Yokogawa UT150 Operating Manual

User’s
Manual

Models
UT150, UT152, UT155
Temperature Controller

Please read through this user's manual to ensure correct usage of the controller and keep it handy for
quick reference.

Contents

1. Notice

2. What is on the Front Panel?

3. Installing the Controller

4. Panel Cutout Dimensions and External Dimensions

5. Wiring

6. Hardware Specifications

7. Key Operations

8. Troubleshooting

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1
1
1
1
2
2
3

Revision Record

IM 05C01E12-01E 1st Edition: Oct. ’00
2nd Edition: Feb. ’01
3rd Edition: Jun. ’04

3

IM 05C01E12-01E

Jun. 2004 3rd Edition

■ Checking Package Contents

Before using the product, check that its model & suffix codes are as you ordered.

Model and Suffix Codes

Model

UT150
UT152
UT155

Control output for standard­type (or for heating)

Control output for cooling

Option

Note:When specifying the /RS option, be sure to order the required number of copies of
Communication Functions User’s Manual separeately.

Check the package contents against the list below.

• Temperature controller

• Mounting bracket

• User’s manual (this manual)

Suffix code Description

Temperature controller

–R
–V
–A

N
R
V
A

..........................

................................

...................

Relay output (time-proportional PID or on/off control)
Voltage pulse output (time-proportional PID)
4 to 20mA output (continuous PID)

No cooling output (standard type)
Relay output (time-proportional PID or on/off control)
Voltage pulse output (time-proportional PID)
4 to 20mA output (continuous PID)

/AL

Alarm outputs (2 points)

/HBA

Heater disconnection alarm (includes optional /AL function)

/EX

SP1/SP2 switching, starting of timer, and RUN/STOP
switching by external contacts

/RET

PV retransmission output in 4 to 20mA

/RS

Communication function

/V24

Power Supply 24V DC / 24V AC

1
1 for UT150
2 for UT152, UT155
1

1. Notice

The following safety symbol is used both on the product and in this user’s manual.

This symbol stands for “Handle with Care.” When displayed on the product, the operator should
refer to the corresponding explanation given in the user’s manual in order to avoid injury or death
of personnel and/or damage to the product. In the manual the symbol is accompanied by an expla­nation of the special care that is required to avoid shock or other dangers that may result in injury
or loss of life.

The following symbols are used in this manual only.

NOTE

IMPORTANT

Indicates that operating the hardware or software in a particular manner may lead to
damage or result in system failure.

Draws attention to information that is essential for understanding the operation and/or
features of the product.

■ Exemption from Responsibility

Make sure that all of the precautions are strictly adhered to. Yokogawa Electric Corporation assumes no liability
for any damage resulting from use of the instrument in contradiction to the precautions.
Also, Yokogawa Electric Corporation assumes no liability to any party for any loss or damage, direct or indirect,
caused by the use or any unpredictable defect of the instrument.

2. What is on the Front Panel ?

UT152 UT155UT150

a.

f.

b.

c.

f.

d.

h.

g.

e.
d.
c.

a.
b.

g.

f.

h.

Name Function

a. PV display (red)
b. SP display (green)
c. Alarm 1 (AL1) lamp (red)
d. Alarm 2 (AL2) lamp (red)
e. SP2 lamp (green)
f. Output (OUT) display lamps

UT150: (Left: orange; right: green)
UT152, UT155:
(Upper: orange; lower: green)

g. Data change keys

(Indicated as simply the and
keys hereafter.)

SET/ENT key (data registering key)

h.

(Indicated as simply the key
hereafter.)

e.
c.

d.

h.

Indicates PV (measured value) and character information such as parameter codes and error codes.
Indicates SP (target setpoint) and parameter values.
Lit when alarm 1 is activated.
Lit when alarm 2 is activated.
Lit when SP2 is being used for control operation.
Lit while control output is being output.

