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
P41
H
.Setpointf
q.Setpointfr
Example:
=
+≥
%100
%2550
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 (limitation +/-) [%] : 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