Mitsubishi Electric MELSEC iQ-R Series User Manual page 21

■Heating-cooling control
The module operates as follows outside the setting range of "Adjustment sensitivity (dead band) setting" in "Application
Setting."
Condition
The temperature process value (PV) is below the lower limit of the adjustment
sensitivity (dead band).
The temperature process value (PV) is above the upper limit of the adjustment
sensitivity (dead band).
Temperature
process value (PV)
Set value (SV)
Heating output
(L1H)
OFF
Cooling output
(L1C)
■Three-position control
Three-position control can also be executed by setting a dead band. (Page 31 Dead band setting in the two-position
control (three-position control))
■Setting method (in the R mode)
Set 0 (0 ()) in the following buffer memory areas.
• 'CH1 Proportional band (P) setting' (Un\G431) (Page 245 CH1 Proportional band (P) setting)
• 'CH1 Heating proportional band (Ph) setting' (Un\G431) (Page 247 CH1 Heating proportional band (Ph) setting)
■Setting method (in the Q compatible mode)
Set 0.0% for "Proportion Belt (P) Setting" of "Control basic parameters." (Page 136 Application Setting)
[Navigation window]  [Parameter]  [Module Information]  Target module  [Application Setting]  [Control basic
parameters]
Heating transistor output
status
ON
OFF
ON
ON
OFF
Cooling transistor output
status
OFF
ON
Adjustment sensitivity
(dead band)
Time
1 FUNCTIONS
1.2 Control Method
1
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