Yokogawa UT450 Data sheet

<<Contents>> <<Index>>

General
Specifications

MODEL UT450
Digital Indicating Controller

GS 05D01C12-01E

■General

Model UT450 Digital Indicating Controller is a simple,
micro-processor based digital indicating controller with
basic control capability and the user-friendly large
numerical display. The UT450 features as standard many
functions which are necessary for various control applica­tions, and all of these functions such as control function,
control computation function, signal computation function,
etc. can be configured by using the keys on the front panel.
The instrument has an Auto-tuning, an overshoot
suppressing function "SUPER" and a hunting suppressing
function "SUPER2" built in as standard. It is suitable for a
diverse range of applications, with position-proportional
control and heating/cooling control models also available.

■Main Features

• Extra-large digital display allows the indicated values to be
read even from a long distance. LEDs of 20 mm height are
used for the process variable display. This is a 5-digit
display for higher resolution.

• Enabling the operator to start control operation immedi­ately after simply entering the settings.

• Parameters can be easily set using a personal computer.
("Parameter setting tool (model LL100)" sold separately is
required.)

• Universal input and output enables users to set or change
freely the type of measured inputs, measurement range,
type of control output, etc. from the front panel.

• In addition to general purpose models (universal output),
the position-proportional model (relay output) or the
heating/cooling control model (universal output) can be
specified.

• Contact inputs (up to 7 points) can be employed and
functions assigned to each contact (The maximum number
of points varies depending on the specification code.)

• Various communication function are provided.
Communication is possible with personal computer,
programable logic controller, and other controllers.

■Functional Specifications

● Control Computation Functions

The following control computation functions can be
selected:

Target setpoint and PID parameter:

Zone PID selection:

Auto-tuning:

"SUPER" function:

Continuous PID control, Time-proportional
PID control, Relay ON/OFF control, Position­proportional PID control (for UT450-1■■) and
Heating/Cooling control (for UT450-2■■).

Maximum eight sets of target setpoint and PID
parameter can be set.

PID parameter set switching in up to 7
measured input zones.

Available as standard.
Overshoots generated by abrupt changes in the

target setpoint or by disturbances can be
suppressed.

UT450

UT450E

“E” indicates the
model with expanded
functions.

"SUPER2" function:

The function stabilizes the state of control that
is unstable due to hunting, etc. without
requiring any change in PID constants, when
the load and/or gain varies greatly, or when
there is a difference between the characteris­tics of temperature zones.

Preset output function:

When the instrument is in STOP mode,
measured input is burnt-out, or an abnormality
is found in an input circuit, a preset setpoint is
output as a control output.

Control cycle time: 200 ms

Operation Mode Switching

(Note: Communication enables all the following

mode switching to be executed.)

AUTO/MANUAL switching:

Bumpless switching between automatic
operation mode and manual control mode is
available by using the front key or contact
input. The contact input has priority over
front key input or switching by communica­tion.

RUN/STOP switching:

Switching by contact input (bumpless for
switching from STOP to RUN). The contact
input has priority over switching by communi­cation. In RUN mode, control computation is
activated. In STOP mode, control computa­tion ceases and a preset value is output as a
control output while other functions operate
normally.

REMOTE/LOCAL switching:

Switching between remote setpoint and local
setpoint by instrument operation or contact
input. The contact input has priority over
instrument operation or switching by
communication. For remote to local switch­ing, either bumpless tracking (employing the
remote setpoint on switching as the local
setpoint) or without tracking (directly
switching the local setpoint) can be specified.

GS 05D01C12-01E

© Copyright Feb. 2000 (YK)

1st Edition Mar. 2000 (YG)

<<Contents>> <<Index>>

2

Control Parameters Setting Range

Proportional band: 0.1 to 999.9%

0.0 to 999.9% (for heating/cooling PID

control) 0.0% available for ON/OFF control
Integral time: 1 to 6,000 s, or OFF (for Manual reset)
Derivative time: 1 to 6,000 s, or OFF
ON/OFF control hysteresis: 0.0 to 100.0% of measured

input range width
Preset output: -5.0 to 105.0% (0 mA or less cannot be

output)
Output limiter:

Setting range: -5.0 to 105.0% for both high

and low limits

However, "low limit setpoint < high limit

setpoint" must be satisfied.

In case of heating/cooling PID control, upper

limiter for heating and upper limiter for

cooling.
Shutdown function:

When manual control is carried out with 4 to

20 mA output, control output can be output

down to about 0 mA (shutdown is specified

for -5.0% or less).
Rate-of-change limiter for output:

OFF or 0.1 to 100.0%/s
Deadband for heating/cooling control:

-100.0 to 50.0% for output range

Deadband for position-proportional control:

1.0 to 10.0% for output

● Configuration of Input/Output Signal

Measured Input Computations

Input processing, Bias addition (-100.0 to 100.0%), and First
order lag filter (OFF, time constant 1 to 120 s)

Remote Input Computations

(Applied to remote input only)

Input processing, Bias addition (-100.0 to 100.0%), Ratio
multiplication (0.001 to 9.999), First order lag filter (OFF,
time constant 1 to 120 s)

● Alarm Functions

Alarm types:

PV high limit, PV low limit, Deviation high

limit, Deviation low limit, Deenergized on

deviation high limit, Deenergized on deviation

low limit, Deviation high and low limits, High

and low limits within deviation, Deenergized

on PV high limit, Deenergized on PV low

limit, SP high limit, SP low limit, Output high

limit, Output low limit.
Alarm setting range:

PV/SP alarm: -100 to 100% of measured input

range

Deviation alarm: -100 to 100% of measured

input range width

Output alarm: -5.0 to 105.0% of output range

Alarm hysteresis: 0.0 to 100.0% of measured

input range width
Stand-by action:

Stand-by action can be set to make PV/

deviation alarm OFF during start-up or after

SP change until SP reaches the normal region.