• The left (upper) lamp is lit in orange during control output of standard type.
In heating/cooling control, the left (upper) lamp lights up in orange when the heating-side output

•
is active; while the right (lower) lamp lights up in green when the cooling-side output is active.

• Changes SP and the parameter values.

• Pressing the key decreases the data value and pressing the key increases

it. Holding down the key will gradually increase the speed of the change.

• Registers the data value changed using the data change keys.

• Switches between operating display or parameter setting displays sequentially.

• Pressing the key for 3 seconds or longer in the operating display retrieves the

operating parameter setting display.

• Pressing the key for 3 seconds or longer in either an operating or setup parameter
setting display transfers back to operating display 1. (See page 3.)

3. Installing the Controller

CAUTION

To prevent electric shock, the source of power to the controller must be turned off when mounting the controller
on to a panel.

4. Panel Cutout Dimensions and External Dimensions

1. General Mounting

min. 70

UT150

25

min. 70

25

2. Side-by-side Close Mounting

[(N–1)×48+45]

0

+0.6

45

N is the number of controllers.
If N>5, then measure the actual length.

0

+0.6

45

+0.6

45

0

+0.6

0

1. General Mounting

min. 70

a.

min. 145

e.

b.

25

2. Side-by-side Close Mounting

×48+

[(N–1)

53

0

+0.8

92

+0.6

45

0

+0.6

45]

0

g.

0

+0.8

92

N is the number of controllers.
If N>5, then measure the actual length.

1. General Mounting

min. 117

+ 0.8
0

+ 0.8

53

0

92

min. 145

25

92

2. Side-by-side Close Mounting

×96+

92]

+0.8

0

[(N–1)

0

+0.8

92

N is the number of controllers.
If N>5, then measure the actual length.

Unit: mm

UT152

Unit: mm

48

UT155

Unit: mm

96

48

48

Panel thickness

1 to 10

11

96

Panel thickness

1 to 10

96

Panel thickness

1 to 10

max. 47.8

max. 44.8

10012

max. 61

max. 44.8

max. 44.6max. 91.8

1-1021-301-20

100

max. 112

max. 91.8

1-1051-6041-5031-4021-3011-20

11

100

max. 112

max. 91.8

NOTE

To install the controller, select a location where:

1. No-one may accidentally touch the terminals; 6. There are no resulting magnetic disturbances;

2. Mechanical vibrations are minimal; 7. The terminal board (reference junction compen-

3. Corrosive gas is minimal; sation element, etc.) is protected from wind;

4. The temperature can be maintained at about 23°C with 8. There is no splashing of water; and

minimal fluctuation; 9. There are no flammable materials.

5. There is no direct heat radiation;

Never place the controller directly on flammable items.

If the controller has to be installed close to flammable items or equipment, be
sure to enclose the controller in shielding panels positioned at least 150mm
away from each side. These panels should be made of either 1.43mm thick
metal-plated steel plates or 1.6mm thick uncoated steel plates.

● Mount the controller at an angle within 30° from horizontal with

the screen facing upward. Do not mount it facing downward.

30° (MAX)

150mm

150mm

NOTE

Splash-proof construction is not available when the side-by-side close mounting method shown in the above
figures, is chosen for any of the controllers.

■ Mounting the Controller

UT152, UT155UT150

1. Affix the bracket over the back
end of the controller.

Panel

150mm150mm

UT150

Bracket

[ How to remove the bracket ]
To move the bracket, push down the center of the upper and lower parts
of the controller softly. The bracket is released from the latch.

2.

Push the bracket to the panel,
and then secure the bracket
into position.

Direction for mounting

Insert the controller into the opening with the terminal board facing the front.
Set and tighten the top and bottom brackets on the controller to fix it on the
panel.

1

Panel

Small bracket
(bottom)

IM05C01E12-01E

Large bracket
(top)

Terminal board

Insert a screwdriver
into the brackets to
tighten the screws.

y

y

v

quip

quip

g

.

g

.

