YOKOGAWA UT55A User Manual

18-16
IM 05P01C31-01EN
18.2.2 SetupParameters
ControlFunctionSettingMenu(Menu:CTL)
Parameter
symbol
Name
Display
level
Setting range Initialvalue
CTLM Control mode STD
SGL: Single-loop control
CAS1: Cascade primary-loop
control
CAS2: Cascade secondary-loop
control
CAS: Cascade control
BUM: Loop control for backup
PVSW:Loop
controlwithPV
switching
PVSEL:LoopcontrolwithPVauto-
selector
PVHD:LoopcontrolwithPV-hold
function
* When using the ladder program,
the control mode cannot be
changed.
SGL
CNT Control type EASY
PID: PID control
ONOF: ON/OFF control (1 point of
hysteresis)
ONOF2: ON/OFF control (2 points
of hysteresis)
2P2L: Two-position two-level
control
H/C: Heating/cooling control
S-PI: Sample PI control
BATCH: Batch PID control
FFPID: Feedforward control
Standard type:
PID
Heating/
cooling type:
H/C
ALG PID control mode PRO
0: Standard PID control mode
1: Fixed-point control mode
0
SPGR.
Number of SP
groups
STD 1 to 8 8
ALNO. Number of alarms PRO 1 to 8 4
ZON ZonePIDselection STD
0: SP group number selection 1
1:ZonePID
selection(selectionby
PV)
2:ZonePIDselection(selectionby
target SP)
3: SP group number selection 2
4:ZonePIDselection(selectionby
SP)
0
PIDG.
Number of PID
groups
STD 1 to 8 8
SMP
Input sampling
period (control
period)
STD
50: 50 ms (Note)
100: 100 ms
200: 200 ms
100
In Cascade control, the following parameters are also displayed for secondary loop. (the LP2 lamp
is lit)
• Parameter: CNT, ALG, ALNO.
The parameter CNT of Loop 2 displays PID and H/C.
Note: Availablewhen
thecontrolmodeisnotCascadecontrol(CTLM≠CAS)andthefollowing
functions are not used: "SUPER" function, "SUPER 2" function.
18.2ListofParameters

YOKOGAWA UT55A Specifications

General

Brand	YOKOGAWA
Model	UT55A
Category	Temperature Controller
Language	English