6 Parameter Settings and Functions
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6.2.1.3.1. Deadband/Overlap Band
In heating and cooling control, it is possible to designate a deadband between heating
and cooling control bands based on SV (Setting Value).
A deadband forms around the SV when DB is set to a positive value. No control
occurs in the deadband area. Therefore, heating and cooling MVs become 0.0% in
the formed deadband.
An overlap band (simultaneous application of heating and cooling MVs) forms around
the SV when DB is set to a negative value.
Group
Preceding
Condition
Parameter Range
Factory
Default
Unit
Control
Operation
Group
PID-PID
PID-ON/OFF
ON/OFF-PID
Dead-Overlap
Band
-Proportional
Band to
+Proportional
Band
0.0
Digit
ON/OFF-
ON/OFF
-999 ~ 0 ~ 999 0
Set deadband to 0 when a deadband or an overlap band is not used.
If input display value is a decimal it is displayed as –999.9 to
999.9
When proportional bands are different, the smaller one takes
precedence.
Input sensor type (input.H, input.L) determines the use of a
decimal point.
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