O

t

ce

C

e

3

5. Wiring

1) Before you start wiring, turn off the power source and use a tester to check that the controller and cables are
not receiving any power in order to prevent electric shock.

2) For safety, be sure to install a circuit breaker switch (of 5A and 100V AC or 220V AC, and that conforms to
IEC60947) near the instrument so as to be operated easily, and clearly indicate that the device is used to de­energize the instrument.

3) Wiring should be carried out by personnel with appropriate electrical knowledge and experience.

1) Use a single-phase power source. If the source has a lot of noise, use an isolation transformer for the primary

CAUTION

NOTE

● Cable Specifications and Recommended Products

Power supply and relay contact output
Thermocouple input
RTD input
Other signals

600V vinyl insulated wire/cable, JIS C3307, 0.9 to 2.0mm
Shielded compensating lead wire, JIS C1610
Shielded wire (3-wire), UL2482 (Hitachi cable)
Shielded wire

2

● Recommended Terminals

Use M3.5 screw-compatible crimp-on terminals with an insulating sleeve, as shown below.

ø 3.7mm ø 3.7mm

side and a line filter (we recommend TDK’s ZAC2205-00U product) for the secondary side. When this
noise-prevention measure is taken, keep the primary and secondary power cables well apart. Since the
controller has no fuse, be sure to install a circuit breaker switch (of 5A and 100V AC or 220V AC, and that
conforms to IEC standards) and clearly indicate that the device is used to de-energize the controller.

7mm or less

7mm or less

2) For thermocouple input, use shielded compensating lead wires. For RTD input, use shielded wires which
have low resistance and no resistance difference between the 3 wires. See the table given later for the
specifications of the cables and terminals and the recommended products.

3) The control output relay cannot be replaced even though it has a limited service life (100,000 relay contacts

Always fix a terminal cover bracket to the UT150 controller before wiring if an optional anti-electric-shock
terminal cover (part number: L4000FB) is used.

IMPORTANT

for the resistance load). Thus, an auxiliary relay should be used so that the load can be turned on and off.

4)

When using an inductive load (L) such as an auxiliary relay and solenoid valve, be sure to insert a CR filter (for AC)
or diode (for DC) in parallel as a spark-rejecting surge suppressor to prevent malfunctions or damage to the relay.

5)

When there is the possibility of being struck by external lightening surge, use the arrester to protect the instrument.

■ UT150 Terminal Arrangement (Standard type)

B
b
A

NOTE

+

AC/DC 24V

–

When ⬙/V24⬙

is specified.

+

–

B
b
A

+

–

Universal input-selectable
input type

DC mV or V Input

7

+

–

8

CAUTION

To prevent damage to
the controller, never provide
100-240V AC power supply
for power supply AC/DC 24V
model (when ⬙/V24⬙ is
specified).

4 to 20 mA DC Output

+

14

–

15

Universal input-selectable
input type

DC mV or V Input

12

+

–

13

4 to 20 mA DC Output

+

14

–

15

Alarm Outputs

16

ALM2

17

ALM1

18

COM

When “/AL” or “/HBA”
is specified.

Retransmission Output

+

1

–

2

When “/RET”
is specified.

RS-485

3

RSB(+)

4

RSA(–)

5

SG

When “/RS” is specified.

External Contact Inputs

TMR
STOP

3

SP2
STOP

4

COM

5

When “/EX” is specified.

■ UT152/UT155 Terminal Arrangement

(Standard Type)

External Contact Inputs

21
22
23

When “/EX” is specified.

Heater Current Detection Input

26
27
28

Heater Current Detection Input

When “/HBA”
is specified.

0 (Default)

Timer starts
when DI=ON

TMR

Timer stops

STOP

when DI=OFF
SP1/SP2

SP2

switching
SP2

STOP

when DI=ON

TMR
STOP

SP2
STOP

COM

24

25

RS-485

RSB(+)
RSA(–)
SG

CT

When “/RET”
is specified.

