YOKOGAWA UT Advanced UT32A, Руководство пользователя

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10-13
IM 05P01D31-01EN
Output
(Control
and
Retransmission)
Functions
10.9 Setting Hysteresis and Dead Band for Heating/
cooling Control Output
Description
In Heating/cooling control, the positive dead band denotes the zone where none of the
heating-side and cooling-side outputs are presented. The negative dead band denotes
the zone where both of the heating-side and cooling-side outputs are presented.
The following shows the case when both the heating side and cooling side are ON/OFF
control.
ON
ON
50%
Cooling-side hysteresis (HYSc)
Neutral (OFF)
Heating-side hysteresis (HYS)
Positive dead band
The following shows the case when both the heating side and cooling side are PID
control.
0
Negative dead band
0
Cooling-side
output
Cooling-side
output
Heating-side
output
Heating-side
output
Output (%)
100
Output (%)
100
Positive dead band
100(%) 100(%) 50
50
0
0
Value of control output before split into
heating- and cooling-side outputs
Value of control output before split into
heating- and cooling-side outputs
10