Dancer feedback speed control details
86
Integral stop selection at limited manipulated amount (Pr.1015)
• The operation for the integral term can be selected when the manipulated amount is limited during PID control.
Integral control action selection using input signal (X100 signal, X103
signal)
• Turn ON the PID integral term reset input (X100) signal to disable the integral control. (The integral term value is cleared.)
• To input the X100 signal, set "100" in any of
Pr.178 to Pr.189 (input terminal function selection)
to assign the function.
• Turn ON the Integral term activation selection (X103) signal to keep the integral term value. The manipulated amount is
calculated using the kept integral term value.
• To input the X103 signal, set "103" in any of
Pr.178 to Pr.189 (input terminal function selection)
to assign the function.
NOTE
• Changing the terminal assignment using
Pr.178 to Pr.189 (input terminal function selection)
may affect the other
functions. Set parameters after confirming the function of each terminal.
3.5.13
Differential control action setting
Differential control can be disabled by the signal input. (The differential term value is cleared.)
Differential control action selection using input signal (X101 signal)
• Turn ON the PI control switchover (X101) signal to disable the differential control. (The differential term value is cleared.)
• To input the X101 signal, set "101" in any of
Pr.178 to Pr.189 (input terminal function selection)
to assign the function.
NOTE
• Changing the terminal assignment using
Pr.178 to Pr.189 (input terminal function selection)
may affect the other
functions. Set parameters after confirming the function of each terminal.
3.5.14
PID control gain selection
PID gain (proportional band, integral time, differential time) can be set individually according to the polarity of the deviation.
First to fourth PID gain (proportional band, integral time, differential time) can be selected by the signal input.
Pr.1015 setting
Operation at limited
manipulated amount
0 (initial value)
Integral stops.
1
Integral does not stop.
Pr.
Name
Initial value
Setting
range
Description
464
R113
PID proportional band for
values below set point
9999
0.1 to 1000%
Set the proportional band for negative deviations.
9999
As set in
Pr.129
also for negative deviations.
465
R114
PID integral time for values
below set point
9999
0.1 to 3600 s
Set the integral time for negative deviations.
9999
As set in
Pr.130
also for negative deviations.
466
R115
PID differential time for
values below set point
9999
0.01 to 10 s
Set the differential time for negative deviations.
9999
As set in
Pr.134
also for negative deviations.
467
R116
Second PID proportional
band
9999
0.1 to 1000%
Set the second PID proportional band.
9999
As set in
Pr.129
/
Pr.464
.
468
R117
Second PID integral time
9999
0.1 to 3600 s
Set the second PID integral time.
9999
As set in
Pr.130
/
Pr.465
.
469
R118
Second PID differential time
9999
0.01 to 10 s
Set the second PID differential time.
9999
As set in
Pr.134
/
Pr.466
.
470
R119
Second PID proportional
band for values below set
point
9999
0.1 to 1000%
Set the second PID proportional band for values below
set point.
9999
As set in
Pr.467
.
471
R120
Second PID integral time for
values below set point
9999
0.1 to 3600 s
Set the second PID integral time for values below set
point.
9999
As set in
Pr.468
.
Summary of Contents for A800 Plus Series
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