TMR
STOP

SP2
STOP

When “/HBA”
is specified.

When “/RS”
is specified.

Retransmission Output

1

2

(Note 1)

1
2
3
4

5

0 (Default)

Timer starts
when DI=ON

Timer stops
when DI=OFF

SP1/SP2
switching

SP2
when DI=ON

29

30

CT

Parameter DIS

+

–

Alarm Outputs

11
12
13
14
15

1

Timer starts
when DI=ON

Timer stops
when DI=OFF

RUN/STOP
switching

STOP
when DI=ON

Parameter DIS

1

Timer starts
when DI=ON

Timer stops
when DI=OFF

RUN/STOP
switching

STOP
when DI=ON

11

ALM2

12

ALM1

13

COM

When “/AL” or “/HBA”
is specified.

6
7
8
9

10

2

RUN/STOP
switching

STOP
when DI=ON

SP1/SP2
switching

SP2
when DI=ON

2

RUN/STOP
switching

STOP
when DI=ON

SP1/SP2
switching

SP2
when DI=ON

1121

22

12

23

13

24

14

25

15

26

16

27

17

28

18

29

19

30

20

Power Supply

L

19

20

N

100-240V AC

Measured Value (PV) Input

TC Input

7

8

9

10

+

–

L

N

100-240V AC

RTD Input

6
7
8

Power Supply

9

10

Control Output

Relay Contact Output

Specify one for the output signal type.

Note: The terminal arrangements of the UT152 and

Voltage Pulse Output

NO

14

15

COM

14

15

UT155 are the same.

Measured Value (PV) Input

TC Input

12

13

+

–

RTD Input

11
12
13

Control Output

Relay Contact Output

Specify one for the output signal type.

NOTE

19

+

AC/DC 24V

20

–

When ⬙/V24⬙

is specified.

Voltage Pulse Output

NO

14

15

COM

14

15

CAUTION

To prevent damage to
the controller, never provide
100-240V AC power supply
for power supply AC/DC 24V
model (when ⬙/V24⬙ is
specified).

(Heating/coolin Type)

(Heating/cooling Type)

Two types of optional anti-electric-shock terminal covers (part numbers T9115YE and T9115YD) are available
for the UT152 and UT155 controllers, respectively.

Cooling-side Control Output

Voltage Pulse Output

1

2

Specify one for the
output signal type.

Heater Current Detection Input

When “/HBA” is specified.

RS-485

3

RSB(+)

4

RSA(–)

5

SG

When “/RS” is specified.

When “/HBA” is specified.

Heater Current Detection Input

RS-485

26

RSB(+)

27

RSA(–)

28

SG

Cooling-side Control Output

Relay Contact Output

Specify one for the output signal type.

+

–

3

4

(Note 1)

24

25

29

30

CT

CT

NO

COM

4 to 20 mA DC Output

1

2

External Contact Inputs

3
4
5

When “/EX” is specified.

External Contact Inputs

When “/EX” is specified.

When “/RS”
is specified.

Voltage Pulse Output

29

30

+

–

TMR
STOP

SP2
STOP

COM

21
22
23

+

–

TMR
STOP

SP2
STOP

COM

Relay Contact Output

TMR
STOP

SP2
STOP

4 to 20 mA DC Output

29

30

TMR
STOP

SP2
STOP

NO

1

COM

2

0 (Default)

Timer starts
when DI=ON

Timer stops
when DI=OFF

SP1/SP2
switching

SP2
when DI=ON

Timer starts
when DI=ON

Timer stops
when DI=OFF

SP1/SP2
switching

SP2
when DI=ON

+

–

1
2
3
4

0 (Default)

