Mitsubishi Electric MELSEC iQ-R Series User Manual page 27

Buffer memory areas related to control methods
The following table shows the buffer memory areas related to each control method.
Buffer memory Buffer memory
area name address
CH1 Proportional 431
band (P) setting,
CH1 Heating
proportional band
(Ph) setting (in the
R mode)
CH1 Cooling 439
proportional band
(Pc) setting (in the
R mode)
CH1 Integral time (I) 432
setting (in the R
mode)
CH1 Derivative time 433
(D) setting (in the R
mode)
CH1 Manual reset 517
amount setting
The temperature control module automatically sets optimum PID constants when the following functions are
used.
• Auto Tuning Function (Page 38 Auto Tuning Function)
• Self-Tuning Function (Page 47 Self-tuning Function)
Setting range
Two-position P control
control
Fix the setting to 0. 0 to the full scale of the input range ( ())
A set value is Fix the setting to 0.
ignored.
A set value is Fix the setting to 0.
ignored.
■In the standard control or heating-cooling
A set value is
ignored. control
• Setting range: -1000 to 1000 (-100.0% to
100.0%, in increments of 0.1%)
• Default value: 0 (0%)
PD control P control
1 to 3600 (s)
1 to 3600 (s) A set value is
ignored.
A set value is ignored.
PID control
1 to 3600 (s)
1 FUNCTIONS
25
1.2 Control Method
1