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CHAPTER 4 FUNCTIONS
4
4.20 Simultaneous Temperature Rise Function
(6) The simultaneous temperature rise parameter setting using self-tuning
The control response at the time of temperature rise is constantly monitored during self-tuning and the
simultaneous temperature rise parameter is calculated based on the characteristics of a controlled object.
For details on the self-tuning function, refer to the following.
Page 223, Section 4.18
(a) Operation with the simultaneous temperature rise parameter setting using self-
tuning
The Q64TCN operates as following.
Operation of the Q64TCN
1
When self-tuning is normally started up, CH Auto tuning status (Xn4 to Xn7) is turned on and the simultaneous
temperature rise parameter is calculated.
2
The calculated value is stored in the buffer memory when the simultaneous temperature rise parameter is normally
calculated. Then CH Simultaneous temperature rise parameter correction status (b1 of Un\G575, Un\G607,
Un\G639, Un\G671) is turned 1 (ON), CH Auto tuning status (Xn4 to Xn7) is turned off, and the module is shifted
to the PID control.
CH Auto tuning status
(Xn4 to Xn7)
Control status
CH Simultaneous temperature rise gradient data
(Un\G731, Un\G747, Un\G763, Un\G779) and
CH Simultaneous temperature rise dead time
(Un\G732, Un\G748, Un\G764, Un\G780)
CH Simultaneous temperature rise parameter
correction status
(b1 of Un\G575, Un\G607, Un\G639, Un\G671)
OFF
Calculated
value
PID control Self-tuning PID control
OFF
ON
ON
0
Executed by the Q64TCN
Temperature control start, set value (SV) change or
oscillation detected