YOKOGAWA UP55A - Page 456

18-17
IM 05P02C41-01EN
Parameters
18
PIDSettingMenu(Menu:PID)(Continuedfrompreviouspage)
Parameter
symbol
Name
Display
level
Settingrange Initialvalue
Pc
Cooling-side
proportional band
EASY
0.0 to 999.9%
(Cooling-side ON/OFF control
applies when 0.0% in Heating/
cooling control)
5.0%
Ic
Cooling-side
integral time
EASY
OFF: Disable
1 to 6000 s
240 s
Dc
Cooling-side
derivative time
EASY
OFF: Disable
1 to 6000 s
60 s
OHc
Cooling-side control
output high limit
EASY 0.1 to 105.0%, (OLc<OHc) 100.0%
OLc
Cooling-side control
output low limit
EASY 0.0 to 104.9%, (OLc<OHc) 0.0%
HYSc
Cooling-side
ON/OFF control
hysteresis
EASY 0.0 to 100.0% 0.5%
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%
3.0%
PO
Preset output
Heating-side preset
output (in Heating/
cooling control)
EASY
-5.0 to 105.0%
InRESETmode,xedcontrol
output can be generated. In
Position proportional control, Valve
opening can be set
0.0%
POc
Cooling-side preset
output
EASY
-5.0 to 105.0%
InRESETmode,cooling-sidexed
control output can be generated.
0.0%
In Cascade control, the following parameters are also displayed for secondary loop. (the LP2 lamp
is lit)
• Parameter: Pc, Ic, Dc, OHc, OLc, HYSc, DB, PO, POc
18.2ListofParameters