Mitsubishi Electric MELSEC iQ-R Series User Manual page 33

Dead band setting in the two-position control (three-position control)
Set the dead band in the two-position control.
Three-position control can be achieved by setting a dead band area in addition to areas for the manipulated value for heating
(MVh) 100% and the manipulated value for cooling (MVc) 100%.
Heating only
(manipulated value for cooling (MVc): 0%)
100%
0%
-100%
Setting method
Configure the setting as follows:
[Navigation window]  [Parameter]  Target module  [Application Setting]  [Heating/cooling control setting] 
[Overlap/dead band setting]
Manipulated value
for heating (MVh): 0%
Manipulated value
for cooling (MVc): 0%
(manipulated value for heating (MVh): 0%)
Heating
Set value (SV)
Cooling
Input range
Cooling only
Temperature when
cooling starts
1.6 Overlap/dead Band Function
Heating proportional band (Ph): 0
Cooling proportional band (Pc):
No setting required
Integral time (I):
No setting required
Derivative time (D):
No setting required
Temperature
process value (PV)
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