Delay timer:

0.00 to 99.59 (minute, second)
An alarm is output when the delay timer
expires after the alarm setpoint is reached.
Setting for each alarm is possible.

Timer function (stabilization of control status notification

event) (Alarm1 only)
This function sets the alarm 1 output to ON
when a preset time (timer setting) elapses after
a PV has reached the control target setpoint
hysteresis band to notify that control
processing has reached its stabilized status.
Restarted in RUN/STOP or target value
switching.

Other alarm actions

Sensor grounding alarm: Detects sensor
deterioration and outputs an alarm.
Falt-diagnosis alarm: For input burn-out, A/D
conversion error, or thermocouple reference
junction compensation error.
FAIL output: Abnormality in software or
hardware.

Number of alarm settings: 4 (maximum)

The alarm status can be read via communica­tion in addition to output as the above alarm
output.

Alarm output points (see also the item "Contact output")

• Number of contact (relay) outputs:
3 (standard)

• Number of contact (transistor open collector)
outputs:
1 (when optional specification code is
specified as 1 or 3)

Any of PV alarm, deviation alarm, SP alarm, output
alarm, Falt-diagnosis alarm, sensor grounding alarm
and FAIL output can be assigned to contacts for the
above number of outputs. However, the timer delay
alarm can be assigned to the alarm 1 output only.

● Display and Operation Functions

PV Display

PV1 is displayed on the 5-digit display. The number of
display digits is 4 or 5. For thermocouple or RTD, data
below the decimal point can be set not to display. The
display range is -19999 to 30000 and the display span is
30000 or less. [450.00 appearing in the product photograph
on page 1 cannot actually be displayed.]

Setpoint Display

A parameter name is displayed in the 3-digit display and data
in the 5-digit display. There are four kind of displays of
operation, operating parameter setting, setup parameter
setting and SELECT display.

Operating display:

Setpoint, control output, etc. are displayed.

Operating parameters setting display:

The Operating parameters, which are mainly
changed during operating, such as PID
constant, are displayed.

Setup parameters setting display:

The Setup parameters to configure the
functions of the instrument before starting
operation are displayed.

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

3

SELECT display:

Up to five displays which are frequently
accessed can be selected from the Operating
parameters setting display and Setup param­eters setting display to be displayed in the
SELECT display.

Status Lamps

Alarm indicating lamp:

Four lamps, AL1, AL2, AL3, and AL4

Operation mode indicating lamp:

REM (remote operation), MAN (manual mode
operation)

Deviation indicating lamp:

▲Plus deviation, ▼Minus deviation, and
deviation in normal range

Operation Keys

m, n keys:Increase or decrease setpoints and other

parameters displayed in the setpoint display.

SET/ENT key: Used for setting or changing set data,

switching the displayed contents, and
switching operation modes except for A/M.

A/M key: Operation mode switching (Auto/Man)

Security Function

Key-lock from parameters setting and
operation can be inhibited by a password.

Status lamps

Deviation (m, j, .)
Remote operation (REM)
Manual operation (MAN)

Communication port for light loader

Parameters are set via communication from a
personal computer.

UT450

Measured value (PV) display unit

Displays PV and error codes when
errors are detected.

Data display unit

Displays setpoints (SP), output
values, valve opening, or
parameters.

Operation keys

Increase/decrease of the setting data (m, n)
Screen switching/parameter selection/entry of set
data (SET/ENT)
Auto/manual operation mode switching (A/M)

● Communication Functions

(For optional specification code ■■1 or ■■2 only)

This controller has 4 types of communication protocol with
one communication interface. Communication is possible
with personal computer, programmable logic controller, and
other controllers.

Communication Protocol

Computer link communication:

Communication protocol with a personal
computer

Ladder communication:

Communication protocol with programmable
logic controllers.

MODBUS communication:

Communication protocol with a personal
computer or PLC.

Coordinated operation:

Protocol for coordinated operation with more
than one GREEN SERIES controller. The
UT450 controller can be connected as a
master or slave station.

Alarm indicating lamps

Displays alarms (AL1, AL2, AL3,
or AL4).

RS-485 Communication Interface

The RS-485 communication interface (conforms to EIA
RS485) can be used for personal computer link, ladder
communication, MODBUS communication, or for coordi­nated operation.

Maximum number of connectable controllers:

GREEN SERIES controller 31
Maximum communication distance: 1200 m
Communication method:

Two-wire half-duplex or four-wire half-

duplex, start-stop synchronization, and non-

procedural
Communication rate:

600, 1200, 2400, 4800, or 9600 bps

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

Examples of Communication System Configuration Diagram

(1)

Personal computer link communication/MODBUS communication

4

(2) Ladder communication

Personal computer

PV

PV

PV2

AL

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

PV

PV2

PV2

AL

AL

REM

REM

MAN1

MAN1

MAN2

MAN2

STP

STP

CAS

CAS

A/M

A/M

DISP

DISP

SET/ENT

SET/ENT

PV

PV2

AL

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

UT450, UT420
Digital indicating controller

(3) Coordinated operation

PV

PV2

UP750, UP550 Program controller

AL

REM
MAN1
MAN2
STP
CAS

or

A/M

DISP

SET/ENT

UT750, UT550, UT520, UT450, UT420 Digital indicating controller

PV

PV

PV2

AL

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

PV

PV2

PV2

AL

AL

REM

REM

MAN1

MAN1

MAN2

MAN2

STP

STP

CAS

CAS

A/M

A/M

DISP

DISP

SET/ENT

SET/ENT

PV

PV2

AL

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

UT450, UT420
Digital indicating controller

■Hardware Specifications

● Input/Output Signal Specifications

Measured Input Signal

Number of input points: 1
Input type, measurement range, and measurement

Sampling period: 200 ms
Burnout detection:

Input bias current: 0.05 µA (for TC or RTD b-terminal)
Specified current(RTD): about 0.13 mA
Input resistance: 1 MΩ or more for TC or mV input

Allowable signal source resistance:

Allowable leadwire resistance (for RTD input):

Allowable input voltage:

Noise rejection ratio:

accuracy:
The type of input and measurement range can
be specified using the input range code shown
in the table below.

