Santerno Sinus Penta - Page 400

SINUS PENTA
PROGRAMMING GUIDE
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C291a PID Control Mode
C291a Range
0 ÷ 7
0: Standard SUM
1: Standard DIFF
2: Average
3: Minimum
4: Maximum
5: 2-Zone MIN
6: 2-Zone MAX
7: 2 PIDs
Default
0
0: Standard SUM
Level
ENGINEERING
Address
1295
Function
This parameter sets the PID control mode.
Functions 0 to 4 set the processing mode of the feedback s
ignal as detailed
below.
1) If C179 Input for Source Selection and C179b
(Input for Reference Selection)
are both = 0: Disabled:
STANDARD SUM: All the selected feedback signals are summed up.
STANDARD DIFF: The sum of the remaining selected feedback signa
ls is
subtracted from the feedback signal programmed in C288.
AVERAGE:
The resultant of the feedback is given from the arithmetical average
of the selected signals.
MINIMUM:
The signal having the smallest value among the selected signals is
considered as the feedback.
MAXIMUM:
The signal having the largest value among the selected signals is
considered as the feedback.
2) If C179 or C179b are enabled:
STANDARD SUM: C288+C290 or C289+C290.
STANDARD DIFF: C288–C290 or C289–C290.
AVERAGE: AVG(C288,C290) or AVG(C289,C290).
MINIMUM: MIN(C288,C290) or MIN(C289,C290).
MAXIMUM: MAX(C288,C290) or MAX(C289,C290).
The references are always summed with each other, unless they are managed
with the Source Selection (see C179 and C179b).