YOKOGAWA UT55A User Manual

8-19
IM 05P01C31-01EN
Control Functions
n
CascadeSecondary-loopHeating/coolingControlFunctionBlockDiagram
Target setpoints 1 to 8
AUTO, MANCAS
SP ramp rate
SP limiter
DI16PV RSP
Input type
Input unit
Input range/scale
Analog input bias
Square root extraction
Analog input filter
Input type
Input unit
Input range/scale
Analog input bias
Square root extraction
Analog input filter
10-seg. linearizer approx./bias
PV input bias
PV input filter
A.BS
A.FL
BS
FL
PMD An, Bn
10-seg. linearizer approx./bias
PMD An, Bn
10-seg. linearizer approx./bias
PMD An, Bn
CNT ALG
UPR, DNR TMU
SPNO SP
SPH, SPL
A.SR A.LC
UNIT
IN
RH, RL SDP SH, SL
A.BS
A.FL
A.SR A.LC
UNIT
IN
RH, RL SDP SH, SL
DI3DI2DI1
Control computation
Ratio bias computation
RT RBS
Remote input filter
RFL
Manual operation
Manual preset output
Input error preset output
Heating-side preset output
AUTO
When sensor
burnout occurs
Normal Normal
MAN
RUNSTOP
EPO
OH, OL OHc, OLc
Input error preset output
When sensor
burnout occurs
EPO
PO
Cooling-side preset output
RUN
POc
S/R S/R
MPON
Heating/cooling computation
Heating-side output limiter Cooling-side output limiter
STOP
Current or
voltage pulse
Relay Current or
voltage pulse
Relay
LPS
24 V loop
power supply
Current
OUT retransmission output OUT2 retransmission output
OT
O1RS O2RS
Target setpoint output
RTS
Heating-side
output
Heating-side
output
OUTOUT
Cooling-side
output
Cooling-side
output
OUT2 OUT2 RET
* After the control output terminal is specified by the parameter OT,
other current output terminals can be used as retransmission output.
Output terminal assignment
PMD
OU.H OU.L OU2.H OU2.L
An, Bn PMD An, Bn
Split computation
10-seg. linearizer approx./bias
Split computation
10-seg. linearizer approx./bias
RET.H RET.L
PMD An, Bn
Split computation
10-seg. linearizer approx./bias
Equipped as standard
A/M
(ON in AUTO, MAN, and STOP)
Equipped as standard Equipped as standard
AL3AL2AL1
Tracking
switch
Alarm Tracking switch
(to Loop-1
controller)
(Current when retransmission output) (Current when retransmission output)
PV input
Equipped as standard
Cascade input
(from Loop-1 controller)
Contact inputs
(from Loop-1 controller) Cascade (OFF→ON)
Automatic (OFF→ON)
Manual (OFF→ON)
(to Loop-1 controller)
Terminal Parameter Function
Analog signal Contact signal Front panel key
Legend
Alarm 1
(PV high limit)
Alarm 2
(PV low limit)
PV display SP display
Input ladder calculation program (signal goes to the control computation as is when without ladder program). For ladder program, see the LL50A Parameter Setting Software User’s Manual.
Output ladder calculation program (signal goes to the output as is when without ladder program). For ladder program, see the LL50A Parameter Setting Software User’s Manual.
Manual output is prioritized even if
sensor
burnout occurs in MAN.
Switch from CAS (contact ON) to AUTO (contact
OFF) at FAIL of Loop-1 controller
Universal input (E1-terminal area) can be used
when UT55A/UT52A optional suffix code /U1.
However, DI16 does not exist.
(For Detailed model)
Cascade input can be used when UT55A/UT52A
optional suffix code /R1 or /RCH1.
(For Standard model)
Cascade input can be used when UT55A suffix
code: Type 2 = 1, 2, 4, 5, or 7; UT52A suffix code:
Type 2 = 1 or 2.
(For Detailed model)
DI16 is equipped when UT55A/UT52A optional
suffix code /R1 or /RCH1.
(For Standard model)
DI16 is equipped when UT55A suffix code: Type 2 =
1, 2, 4, 5, or 7; UT52A suffix code: Type 2 = 1 or 2.
8
8.1SettingControlMode(CTLM)

YOKOGAWA UT55A Specifications

General

Brand	YOKOGAWA
Model	UT55A
Category	Temperature Controller
Language	English