Activated for thermocouple (TC) input, RTD
input, or standard signal of 0.4 to 2 V or 1 to
5 V.
Possible to specify a travel of upscale,
downscale, or off.
For standard signal input, set to burn out at

0.1 V or less.

Approx 1 MΩ for DC voltage input
250 Ω or less for TC or mV input

Signal source resistance effect 0.1 µV/Ω or
less
2 kΩ or less for DC voltage input
Signal source resistance effect
Approx. 0.01%/100 Ω

Maximum 150 Ω/one wire (Lead resistances
of three wires must be equal.)
However, it must be 10 Ω/one wire for the
range of -150.0 to 150.0°C.
Effect of wiring resistance: ±0.1°C/10Ω

±10 V DC for TC/mV/RTD input
±20 V DC for DC voltage input

Normal mode 40 dB (50/60 Hz) or more
Common mode 120 dB (50/60 Hz) or more

MELSEC-A

Programmable logic controllor

PV

PV

PV2

PV2

AL

AL

REM

REM

MAN1

MAN1

MAN2

MAN2

STP

STP

CAS

CAS

A/M

A/M

DISP

SET/ENT

PV

PV2

AL

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

DISP

SET/ENT

UT450, UT420
Digital indicating controller

Reference junction compensation error:

±1.0°C (15 to 35°C), ±1.5°C (0 to 15°C and

35 to 50°C)
Applicable standards:

JIS, IEC, and DIN (ITS-90) for TC and RTD

PV

PV2

AL

1

REM
MAN1
MAN2
STP
CAS

A/M

DISP

SET/ENT

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

5

Input type

Input range

Unspecified(when shipped from the factory)

Thermocouple

K

J
T

B

S
R
N

E
L (DIN)
U (DIN)

W (DIN)
Platinel 2
PR20-40

W97Re3-W75Re25

RTD

JPt100

Pt100

Standard
signal

0.4 to 2V
1 to 5V
0 to 2V

DC voltage

0 to 10V

-10 to 20mV
0 to100mV

code

OFF

1
2
3
4
5
6

7

8
9

10

11
12
13
14
15
16

17

18
30
31
35
36
37
40
41
50
51
55
56

Instrument

range (°C)

Instrument

range (°F)

Set the data item PV input type “IN” to the OFF option to leave the PV input type undefined.

-270.0 to 1370.0°C

-270.0 to 1000.0°C

-200.0 to 500.0°C

-200.0 to 1200.0°C

-270.0 to 400.0°C

0.0 to 400.0°C

0.0 to 1800.0°C

0.0 to 1700.0°C

0.0 to 1700.0°C

-200.0 to 1300.0°C

-270.0 to 1000.0°C

-200.0 to 900.0°C

-200.0 to 400.0°C

0.0 to 400.0°C

0.0 to 2300.0°C

0.0 to 1390.0°C

0.0 to 1900.0°C

0.0 to 2000.0°C

-200.0 to 500.0°C

-150.00 to 150.00°C

-200.0 to 850.0°C

-200.0 to 500.0°C

-150.00 to 150.00°C

0.400 to 2.000 V

1.000 to 5.000 V

0.000 to 2.000 V

0.00 to 10.00 V

-450.0 to 2500.0°F

-450.0 to 2300.0°F

-200.0 to 1000.0°F

-300.0 to 2300.0°F

-450.0 to 750.0°F

-200.0 to 750.0°F
32 to 3300°F

32 to 3100°F
32 to 3100°F

-300.0 to 2400.0°F

-450.0 to 1800.0°F

-300.0 to 1600.0°F

-300.0 to 750.0°F

-200.0 to 1000.0°F

32 to 4200°F

32.0 to 2500.0°F
32 to 3400°F

32 to 3600°F

-300.0 to 1000.0°F

-200.0 to 300.0°F

-300.0 to 1560.0°F

-300.0 to 1000.0°F

-200.0 to 300.0°F

Display range

-19999 to 30000
Display span 30000 or
less (Decimal point
position changeable)

±0.1% ±1 digit of instrument range at 0°C or more
±0.2% ±1 digit of instrument range at less than 0°C

• However, ±2% ±1 digit of instrument range for type K
at temperatures less than -200°C.
However, ±1% ± 1 digit of instrument range for type T

•
at temperatures less than -200°C.

±0.15% ±1 digit of instrument range at 400°C or more
±5% ±1 digit of instrument range at less than 400°C

±0.15% ± 1 digit of instrument range

±0.1% ± 1 digit of instrument range
±0.25% ±1 digit of instrument range for
temperature at less than 0°C

±0.1% ±1 digit of instrument range at 0°C or more
±0.2% ±1 digit of instrument range at less than 0°C

• However, ±1.5% ±1 digit of instrument range for
type E at temperature less than -200°C.

±0.2% ±1 digit of instrument range
±0.1% ± 1 digit of instrument range

±0.5% ±1 digit of instrument range at 800°C or more

Accuracy not guaranteed for temperature less than
800°C

±0.2% ± 1 digit of instrument range
±0.1% ± 1 digit of instrument range (Note1) (Note2)
±0.2% ± 1 digit of instrument range (Note1)
±0.1% ± 1 digit of instrument range (Note1) (Note2)

±0.2% ± 1 digit of instrument range (Note1)
±0.1% ± 1 digit of instrument range

-10.00 to 20.00 mV

0.0 to 100.0 mV

Note1:The accuracy is ±0.3°C of instrument range ±1 digit for a temperature range from 0 to 100°C.
Note2:The accuracy is ±0.5°C of instrument range ±1 digit for a temperature range from –100 to 200°C.
*1: Performance in the standard operating conditions (at 23±2°C, 55±10% RH, and 50/60Hz power frequency)

Instrument accuracy

*1

Remote Input Signal

(UT450-■■1, -■■2, or -■■4 only)
Functions: Remote input (analog input) for setting SP
Input type: Settable within the range of voltage input

1 to 5 V DC, 0 to 2 V DC, 0 to 10 V DC or

0.4 to 2.0 V DC.
Number of inputs: 1 point
Sampling period: 200 ms
Input resistance: Approx. 1 MΩ
Input accuracy: ±0.3% ± 1 digit of F.S. for 0 to 2 V DC

input

24V DC Loop Power Supply for Sensor

Supplies power to the 2-wire transmitter. The current signal
is converted to a voltage signal by placing a resistor
(arbitrary from 10 to 250 Ω) and is read by the measured
input block.

