YOKOGAWA UP35A, Руководство пользователя

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8-16
IM 05P02D41-01EN
When both the Heating Side and Cooling Side are in ON/OFF Control:
The following shows the operation example.
50%
ON
ON
Cooling-side hysteresis (HYSc)
Neutral (OFF)
Heating-side hysteresis (HYS)
Positive dead band (DB)
Dead Band (DB)
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.
0 0
50
50
0
0
Negative dead band
Cooling-side
output
Cooling-side
output
Heating-side
output
Heating-side
output
Output (%)
100
Output (%)
100
Positive dead band
100(%)
100(%)
Value of control output before split into
heating- and cooling-side outputs
Value of control output before split into
heating- and cooling-side outputs
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
CNT Control type EASY
PID: PID control
ONOF: ON/OFF control (1
point of hysteresis)
ONOF2: ON/OFF control (2
points of hysteresis)
H/C: Heating/cooling control
CTL
HYS
Hysteresis (in ON/OFF
control, or Position
proportional control)
Heating-side ON/OFF
control hysteresis
(in Heating/cooling
control)
EASY
In ON/OFF control: 0.0 to
100.0% of PV input range span
(EUS)
In Heating/cooling control or
Position proportional control:
0.0 to 100.0%
PID
HYSc
Cooling-side ON/OFF
control hysteresis
EASY 0.0 to 100.0%
DB
Output dead band
(in Heating/cooling
control or Position
proportional control)
EASY
In Heating/cooling control:
-100.0 to 50.0%
In Position proportional control:
1.0 to 10.0%
Note1: The PID number (1 to 4, or R) is displayed on Group display while the parameter HYS,
HYSc, or DB is displayed.
8.2 Setting Control Type (CNT)