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CHAPTER 4 FUNCTIONS
4
4.20 Simultaneous Temperature Rise Function
(2) Conditions for the simultaneous temperature rise function
The simultaneous temperature rise function can be executed when all the following conditions are satisfied:
• When the control is started
• When the set value (SV) is larger than the temperature process value (PV)
• When the standard control is selected on Switch Setting (not executed in the heating-cooling control)
( Page 299, Section 6.2)
• When the simultaneous temperature rise parameter has been determined (or has been set) and is not 0 (the
default value)
When the following buffer memory area setting is less than 100%, reaching time may vary.
•CH Upper limit output limiter (Un\G42, Un\G74, Un\G106, Un\G138) ( Page 110, Section 3.4.2 (19))
(3) Setting method (dividing channels into groups)
Set the groups in the following buffer memory area.
•CH Simultaneous temperature rise group setting (Un\G730, Un\G746, Un\G762, Un\G778) ( Page
154, Section 3.4.2 (80))
(4) Simultaneous temperature rise parameter
The simultaneous temperature rise parameter is classified into the following two buffer memory values.
Before executing the simultaneous temperature rise function, the simultaneous temperature rise parameter
needs to be automatically calculated (or arbitrarily set).
(a) Automatic calculation
The simultaneous temperature rise parameter can be automatically calculated using the following two
methods:
• Simultaneous temperature rise AT ( Page 242, Section 4.20 (5))
• Simultaneous temperature rise parameter setting using self-tuning ( Page 245, Section 4.20 (6))
If the setting in Peak current suppression control group setting (Un\G784) is changed after the simultaneous temperature
rise parameter is calculated, the intended control may not be performed. If so, calculate the simultaneous temperature rise
parameter again.
For details on the peak current suppression function, refer to the following.
Page 233, Section 4.19
Buffer memory area name
Buffer memory address
Reference
CH1 CH2 CH3 CH4
CH Simultaneous temperature rise
gradient data
Un\G731 Un\G747 Un\G763 Un\G779 Page 154, Section 3.4.2 (81)
CH Simultaneous temperature rise
dead time
Un\G732 Un\G748 Un\G764 Un\G780 Page 155, Section 3.4.2 (82)