(Function list: PID-I inhibited)
•
For possible settings see description for
0x2631:001 (PAR 400/001)
.
^
188
Assignment of a trigger for the "Inhibit process controller I-component"
function.
Trigger = TRUE: if process controller mode is active, the I-component of
the process controller is set to 0 and the integration process is stopped.
Trigger = FALSE: no action / deactivate function again.
Notes:
•
The reset time can be set in
0x4049 (PAR 602)
.
00 Not connected
No trigger assigned (trigger is constantly FALSE).
0x2631:048
(PAR 400/048)
Function assignment: Activate process controller
influence ramp
(Function list: PID-Inf ramp on)
•
For possible settings see description for
0x2631:001 (PAR 400/001)
.
^
188
Assignment of a trigger for the "Activate process controller influence
ramp" function.
Trigger = TRUE: the influence of the process controller is shown via a
ramp.
Trigger = FALSE or not connected: the influence of the process controller
is hidden via ramp.
Notes:
•
The influence of the process controller is always active (not only in
process controller mode).
•
Acceleration time for showing the influence of the process controller
can be set in
0x404C:001 (PAR 607/001)
.
•
Deceleration time for hiding the influence of the process controller
can be set in
0x404C:002 (PAR 607/002)
.
01 Constant TRUE
Trigger is constantly TRUE.
0x4020:001
(PAR 600/001)
Process controller: Operating mode
(Process controller: Operating mode)
Selection of the process controller operating mode.
0 Inhibited
Process controller deactivated.
1 Normal operation
If the controlled variable (actual value) fed back is reduced, the motor
speed is increased.
Example: pressure-controlled booster pumps (increase in the motor
speed produces an increase in pressure.)
2 Reversing duty
If the controlled variable (actual value) fed back is reduced, the motor
speed is also reduced.
Example: temperature-controlled cooling water pump (increase in motor
speed produces decrease in temperature.)
3 Normal operation in both rotating directions As selection 1, but also inverted rotating direction possible if both rotat-
ing directions are enabled with the setting
0x283A (PAR 304)
= 1.
4 Reversing duty in both rotating directions
As selection 2, but also inverted rotating direction possible if both rotat-
ing directions are enabled with the setting
0x283A (PAR 304)
= 1.
0x4049
(PAR 602)
I component reset time
(I-deceleration)
20 ... [400] ... 6000 ms
Reset time for system deviation.
•
With the setting "6000 ms", the I component is deactivated.
•
The I component can also be deactivated via a trigger assigned in
0x2631:047 (PAR 400/047)
of the "Inhibit process controller I-
component"
0x2631:047 (PAR 400/047)
function.
Flexible I/O configuration
Process controller function selection
207
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