YOKOGAWA UT55A - Position Proportional Loop Control with PV Auto-Selector (4 Inputs) Function Block Diagram (Only for UT55 A)

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IM 05P01C31-01EN
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PositionProportionalLoopControlwithPVAuto-selector(4inputs)FunctionBlockDiagram(onlyforUT55A)
Target setpoints 1 to 8
COM
LOCALREMOTE
SP ramp rate
SP limiter
DI26 DI46PV AIN2
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
Ratio bias computation
PV auto-selector (Max., Min., Ave., Diff.)
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
10-seg. linearizer approx./bias
PMD An, Bn
10-seg. linearizer approx./bias
PMD An, Bn
PV.AS
P.UNI P.DP P.RH, P.RL
CNT ALG
UPR, DNR TMU
SPNO SP
R/L
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
RSP
Input type
Input unit
Input range/scale
Analog input bias
Square root extraction
Analog input filter
A.BS
A.FL
A.SR A.LC
UNIT
IN
RH, RL
SDP
SH, SL
AIN4
Input type
Input unit
Input range/scale
Analog input bias
Square root extraction
Analog input filter
A.BS
A.FL
A.SR A.LC
UNIT
IN
RH, RL
SDP
SH, SL
DI16DI2 DI3DI1
Control computation
Manual operation
Input error preset output
Preset output
AUTO (ON)/MAN (OFF) switch
REMOTE (ON)/LOCAL (OFF) switch
STOP (ON)/RUN (OFF) switch
AUTO
Normal
MAN
RUNSTOP
Output limiter
EPO
OH, OL
PO
S/R
Signal comparison
Feedback input
Direct/reverse signal
Valve position sliding
resistor or current
Motor-operated valve
Relay output
VALV
FBIN
M
Equipped as standard Equipped as standard Equipped as standard
Current
LPS
24 V loop
power supply
Current
OUT RET AL3AL2AL1
PMD
OU.H OU.L
HYS
DB
An, Bn
Split computation
10-seg. linearizer approx./bias
RET.H RET.L
PMD An, Bn
Split computation
10-seg. linearizer approx./bias
OUT retransmission output
O1RS
RET retransmission output
RTS
Alarm
A/M
No function
is assigned
to DI3, DI26,
and DI46.
PV input 1 PV input 2 PV input 3 PV input 4 Contact inputs
Aux. analog (remote) input (E1-terminal area) Aux. analog input (E2-terminal area) Aux. analog input (E4-terminal area)Equipped as standard
Necessary for Loop control with PV auto-selector for 3 inputs or 4 inputs
When sensor
burnout occurs
In Estimating-type position proportional control, the limiter function does not
work on output operation.
The reverse-signal relay turns on when being limited by low limit.
The direct-signal relay turns on when being limited by high limit.
Sensor burnout occurs when PV, RSP, AIN2, or AIN4 input burnout occurs.
However, burnout is not detected if input is not conncted.
Position Proportional Computation Output cannot be calculated by ladder program.
In Manual operation, the relay turns on while the
or key is pressed. Output limiter does not work.
H relay
( key)
L relay
( key)
Alarm 1
(PV high limit)
Alarm 2
(PV low limit)
Alarm 3
(PV high limit)
Terminal Parameter Function
Analog signal Contact signal Front panel key
Legend
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.
RMS
*1: RS-485, Ethernet, PROFIBUS-DP,
DeviceNet, CC-Link
(For Detailed model) UT55A optional suffix code /R1 is necessary.
(For Detailed model) When UT55A
optional suffix code /A2.
(For Standard model) When UT55A
suffix code: Type 2 = 7.
(For Detailed model) When UT55A
optional suffix code /A4 or /AC4.
(For Standard model) When UT55A
suffix code: Type 2 = 7.
(For Detailed model)
DI16 is equipped when UT55A optional suffix code /R1.
DI26 is equipped when UT55A optional suffix code /A2.
DI46 is equipped when UT55A optional suffix code /A4
or /AC4.
(For Standard model)
DI16 is equipped when UT55A suffix code: Type 2 = 1,
2, 4, 5, or 7.
(For Standard model) UT55A suffix code: Type 2 = 1, 2, 4, 5, or 7 is necessary.
For the model with optional suffix code /DR: Refer to the function
block diagram of Loop control with PV auto-selector (2 inputs).
Universal input (E1-terminal area) can be used when UT55A
optional suffix code /U1. However, DI16 does not exist.
8.1SettingControlMode(CTLM)