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(12)CH Auto tuning status (RX20 to RX23)
This signal turns on when auto tuning of each channel is executed with the program or when the temperature
control module executes self-tuning.
Channel
Standard control
CH1
RX20
CH2
RX21
CH3
RX22
CH4
RX23
*1
Available only under the heating-cooling control (expanded mode). For details on the expanded mode, refer to the
following. (Page 147, Section 8.3.1 (3))
*2
Available only under the mix control (expanded mode). For details on the expanded mode, refer to the following.
(Page 147, Section 8.3.1 (3))
(a) Execution of auto tuning
To execute auto tuning, turn on CH Auto tuning instruction (RY20 to RY23).
This signal is on during auto tuning, and automatically turns off at the completion of the auto tuning.
CH□ Auto tuning instruction
CH□ Auto tuning status
For details on the auto tuning function, refer to the following.
Page 159, Section 8.3.7
(b) Self-tuning
This signal turns on when self-tuning starts. The signal automatically turns off at the completion of the self-
tuning.
Set self-tuning timings in CH Self-tuning setting (address: 2C0H to 2C3H). (Page 356, Appendix 3 (58))
Self-tuning can be executed only in the standard control.
For details on the self-tuning function, refer to the following.
Page 184, Section 8.3.15
Auto tuning status
Heating-cooling
Mix control
control
RX20
RX20
*2
RX21
RX21
*1
RX22
RX22
*1
RX23
RX23
ON
OFF
(RY20 to RY23)
OFF
(RX20 to RX23)
Controlled by the program
Controlled by the temperature control module
Standard
Heating-cooling
ON/OFF status
ON: During auto tuning/self-tuning
OFF: The auto tuning/self-tuning has not been executed or is completed.
ON
During auto tuning
APPENDICES
A
291
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