IDEC MICROSmart FC6A Series, Ladder Programming Manual

Page: 407 / 604

FC6A S
ERIES
MICROS
MART
L
ADDER
P
ROGRAMMING
M
ANUAL
FC9Y-B1726 19-17
19: PID C
ONTROL
I
NSTRUCTION
S1+9 Integral time
Set a value between 1 and 65,535 (0.1 to 6553.5 seconds).
When integral time is 0, integral time is disabled.
R/W
S1+10 Derivative time
Set a value between 1 and 65,535 (0.1 to 6553.5 seconds).
When derivative time is 0, derivative time is disabled.
R/W
S1+11 Derivative gain
Set a value between 0 and 100 (0 to 100%)
Derivative gain of 0 operates as 0% and 101 or higher operates as 100%.
R/W
S1+12 ARW
Set a value between 0 and 100 (0 to 100%)
ARW of 101 or higher operates as 100%.
R/W
S1+13 AT bias
Set a value that satisfies process variable minimum value < (set point - AT bias
setting value) and process variable maximum value > (set point + AT bias
setting value). When a value is set that does not satisfy both conditions listed
above, 133 is stored in the operation status (S1+2).
R/W
S1+14
Output manipulated variable
upper limit/percentage
• When Enable (upper and lower limits)
R/W
Set a value between 0 and 100 (0 to 100%)
Operates as 100 for a value other than 0 to 100.
• When Enable (percentage)
Set a value between 10001 and 10099 (1 to 99%)
Operates as the "Output manipulated variable upper limit" for a value
other than 10001 to 10099.
Output manipulated variable = manipulated variable calculated by the
PIDA instruction x scaling factor
S1+15
Output manipulated variable
lower limit
Set a value between 0 and 100 (0 to 100%)
Operates as 0 for a value other than 0 to 100. Set a value that satisfies
Output manipulated variable lower limit value < Output manipulated variable
upper limit value.
R/W
S1+16
Output manipulated variable
rate of change Set a value between 0 and 100 (0 to 100%/second)
If not 0 to 100, output manipulated variable rate of change is disabled.
R/W
S1+17
Manual mode output
manipulated variable
Set a value between 0 and 10000 (0.00 to 100.00%). Set a value that
satisfies output manipulated variable lower limit value
≤ manual mode output
manipulated variable ≤ output manipulated variable upper limit value.
When the output manipulated variable limit enable (S3+2) is ON, this
operates as the output manipulated variable lower limit value for a value
other than one between the output manipulated variable lower limit value
and the output manipulated variable upper limit value. R/W
S1+18
Output manipulated variable
(% value)
Output manipulated variable is stored as a value between -32,768 and
+32,767 (-327.68 to +327.67%).
The output manipulated variable (% value) is unknown while auto tuning is
executing.
For manual mode, the manual mode output manipulated variable value is not
stored.
R
S1+19
Output manipulated variable
(Analog value)
• When Analog Output is specified for the output manipulated variable
R
The S1+1 output manipulated variable (%) undergoes linear conversion in
the range of the minimum and maximum values of the analog output, and
that value is stored.
• When Data Register is specified for the output manipulated variable
The output manipulated variable (%) stored in S1+1 is linearly converted
with the minimum and maximum output values, and the converted value is
stored in S1+19.
S1+20 Proportional band offset
Set a value between -100 and 100 (-100 to 100%)
Proportional band offset of -101 or lower operates as -100% and 101 or
higher operates as 100%.
R/W
S1+21 Control period
Set a value between 1 and 500 (0.1 to 50.0 seconds)
Control period of 0 operates as 0.1 seconds and 501 or higher operates as
50.0 seconds.
R/W
Storage
Destination
Function Setting Details R/W