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
REMOTE (ON)/LOCAL (OFF) switch
Control computation
Sensor burnout occurs when PV, RSP, AIN2, or AIN4 input burnout occurs.
However, burnout is not detected if input is not conncted.
Manual operation
Manual preset output
Input error preset output
Heating-side preset output
STOP (ON)/RUN (OFF) switch
AUTO (ON)/MAN (OFF) switch
STOP (ON)/RUN (OFF) switch
When Loop-2 sensor
burnout occurs
When Loop-2 sensor
burnout occurs
Normal Normal
MAN
RUNSTOP
Current or
voltage pulse
Relay Current or
voltage pulse
Relay
LPS
24 V loop
power supply
Current
EPO
OH, OL OHc, OLc
Input error preset output
OUT retransmission output OUT2 retransmission output
EPO
PO
Cooling-side preset output
STOP
POc
S/R
OT
O1RS O2RS
RET retransmission output
RTS
MPON
OUTOUT OUT2 OUT2
Heating/cooling computation
RET AL3AL2AL1
Heating-side output limiter Cooling-side output limiter
RUN
For optional suffix code /LP
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
Alarm
AUTO
Equipped as standard Equipped as standard
A/M
(Current when retransmission output) (Current when retransmission output)
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
* After the control output terminal is specified by the parameter OT,
other current output terminals can be used as retransmission output.
Heating-side
output
Heating-side
output
Cooling-side
output
Cooling-side
output
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.
Manual output is prioritized even if
sensor burnout occurs in MAN.
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.