YOKOGAWA UTAdvanced UT55A, User Manual

Page: 423 / 476

18-12
IM 05P01C31-01EN
PID Setting Menu (Menu: PID) (Continued from previous page)
Parameter
symbol
Name
Display
level
Setting range Initial value
SU.HY
Sub-hysteresis (in
Two-position two-
level control)
EASY
0.0 to 100.0% of PV input range
span (EUS)
0.5 % of PV
input range
span
HY.UP
Upper-side
hysteresis (in ON/
OFF control)
EASY
0.0 to 100.0% of PV input range
span (EUS)
0.5 % of PV
input range
span
HY.LO
Lower-side
hysteresis (in ON/
OFF control)
EASY
0.5 % of PV
input range
span
DR
Direct/reverse
action switch
STD
RVS: Reverse action, DIR: Direct
action
RVS
SU.DR
Sub-direct/reverse
action switch (in
Two-position two-
level control)
STD DIR
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% 0.0%
SU.PO
Sub-preset output
(in Two-position
two-level control)
EASY 0%, 100% 0%
POc
Cooling-side preset
output
EASY -5.0 to 105.0% 0.0%
In Cascade control, the following parameters are also displayed for secondary loop. (the LP2 lamp
is lit)
• Parameter: DR, Pc, Ic, Dc, OHc, OLc, HYSc, DB, PO, POc
18.2 List of Parameters