Filter
Top Products
225
CHAPTER 4 FUNCTIONS
4
4.18 Self-tuning Function
(3) Procedure for the self-tuning control
The following is the flow chart for the control.
Self-tuning start
Self-tuning completion
CH Auto tuning status (Xn4 to Xn7) turns on.
(Starting ST)
CH Auto tuning status (Xn4 to Xn7) turns off.
CH Auto tuning status (Xn4 to Xn7) turns on.
(Vibration ST)
PID constants are calculated and changed by
self-tuning.
The module is controlled based on the set
PID constants.
PID constants are calculated by self-tuning.
The setting is changed to PID constants calculated by
self-tuning.
Temperature is controlled by the set PID constants.
CH PID auto-correction status
(b0 of Un\G575, Un\G607, Un\G639, Un\G671)
turns OFF.
CH PID auto-correction status
(b0 of Un\G575, Un\G607, Un\G639, Un\G671)
turns ON.
CH PID auto-correction status
(b0 of Un\G575, Un\G607, Un\G639, Un\G671)
turns OFF.
CH PID auto-correction status
(b0 of Un\G575, Un\G607, Un\G639, Un\G671)
turns ON.
Response failed?
YES
NO
Did the
temperature adjustment control start?
Or did the set value (SV)
change?
YES
NO
Is the
temperature process value (PV)
changed out of the set
value (SV)?
YES
YES
NO
NO
Is the response erratic?