Specifications

12 13
4896(1/8DIN)Controllers
Status indicator lamps:
Display alarm status(AL1, 2, 3),
manual operation (MAN), and target
setpoint No. (SP2, 3, 4)
Light loader interface:
Communication port for parameter
setting by personal computer
SP display:
Displays target setpoint (SP), control
output, valve opening, and parameter
settings
Active color PV display:
The color of display automatically
switches from Green to Red, or
Red to Green.
9696(1/4DIN)Controllers
Active color
PV display
PV/SP Data display
PV Input
Indication accuracy
Auxiliary Analog Input
Control scan period
Control loops
Control modes
Number of Setpoint(SP)
Control Algorithm
SUPER, Auto tuning
Control Outputs(MV)
Auxiliary Analog Output
(1)
(4 to 20mA)
Loop Power Supply (LPS)
Digital Inputs
Digital Outputs
RS485 Communication Protocols
Approvals
Other specifications
Ambient T, Limits RH
UT321
4 digits Active Color / 4 digits
1 universal input (TCs, RTDs, mV, V)
0.1% 1digit
Not Available
250ms
1
MAN/AUTO
4
ON/OFF, PID (Continuous, Time-proportional),
Heating & Cooling,
SUPER, SUPER2, AT
Select from Relay, Voltage Pulse or 4 to 20mA
1 point except for Heating/Cooling
control ( Cannot use with LPS15V )
2 points, 15V and 24V(option)
2
3
Four-wire, MODBUS, PC-link, Ladder or Coordinated Operation.
General = UL, CE, CSA Front Protection = IP55
Size=48(W)*96(H)*100(D)mm, Power supply =90 to 264V AC, Power consumption=max. 20VA
0 to 50 , 20 to 90%RH
UT321/420/520 Specification Table
(1) Retransmission is available for PV, SP or MV.
UT420
5 digits / 5 digits
1 for remote SP
200ms
1
MAN/AUTO/CAS, RUN/STOP
8
ON/OFF, 3 position, PID (Continuous, Time-proportional), Heating & Cooling
1 point ( Cannot use with LPS15V )
2 points when MV is relay output
1point, 15V
2 or 4
3
UT520
1 for remote SP or secondary PV
50, 100, 200ms
1 or 2 (cascade)
2 or 4
3
UT351
4 digits Active Color / 4 digits
1 universal input (TCs, RTDs, mV, V)
0.1% 1digit
Not Available
250ms
1
MAN/AUTO
4
ON/OFF, Time-proportional PID, Con-
tinuous PID, Heating & Cooling
SUPER, SUPER2, AT
Select from Relay, Voltage Pulse or 4 to 20mA
1 point except for Heating/Cooling
control ( Cannot use with LPS15V )
2 points, 15V and 24V(option)
2
3
Available
Four-wire, Protocol is MODBUS, PC-link, Ladder or Coordinated Operation.
General = UL, CE, CSA Front Protection = IP55
Size=96(W)*96(H)*100(D)mm, Power supply =90 to 264V AC, Power consumption=max. 20VA
0 to 50 : , 20 to 90%RH
PV/SP Data display
PV Input
Indication accuracy
Auxiliary Analog Input
Control scan period
Control loops
Control modes
Number of Setpoint(SP)
Control Algorithm
SUPER, Auto tuning
Control Outputs(MV)
Auxiliary Analog Output
(4 to 20mA)
Loop Power Supply (LPS)
Digital Inputs
Digital Outputs
Industrial Ethernet
RS485 Communication Protocols
Approvals
Other specifications
Ambient T, Limits RH
UT450
5 digits / 5 digits
1 for remote SP
200ms
1
MAN/AUTO/CAS, RUN/STOP
8
ON/OFF, 3 position, Time-proportional PID, Continuous PID, Heating & Cooling
1 point ( Cannot use with LPS15V )
2 points when MV is relay output
2, 3, 6 or 7
3 or 4
Not Available
UT351/450/551 Specification Table
UT551
5 digits Active Color / 5 digits
1 for remote SP or secondary PV
50, 100, 200ms
1 or 2 (cascade)
2, 3, 7 or 8
3 or 7
Not Available
Model and Suffix Codes
Model
UT321
Type
Options
Digital indicating controller, with Active color PV display
Standard type
Heating/cooling type
Standard type with 24V DC loop power supply
None
Communication functions, heater burnout alarm (2 points) Note
Heater burnout alarm (2 points) Note
Suffix Code Description Note
-0
-2
-3
0
1
2
Model
UT420
Type
Options
Digital indicating controller
Standard type
None
Communication functions, remote input, 2 additional DIs
Remote input, 2 additional DIs
DI1, DI2
DI1, DI2,DI3, R/L
DI1, DI2,DI3, R/L
AL1, AL2, AL3
AL1, AL2, AL3
AL1, AL2, AL3
Suffix Code Description Contact input/output available
Contact outputContact input
-0
0
7
8
Model
UT520
Type
Options
Digital indicating controller
Standard type
None
Communication functions, auxiliary analog(remote) input, 2 additional DIs
Auxiliary analog(remote) input, 2 additional DIs
DI1, DI2
DI1, DI2,DI3, DI8
DI1, DI2,DI3, DI8
DO1, DO2, DO3
DO1, DO2, DO3
DO1, DO2, DO3
Suffix Code
Description Contact input/output available
Contact outputContact input
-0
0
7
8
Note:Sensor of heater burnout alarm is CTL-6-S
or CTL-12-S36-8(URD Co.,Ltd., Japan)
To be purchased separately