Supply voltage 21.6 to 28.0 V DC, maximum supply current
about 30 mA (only for models with 24 V DC loop power
supply)

■24 V DC Power Supply Wiring to Two-wire Sensor

±0.2% ± 1 digit of F.S. for 0 to 10 V DC input
±0.375% ± 1 digit of F.S. for 0.4 to 2.0 V DC
range
±0.3% ± 1 digit of F.S. for 1 to 5 V DC range
Performance in the standard operating
conditions (at 23±2°C, 55±10% RH, and 50/
60Hz power frequency)

Feedback Resistance Input Signal

Provided for UT450-1■■ only. Valid for position propor-
tional PID control.

Two-wire transmitter

4-20mADC

External
resistor
(Note)

250Ω

12

PV input

1 to 5 V DC signal

13

Sensor power

43

44

supply

21.6 to

28.0 V DC

Slidewire resistance:

Total resistance 100 Ω to 2.5 kΩ (with
detection of slidewire breakage)

Note : Connecting a 250Ω resistor to the terminals is optional.
Model : X010-250-2 (resistor with M3.5 crimp-on terminal lugs)

Measuring resolution ±0.1% of total resistance

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

6

Retransmission Output

Any of the PV, target setpoint or control output is output. Or
this can be used for 15 V DC sensor power supply.

Number of output points: 1
Output signal: 4 to 20 mA DC
Load resistance: 600 Ω or less
Output accuracy: ±0.1% of span

Performance in the standard operating
conditions (at 23±2°C, 55±10% RH, and 50/
60Hz power frequency)

When using for 15 V DC sensor power supply:

Supply voltage 14.5 to 18.0 V DC, maximum supply
current about 21 mA (with the protection circuit at field
shortcircuit)

Control Outputs

Select 1 or 2 points (UT450-2■■) from the following output
types depending on the product model. Relay contact output
for position proportional PID control (UT450-1■■).

Current output

Number of output points: 1 or 2 (for heating/cooling

type) (switchable to voltage pulse output)

Output signal: 4 to 20 mA DC
Load resistance: 600 Ω or less
Output accuracy:

±0.1% of span
Performance in the standard operating
conditions (at 23±2°C, 55±10% RH, and 50/
60Hz power frequency)

Voltage pulse output

Number of output points: 1 or 2 (for heating/cooling

model) (switchable to current output)

Output signal:

ON voltage 12 V DC or more (load
resistance 600 Ω or more; current on short­circuiting about 30 mA)
OFF voltage 0.1 V DC or less

Resolution: 10 ms or 0.1% of output value, whichever is

greater.

Relay contact output

Number of output points: 1 or 2 (for heating/cooling

model)

Output signal: At three terminals of NC, NO, and

Common

Contact rating: 250 V AC, 3 A or 30 V DC, 3 A

(resistive load)

Resolution: 10 ms or 0.1% of output value, whichever is

greater.

Contact Inputs

Usage: Target setpoint switching, REMOTE/LOCAL

switching, or RUN/STOP switching

Number of input points:

Varies with optional codes (as shown below):

Model and Suffix Code Number of Input Points

UT450- ■ 02

■

UT450­UT450­UT450­UT450-

17

■

23

■

36

■

43

Input type: Non-voltage contact input or transistor open

collector input

Input contact rating: 12 V DC, 10 mA or more (for non-

voltage contact input)

On/off detection:

For non-voltage contact input,

On contact resistance 1 k Ω or less;
Off contact resistance 20 k Ω or more

For transistor contact input,

On 2 V or less;

Off leak current 100 µA or less

Minimum retention time for status detection: 0.6 s

Contact Outputs

Usage: Alarm output, FAIL output
Number of output points:

Varies with optional codes (as shown below):

Model and Suffix Code Number of Output Points

UT450- ■ 03

■

UT450­UT450­UT450­UT450-

14

■

23

■

34

■

43

Relay contact rating: 240 V AC, 1 A or 30 V DC, 1 A
Transistor contact rating: 24 V DC, 50 mA

● Display Specifications

Measured value (PV) display:

Data display:3 digits + 5 digits, seven-segment red color

Status indicating lamps: LEDs

5-digit seven-segment red color LED display;
height of letters 20 mm

LED display; height of letters 9.3 mm

● Conformance to Safety and EMC Standards

Safety standard:

EMC standard:

Conforms to IEC1010-1: 1990 and EN61010­1: 1992
Certified for CSA1010
The overvoltage category of each input is
CAT II (IEC1010-1)
Certified for UL508 application

To the following EMC standards. During test,
the controller continues to operate with the
measurement accuracy within ±20% of the
range:
For EMI (emission), EN55011, Class A Group 1
For EMS (immunity), EN50082-2: 1995

● Construction, Installation, and Wiring

Construction: Dust-proof and Drip-proof front panel

Material of the body: ABS resin and polycarbonate
Case color: Black
Weight: Approx. 1 kg or less
External dimensions: 96W × 96H × 100D (from the panel

Mounting: Direct panel mounting; mounting bracket, one

Panel cutout dimensions:
Mounting attitude:

conforming to IP55.
For side-by-side close installation, controller
loses its dust-proof and drip-proof protections.

face) (mm)
each for upper and lower mounting

92

+0.8

0

W ×

92

+0.8

H (mm)

0

Up to 30 degrees from horizontal; Must not
face downward.

