8
Additional information
BU 0500 GB
Subject to technical alterations
147
8.2.2 Process controller parameter settings
(Example: setpoint frequency: 50 Hz, control limits: +/- 25%)
P105 (maximum frequency) [Hz] :
[ ]
[ ]
[ ]
⎟
⎠
⎞
⎜
⎝
⎛
×
+
≥
100%
Hz
%
P415
Hz
q.
Setpointfr
q.
Setpointfr
Example:
=
×
+
≥
%
100
%
25
50
50
Hz
Hz
62.5Hz
P400 (Funct. analog input)
:
“4”
(frequency addition)
P411 (setpoint frequency) [Hz]
: Set frequency with 10 V at analog input 1
Example:
50 Hz
P412 (Process controller setpoint) : CR middle position / Default setting
5V
V (adapt if necessary)
P413 (P controller) [%]
: Default setting
10%
(adapt if necessary)
P414 (I-controller) [% / ms]
: recommended
100
%/s
P415 (limi/-) [%]
: Controller limitation (see above)
Note:
In the function process controller, parameter P415 is used as a
controller limiter downstream from the PI controller. This
parameter therefore has a double function.
Example:
25%
of setpoint
P416 (ramp before controller) [s] : Default setting
2s
(if necessary, adjust to controller behaviour)
P420 (Funct. digital input 1)
:
“1”
Enable right
P405 (Funct. Analoginput 2)
:
"14"
actual value PID process controller
