Panasonic FP7 Series - Page 490

Items Description
Auto-tuning
By measuring process response, the respective optimal values for Kp, Ti and Td as PID
parameters are measured. When auto-tuning is executed, the estimated results are
reflected in the parameter area after auto-tuning is complete.
■
Parameter table settings
[S]
[S+1]
[S+2]
[S+3]
[S+4]
[S+5]
[S+6]
[S+7]
[S+8]
[S+9]
[S+10]
[S+11]
[S+29]
～
～
～
～
Control mode
Set point value (SP)
Process value (PV)
Manipulated value (MV)
MV lower limit
MV upper limit
Proportional gain (Kp)
Time integral (Ti)
Time derivative (Td)
Control interval (Ts)
Auto-tuning progress
PID operation work area
■
Setting of parameters: [S] to [S+29]
Operand Parameter name Setting range Setting method
[S] Control mode
H0 to H3
When not executing auto-tuning
H0: Derivative-first, reverse operation
H1: Derivative-first, forward operation
H2: Proportional-plus-derivative-first, reverse operation
H3: Proportional-plus-derivative-first, forward operation
H8000 to
H8003
When executing auto-tuning
H8000: Derivative-first, reverse operation
H8001: Derivative-first, forward operation
H8002: Proportional-plus-derivative-first, reverse operation
H8003: Proportional-plus-derivative-first, forward operation
[S+1]
Set point value
(SP)
K0 to K10000
Set the target value for the process control within the following
range.
[S+2]
Process value
(PV)
K0 to K10000
Use an A/D conversion unit, etc., to input the current value of
process control.
[S+3]
Output value
(MV)
K0 to K10000
PID operation result is stored. Output the value using a D/A
converter, etc.
[S+4] Output lower limit K0 to K9999
Specify the output value (MV) range. Values for the specified
range are output.
[S+5]
Output upper
limit
K1 to K10000
[S+6]
Proportional gain
(Kp)
K1 to K9999
(0.1 to 999.9)
Specify the coefficient used for PID operation. The setting
value × 0.1 is the actual proportional gain.
(Note 1)
10.11 PID (PID Operation)
10-40 WUME-FP7CPUPGR-12