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

7

Wiring connection:

With M3.5 screw terminals (for signal, power
and grounding wiring)

● Power Supply and Isolation

Power supply: Rated voltage 100 to 240 V AC (±10%),

50/60 Hz
Power consumption: MAX. 20 VA (MAX. 8.0 W)
Memory backup: EEPROM. Service life approx. 100000

times of writings
Withstanding voltage:

1500 V AC for 1 min.

between primary terminals and secondary
terminals (Note)

1500 V AC for 1 min.

between primary terminals and ground
terminal (Note)

1500 V AC for 1 min.

between ground terminal and secondary
terminals

500 V AC for 1 min.

between secondary terminals

where primary terminals stand for power
and relay output terminals and secondary
terminals, analog input and output signal
terminals, voltage pulse output terminals,
and contact input terminals.

Note. The withstanding voltage is specified as 2300 V AC

per minute to provide a margin of safety.

Isolation resistance:

20 MΩ or more for 500 V DC applied

between power terminals and ground terminal
Grounding: Class 3 grounding (grounding resistance of

100 Ω or less)

Isolation Specifications

Measured input terminal :

Isolated from other input/output terminals, but

not isolated from internal circuits.
Remote input terminal:

Isolated from other input/output terminals and

internal circuits.
24 V DC loop power supply terminal:

Isolated from other input/output terminals and

internal circuits.
Terminals for control output (current or voltage pulse) and

retransmission output:

Not isolated between control output and

retransmission output terminal, but isolated

from other input/output terminals and internal

circuits.
Relay contact control output terminals:

Isolated from other contact output terminals,

other input/output terminals and internal

circuits.
Contact input terminals:

Not isolated from other contact input

terminals mutually and communication

terminals, but isolated from other input/output

terminals and internal circuits.
Relay contact alarm output terminals:

Isolated from other input/output terminals and

internal circuits.
Transistor contact alarm output terminals:

Not isolated from other contact alarm outputs

terminal mutually, but isolated from other

input/output terminals and internal circuits.

RS-485 communication terminals:

Not isolated from contact input terminals, but
isolated from other input/output terminals and
internal circuits.

Feedback slidewire resistance input terminals:

Not isolated from control output terminals
(current or voltage pulse) and retransmission
output, but isolated from other input/output
terminals and internal circuits.

Power terminals:

Isolated from other input/output terminals and
internal circuits.

Ground terminal:

Isolated from other input/output terminals and
internal circuits.

● Environmental Conditions

Normal operating conditions:

Ambient temperature: 0 to 50°C (40°C or less in close

Temperature change rate limit:10°C /h or less
Ambient humidity: 20 to 90% RH (no condensation)
Magnetic field: 400 A/m or less
Continuous vibration (5 to 14 Hz):

Continuous vibration (14 to 150 Hz):

Short period vibration: 14.7 m/s
Shock: 147 m/s
Installation altitude: 2000 m or less above sea level
Warm-up time: 30minutes or more

Transportation and storage conditions:

Temperature: -25 to 70°C
Temperature change rate limit:20°C /h or less
Humidity: 5 to 95% RH (no condensation)

Effects of operating conditions

Effect of ambient temperature:

Effect of power supply fluctuation (within rated voltage

mounting side-by-side)

Peak-to-peak amplitude 1.2 mm or less

2

or less

4.9 m/s

2

or less, 11 ms

2

, 15 s or less

Whichever is greater, ±1 µV/°C or ±0.01%
of F.S./°C for voltage or thermocouple
inputs.
±0.02% of F.S./°C for remote input
±0.05°C/°C (ambient temperature) or less
for RTD inputs.
±0.05% of F.S./°C or less for analog
outputs.

range):
Whichever is greater, ±1 µV/10 V or
±0.01% of F.S./10 V for remote inputs.
±0.05% of F.S./10 V or less for analog
outputs.

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

■Function Block Diagram for Standard Type

8

PV input

terminals , and

12 1311

Input selection

Unit selection

Input range conversion

Input bias
Input filter

Remote input

terminals and

RSP

INPUT

2221 2723

Input selection

Input range conversion

Remote setting filter

Aux.Input

RMS=RSP

Communication

RMS=COM

Ratio/bias calculation

R/L

Target setpoint

ramp-rate function

Communication

terminals to

RS485

Contact input (when parameter DIS=1)

DI3 DI4 DI5 DI6 DI1 DI2 R/LPV INPUT

Target setpoint selection

SPN

Target setpoints 1 to 8

LOCALREMOTE

REMOTE (ON)/LOCAL (OFF) switching

Preset output

24V sensor

power supply

LPS

Terminals

43

44

and

Control computationManual operation

A/M

Output limiter

S/R

OT

Control

output

OUTPUT1 OUTPUT1

Current or pulse

terminals and

1716

Terminal Parameter Function

Legend

Analog signal Contact signal Front panel key

AUTOMAN

AUTO (ON)/MAN (OFF) switching

RUNSTOP
STOP (ON)/RUN (OFF) switching

15 V sensor

power supply

RET/LPS

Relay

terminals

2 31

, and

Current
terminals
and

Retransmission

output

RET

1514

Alarm function

AL4AL3AL2AL1

Alarm 1 Alarm 2 Alarm 3 Alarm 4

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

■Function Block Diagram for Heating/Cooling Type

9

PV input

terminals , and

12 1311 2221 23 27

Input selection

Unit selection

Input range conversion

Input bias
Input filter

Remote input

terminals and

RSP

INPUT

Input selection

Input range conversion

Remote setting filter
Aux.Input

Communication

RMS=COMRMS=RSP

Ratio/bias calculation

R/L

Target setpoint

ramp-rate function

Communication

terminals to

RS485

LOCALREMOTE

REMOTE (ON)/LOCAL (OFF) switching

Contact input (when parameter DIS=1)