Model UT320 and UT350 are also available.
Model
UT351
Type
Options
Digital indicating controller, with Active color PV display
Standard type
Heating/cooling type
Standard type with 24V DC loop power supply
None
Communication functions, heater burnout alarm (2 points) Note
Heater burnout alarm (2 points) Note
Ethernet communication*
Suffix Code
Description
Note
-0
-2
-3
0
1
2
A
Note:Sensor of heater burnout alarm is CTL-6-S
or CTL-12-S36-8(URD Co.,Ltd., Japan)
To be purchased separately
*Ethernet option is not applicable with "-3" standard type with 24V DC loop power supply.
Model and Suffix Codes
Model
UT551
Digital indicating controller
Standard type
Position-proportional type
Heating/cooling type
Standard type with 24V DC loop power supply
Position-proportional type with 24V DC loop power supply
None
Communication functions, auxiliary analog(remote) input, 6 additional DIs, 4 additional DOs
Communication functions, auxiliary analog(remote) input, 1 additional DI
5 additional DIs, 4 additional DOs
Auxiliary analog(remote) input, 1 additional DI
With Ethernet communication function
With Ethernet communication function, auxiliary analog (remote) input.
And 1 additional DI
With Ethernet communication function, 5 additional DIs AND 4
additional DOs
With Ethernet communication function, auxiliary analog (remote) input,
6 additional Dis and 4 additional DOs
DI1, DI2
DI1 to DI8
DI1, DI2, DI8
DI1 to DI7
DI1, DI2, DI8
DI1, DI2
DI1, DI2, DI8
DI1 to DI7
DI1 to DI8
DO1, DO2, DO3
DO1 to DO7
DO1, DO2, DO3
DO1 to DO7
DO1, DO2, DO3
DO1, DO2, DO3
DO1, DO2, DO3
DO1 to DO7
DO1 to DO7
Suffix Code
Description Contact input/output available
Contact outputContact input
-0
-1
-2
-3
-4
0
1
2
3
4
A
B
C
D
Options
Type
Model
UT450
Type
Digital indicating controller
Standard type
Position-proportional type
Heating/cooling type
Standard type with 24V DC loop power supply
Position-proportional type with 24V DC loop power supply
None
Communication functions, remote input, 5 additional DIs, 1 additional Alarm
Communication functions, remote input, 1 additional DI
4 additional DIs, 1 additional Alarm
Remote input, 1 additional DI
DI1, DI2
DI1 to DI6, R/L
DI1, DI2, R/L
DI1 to DI6
DI1, DI2, R/L
AL1, AL2, AL3
AL1 to AL4
AL1, AL2, AL3
AL1 to AL4
AL1, AL2, AL3
Suffix Code
Description
Contact input/output available
Contact outputContact input
-0
-1
-2
-3
-4
0
1
2
3
4
Options

Model UT550 are also available.