Differential Control Action Setting; Pid Control Gain Selection - Mitsubishi Electric A800 Plus Series Function Manual

Dancer feedback speed control details
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.
Pr.1015 setting
0 (initial value)
1
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. Name
464 PID proportional band for
R113 values below set point
465 PID integral time for values
R114 below set point
466 PID differential time for
R115 values below set point
467 Second PID proportional
R116 band
468
Second PID integral time
R117
469
Second PID differential time
R118
Second PID proportional
470
band for values below set
R119
point
471 Second PID integral time for
R120 values below set point
86
DANCER FEEDBACK SPEED CONTROL
Operation at limited
manipulated amount
Integral stops.
Integral does not stop.
Initial value
9999
9999
9999
9999
9999
9999
9999
9999
Setting
range
0.1 to 1000% Set the proportional band for negative deviations.
9999 As set in Pr.129 also for negative deviations.
0.1 to 3600 s Set the integral time for negative deviations.
9999 As set in Pr.130 also for negative deviations.
0.01 to 10 s Set the differential time for negative deviations.
9999 As set in Pr.134 also for negative deviations.
0.1 to 1000% Set the second PID proportional band.
9999 As set in Pr.129/Pr.464.
0.1 to 3600 s Set the second PID integral time.
9999 As set in Pr.130/Pr.465.
0.01 to 10 s Set the second PID differential time.
9999 As set in Pr.134/Pr.466.
Set the second PID proportional band for values below
0.1 to 1000%
set point.
9999 As set in Pr.467.
Set the second PID integral time for values below set
0.1 to 3600 s
point.
9999 As set in Pr.468.
Description