DI3 DI4 DI5 DI6 DI1 DI2 R/LPV INPUT

Target setpoint selection

SPN

Target setpoints 1 to 8

Heating-side
preset output

OUTPUT1 OUTPUT1

Current or pulse

terminals and

Heating-side
output limiter

OT

Heating-side

output

1716

Legend

Control computationManual operation

A/M

Heating/cooling

computation

Relay

terminals

2 31

, and

AUTOMAN

AUTO (ON)/MAN (OFF) switching

Cooling-side
output limiter

Cooling-side
preset output

OT

Cooling-side

output

OUTPUT2 OUTPUT2

15 V sensor

power supply

S/R

Retransmission

OUTPUT3

STOP (ON)/RUN (OFF) switching

output

RET

Alarm 1 Alarm 2 Alarm 3 Alarm 4

Current or pulse

terminals

4746

and

Relay

terminals

49 5048

, and

Current

terminals

and

1514

Terminal Parameter Function
Analog signal Contact signal Front panel key

Alarm function

DO4DO3DO2DO1

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

■Function Block Diagram for Position Proportional Type

10

PV input

terminals , and

12 1311

PV INPUT

Input selection

Unit selection

Input range conversion

Input bias
Input filter

In MAN operation, relay
is ON when or key
is hold down.

Remote input

terminals and

RSP

INPUT

2221 23 27

Input selection

Input range conversion

Remote setting filter
Aux.Input

Communication

RMS=COMRMS=RSP

Ratio/bias calculation

R/L

Target setpoint

ramp-rate function

Control computationManual operation

Output limiter

AUTOMAN

A/M

AUTO (ON)/MAN (OFF) switching

Communication

terminals to

RS485 DI3 DI4 DI5 DI6 DI1 DI2 R/L

Contact input (when parameter DIS=1)

Target setpoint selection

SPN

Target setpoints 1 to 8

LOCALREMOTE

REMOTE (ON)/LOCAL (OFF) switching

Preset output

RUNSTOP

FEEDBACK

terminals

46 4745

, and

Feed-back
input

Signal comparison

L relay

( key)

, and

S/R

OUTPUT
terminals

49 5048

M

STOP (ON)/RUN (OFF) switching

24 V sensor

H relay

power supply

( key)

LPS

Relay output

Terminals

43

and

Direct/reverse signal

Motor-driven valve

Valve position

sliding resistor

Legend

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

15 V sensor

power supply

Retransmission

RET/LPS

output

RET

Alarm function

Alarm 1 Alarm 2 Alarm 3 Alarm 4

Current

44

terminals and

1514

Terminal Parameter Function
Analog signal Contact signal Front panel key

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

AL4AL3AL2AL1

<<Contents>> <<Index>>

123456789

10

414243444546474849

50

3132333435

36

21

2223242526

27

11121314151617

16

17

Continuous/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

Control output

8

9

Power supply

10

L

N

Allowable range: 100 to 240 V AC (610%)

(free voltage)

50/60 Hz shared

Power supply

12

13

TC input

11

12

RTD input

13

12

13

mV/V input

21

22

Remote input

*

Wiring can only be carried out for

controllers with remote input.

Specify in a range of

1-5 V DC, 0-2 V DC,

or 0-10 V DC.

23

24

RS-485 communication

* Wiring can only be carried out

for controllers with communication

functions.

Maximum baud rate: 9600 bps

25

26

27

SDB(+)

SDA(-)

RDB(+)

RDA(-)

SG

19

18

Correspondence between DIS parameters and external contact input functions

40

39

38

37

20

28

30

When DIS=4

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

STOP when DI3=ON

RUN when DI3=OFF

AUTO when DI4=ON

MAN when DI4=OFF

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=3

STOP when DI1=ON

RUN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

AUTO when DI3=ON

MAN when DI3=OFF

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=2

AUTO when DI1=ON

MAN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

STOP when DI3=ON

RUN when DI3=OFF

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=1 (Factory-shipped setting)

AUTO when DI1=ON

MAN when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

DI3

DI4

1.SP2.SP 3.SP4.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

5.SP6.SP 7.SP 8.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

DI5

DI6

OFF

OFF

OFF

OFF

OFF

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF

ON

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=0

No function

No function

No function

No function

No function

No function

No function

Remote when R/L=ON

Local when R/L=OFF

Common

When switching target

SP 1 to 4:

DI1

DI2

1.SP

2.SP3.SP 4.SP
OFF

OFFOFF

ON ON

ON

OFF

ON

When switching target SP 1 to 8:

* If all of the contact inputs are set to OFF,

the controller uses the immediately

preceding target setpoint.

19

18

40

393837

20

28

30

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

+5V

+5V

+5V

+5V

+5V

+5V

+5V

Contact

Transistor contact

*

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

Contact rating: 12 V DC, 10 mA or more

6

5

Alarm output

4

7

34

35

AL1

AL2

AL3

COM

AL4

COM

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

Transistor contact rating: 24 V DC, 50 mA

14

15

Retransmission output

4-20 mA DC

14

15

15 V DC sensor power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory

before shipment.

Load resistance: 600

Ω or less

* If 15 V DC sensor power supply is used,

retransmission output cannot be used.

24 V DC sensor

power supply

* Wiring can only be carried out for controllers with

24 V DC sensor power supply.

1

2

Relay contact output

3

Control output

NC

NO

COM

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Note: Select this option from

the OT parameter.

*Time proportional PID relay contact

output is configured at factory

before shipment.

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

Installation category (overvoltage category): II (IEC1010-1)

Relay

Transistor

A

b

B

Common

Alarm-1 output

Alarm-2 output

Alarm-3 output

Common

Alarm-4 output

NOTE

-

+

+

-

-

+

-

+

-

+

-

+

21.6-28.0VDC
(30 mA DC max.)

43

44

+

-

OT=0 (factory-set default)

Time proportional control

Relay output (terminals , and )

OT=1

Correspondence between parameter OT and control output types

Time proportional control

Voltage pulse output (terminals and )

OT=2

Current output

(terminals and )

OT=3

On-off control

Relay output (terminals , and )

* OT is a setup parameter.

You can change the settings of the parameter OT to change the

control output type.

Default: 1-5 V DC

UT

UT

1 2 3

16 17

16 17

1 2

3

12

13

Note: Connecting a 250 Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

*

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint 41 ).

j

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

PV input

* Not configured at factory before shipment

-

+

* Alarm-4 output is

optional specification

373839

40

282930

18

19

20

Note:Select this option

from the OT

parameter.

Note: External Contact Input

If the power is turned on when the external contact input is OFF,

the mode (SPN, R/L, or A/M) existing before the power is turned

off will be continued. (except for RUN/STOP)

11

■UT450 Standard Type (Model UT450-0m or UT450-3m), Terminal Arrangements

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

1234567

8

9

10

414243444546474849

50

3132333435

36

21

2223242526

27

11121314151617

Heating-side control output

Heating-side control output

Continuous/voltage pulse output

Cooling-side control

output

Cooling-side control

output

12

13

111213

12

13

A

b

B

14

15

14

15

23

24

25

26

27

SDB(+)

SDA(-)

RDB(+)

RDA(-)

SG

19

1840393837

20

28

30

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

DI1

DI2

1.SP

2.SP3.SP4.SP
OFF

OFFOFF

ON ON

ON

OFF

ON

191840

39

38

37

20

28

30

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

+5V

+5V

+5V

+5V

+5V

+5V

+5V

6

5

4

7

34

35

AL1

AL2

AL3

COM

AL4

COM

8

9

10

L

N

1

2

3

NC

NO

COM

484950

NC

NO

COM

16

17

Continuous/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

+

-

+

-

+

-

+

-

+

-

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

Power supply

Power supply

Relay contact output

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Note: Select this option from the OT parameter.

*Time proportional PID relay contact

output is configured at factory

before shipment.

Relay

Transistor

Alarm output

Common

Alarm-1 output

Alarm-2 output

Alarm-3 output

Common

Alarm-4 output

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (

resistance

load)

Transistor contact rating: 24 V DC, 50 mA

*Time proportional PID

relay contact output is

configured at factory

before shipment.

* Wiring can only be carried out

for controllers with communication

functions.

Maximum baud rate: 9600 bps

*

Wiring can only be carried out for

controllers with remote input.

TC input

RTD input

mV/V input

Installation category (overvoltage category): II (IEC1010-1)

21

22

Remote input

Specify in a range of

1-5 V DC, 0-2 V DC,

or 0-10 V DC.

-

+

46

47

4-20 mA DC,

voltage pulse

(12 V)

-

+

Retransmission output

4-20 mA DC

15 V DC sensor power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory

before shipment.

* If 15 V DC sensor power supply is used,

retransmission output cannot be used.

RS-485 communication

Relay contact output

NOTE

When DIS=1 (Factory-shipped setting)

AUTO when DI1=ON

MAN when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=0

No function

Remote when R/L=ON

Local when R/L=OFF

Common

No function

No function

No function

No function

No function

No function

AUTO when DI4=ON

MAN when DI4=OFF

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

Correspondence between parameter DIS and external contact input functions

When DIS=4

STOP

when DI3=ON

RUN when DI3=OFF

When DIS=3

STOP

when DI1=ON

RUN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

AUTO when DI3=ON

MAN when DI3=OFF

When DIS=2

AUTO when DI1=ON

MAN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

STOP

when DI3=ON

RUN when DI3=OFF

When switching target

SP 1 to 4:

Contact

Transistor contact

Contact rating: 12 V DC, 10 mA or more

*

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

Default: 1-5 V DC

UT

UT

12

13

* When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint 41 ).

j

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

-

+

OT=4 (factory-set default) OT=5

Correspondence between parameter OT and heating-side/cooling-side output types

OT=6

OT=7 OT=8 OT=9 OT=10 OT=11 OT=12

* OT is a setup parameter.

You can change the settings of the parameter OT to change the

control output type.

The control output types, relay output and voltage pulse output shown in the table above refer to those of time proportional control.

To change the type to a relay output for on-off control, select Relay Terminals and change the setpoint of the proportional band to 0.

Heating side: Relay output

(terminals , and )

Cooling side: Relay output

(terminals , and )

1 2 3

Heating side: Voltage pulse output

(terminals and )

Cooling side: Relay output

(terminals , and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Relay output

(terminals , and )

16 17

Heating side: Relay output

(terminals , and )

Cooling side: Voltage pulse output

(terminals and )

1

2 3

46 47

Heating side: Relay output

(terminals , and )

Cooling side: Current output

(terminals and )

1 2 3

46 47

Heating side: Voltage pulse output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

46 47

16 17

Heating side: Current output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

46 47

16 17

Heating side: Voltage pulse output

(terminals and )

Cooling side: Current output

(terminals and )

46

47

16 17

Heating side: Current output

(terminals and )

Cooling side: Current output

(terminals and )

46

47

16 17

373839

40

282930

181920

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Note: Connecting a 250 Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

Load resistance: 600

Ω or less

48 49

50

48 49 50

48 49 50

* Alarm-4 output is

optional specification

PV input

* Not configured at factory before shipment

Allowable range: 100 to 240 V AC (610%)

(free voltage)

50/60 Hz shared

Note:Select this option

from the OT

parameter.

Note: Select this option from the OT parameter.

DI3

DI4

1.SP2.SP 3.SP4.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

5.SP6.SP7.SP8.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

DI5

DI6

OFF

OFF

OFF

OFF

OFF

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF

ON

When switching target SP 1 to 8:

* If all of the contact inputs are set to OFF,

the controller uses the immediately

preceding target setpoint.

Note: External Contact Input

If the power is turned

on when the external

contact input is OFF,

the mode (SPN, R/L,

or A/M) existing before

the power is turned off

will be continued.

(except for RUN/STOP)

■UT450 Heating/Cooling Type (Model UT450-2m)

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00

12

<<Contents>> <<Index>>

123456789

10

414243444546474849

50

313233343536373839

40

21

22232425262728

29

30

111213141516171819

20

Feedback input

Resistance: 100 V to 2.5 kV

Position proportional control output

48

49

Relay contact output

50

H

(Direct)

L

(Reverse)

COM

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

8

9

10

L

N

6

5

4

7

34

35

AL1

AL2

AL3

COM

AL4

COM

23

24

* Wiring can only be carried out

for controllers with communication

functions.

Maximum baud rate: 9600 bps

252627

SDB(+)

SDA(-)

RDB(+)

RDA(-)

SG

12

13

111213

12

13

14

15

14

15

A

b

B

1918403938

37

20

28

30

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

DI1

DI2

1.SP

2.SP3.SP4.SP

OFF

OFFOFF

ON ON

ON

OFF

ON

19

18

403938

37

20

28

30

DI1

DI2

DI3

DI4

DI5

DI6

COM

COM

R/L

+5V

+5V

+5V

+5V

+5V

+5V

+5V

24 V DC sensor

power supply

* Wiring can only be carried out for controllers with 24 V

DC sensor power supply.

Power supply

Power supply

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

Alarm output

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

Transistor contact rating: 24 V DC, 50 mA

Common

Alarm-1 output

Alarm-2 output

Alarm-3 output

Common

Alarm-4 output

*

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

Correspondence between parameter DIS and external contact input functions

When DIS=4

STOP

when DI3=ON

RUN when DI3=OFF

AUTO when DI4=ON

MAN when DI4=OFF

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=3

STOP

when DI1=ON

RUN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

AUTO when DI3=ON

MAN when DI3=OFF

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=2

AUTO when DI1=ON

MAN when DI1=OFF

2.SP when DI2=ON

1.SP when DI2=OFF

STOP

when DI3=ON

RUN when DI3=OFF

No function

No function

No function

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=1 (Factory-shipped setting)

AUTO when DI1=ON

MAN when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

Remote when R/L=ON

Local when R/L=OFF

Common

When DIS=0

No function

No function

No function

No function

No function

No function

No function

Remote when R/L=ON

Local when R/L=OFF

Common

When switching target

SP 1 to 4:

Contact

Transistor contact

Contact rating: 12 V DC, 10 mA or more

+

-

+

-

+

-

+

-

Retransmission output

4-20 mA DC

15 V DC sensor power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory

before shipment.

* If 15 V DC sensor power supply is used,

retransmission output cannot be used.

Installation category (overvoltage category): II (IEC1010-1)

NOTE

21

22

Remote input

* Wiring can only be carried out for

controllers with remote input.

Specify in a range of

1-5 V DC, 0-2 V DC,

or 0-10 V DC.

-

+

RS-485 communication

TC input

RTD input

mV/V input

21.6-28.0VDC
(30 mA DC max.)

43

44

+

-

Default: 1-5 V DC

UT

UT

12

13

*

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint 41 ).

j

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

-

+

Load resistance: 600

Ω or less

Note: Connecting a 250 Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

Allowable range: 100 to 240 V AC (610%)

(free voltage)

50/60 Hz shared

* Alarm-4

output is

optional

specification

PV input

* Not configured at factory before shipment

0%

100%

47

46

45

Relay

Transistor

DI3

DI4

1.SP2.SP 3.SP4.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

5.SP6.SP7.SP8.SP

ON

ONOFF

OFF

ON

ON OFF

OFF

DI5

DI6

OFF

OFF

OFF

OFF

OFF

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF

ON

When switching target SP 1 to 8:

* If all of the contact inputs are set to OFF,

the controller uses the immediately

preceding target setpoint.

Note: External Contact Input

If the power is turned on when the external contact input is OFF, the mode (SPN, R/L, or A/M) existing before the power is turned off will be continued.

(except for RUN/STOP)

j

Receiving 4-20 mA DC Current

Signals with the Controller

13

■UT450 Position Proportional Type (Model UT450-1m or UT450-4m)

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation GS 05D01C12-01E 1st Edition Mar.31, 2000-00

<<Contents>> <<Index>>

■External Dimensions and Panel Cutout Dimensions

+0.8

100

0

92

11

96

A/M

SET/ENT

PV

96

REM
MAN

AL1 2 3 4

1 to 10 mm (Panel thickness)

General installation Side-by-side close installation

Large bracket

112

91.8

Small bracket

[(N-1)396+92]117 min.

+0.8

0

14

Unit: mm

(53)

145 min.

"N" stands for the number of controllers to be
installed.

92

+0.8

0

92

+0.8

0

(25)

However, the measured value applies if N $ 5.

■Model and Suffix Codes

Model Suffix Code Description

UT450

Type

Optional functions

-0 Standard type

-1 Position proportional type

-2 Heating/cooling type

-3 Standard type (with 24 V DC sensor power supply)

-4 Position proportional type (with 24 V DC sensor power supply)

Digital indicating controller (provided with retransmission output and 15 V
DC sensor power supply as standard)

0 None
1

With communication, remote input, 5 additional DIs, and 1 additional Alarm
2 With communication, remote input, and 1 additional DI
3 With 4 additional DIs and 1 additional Alarm
4 With remote input and 1 additional DI

Standard accessories: Brackets (mounting hardware), unit label, User’s Manuals, and User’s Manual Reference (CD-ROM

version).

■Items to be Specified When Ordering

Model and suffix codes, necessary/unnecessary of User’s Manual or QIC.

All Rights Reserved. Copyright © 2000, Y okogawa M&C Corporation

GS 05D01C12-01E 1st Edition Mar.31, 2000-00