5

Parameter DIS

Timer starts
when DI=ON

Timer stops
when DI=OFF

RUN/STOP
switching

STOP
when DI=ON

Parameter DIS

Timer starts
when DI=ON

Timer stops
when DI=OFF

RUN/STOP
switching

STOP
when DI=ON

6. Hardware Specifications

Measured Value (PV) Input Alarm Functions

Input: 1 point

•

Input type: Universal; can be selected by software

•

Input accuracy (at 23 ±2°C ambient temperature)

•

Thermocouple: ±2°C

•

However,

•

±4°C for thermocouple input –200 to –100°C

•

±3°C for thermocouple input –100 to 0°C

•

±5°C for type R and S (±9°C for 0 to 500°C)

•

±9°C for type B

RTD: ±1°C ±1digit

•

Voltage(mV, V) : ±0.3%

•

Sampling period for measured value input: 500ms

•

Burn-out detection: Functions for thermocouple or RTD input

•

(burn-out upscale only; cannot be switched off)
Input resistance: 1MΩ or greater for thermocouple

•

or DC mV input. Approx. 1MΩ for DC V input
Maximum allowable signal source resistance :

•

Maximum allowable wiring resistance for RTD input:

•

10Ω/wire (The resistance values of three wires must be the same.)
Allowable input voltage: ±10V DC for thermocouple or DC mV input

•

Noise rejection ratio:

•

(50/60Hz)
(Min. 90dB for DC V input)
Error of reference junction compensation:±1.5°C (at 15-35°C)

•

The reference junction compensation cannot be switched off.
Applicable standards:

•

Thermocouple and resistance temperature detector
JIS/IEC/DIN (ITS90)

(accuracy is not guaranteed for 0 to 400°C)

250

Ω

for thermocouple or DC mV input

2k

Ω

for DC V input

±20V DC for DC V input

Normal mode noise: Min. 40dB

Common mode noise: Min. 120dB

±2.0°C (at 0-50°C)

Control Output

Output: 1 point (for standard type) or

•

2 points (for heating/cooling type)

Output type: Choose one from (1) to (3) below:

•

(1) Relay contact output
Contact capacity: 3A at 240V AC or 3A at 30V DC
(with resistance load)
Note: The control output relay cannot be replaced by users.
(2) Voltage pulse output
On voltage: 12-18V DC load resistance: 600Ω or greater
Off voltage: 0.1V DC or less short-circuit current: approx. 30mA
(3) Current output
Output signal: 4 to 20mA
Maximum load resistance: 600Ω
Output accuracy: ±0.3% of span
(at 23±2°C ambient temperature)

■

Alarm Functions (Option Code /AL or /HBA)

Alarm types: 22 types

•

(waiting action can be set by software):
PV high limit, PV low limit, Deviation high
limit, Deviation low limit, De-energized on
deviation high limit, De-energized on deviation
low limit, Deviation high and low limits, High
and low limits within deviation, De-energized
on PV high limit, De-energized on PV low
limit, Fault diagnosis output, FAIL output
Alarm output: 2 relay contacts

•

Relay contact capacity: 1A at 240V AC or 1A
at 30V DC (with resistance load)
Note: The alarm output relays cannot be replaced by users.

■

Heater Disconnection Alarm (Option Code /HBA)

The heater disconnection alarm is available when time­proportional PID control or on/off control is selected.

Heater current setting range: 1 to 80A

•

Alarm output: 1 relay contact

•

(The terminals are the same as those of the /AL option.)
On time of burn-out detection: Min. 0.2 second

•

Sensor:

CTL-6-S-H or CTL-12-S36-8

•

(URD Co., Ltd.)

To be purchased separately.

■

Timer Function (Option Code /AL/EX or /HBA/EX)

The output contact status changes when the preset time
has passed since external contact (TMR) turned on.
The contact action can be selected by software from:
(1)

Make contact–the contact closes upon time-up.

(2)

Break–the contact opens upon time-up.

Input contact type: See Contact Inputs below.

•

Retransmission Output

The retransmission output is provided only when
the /RET option is specified, but is not available for
the heating/cooling type.

Output signal: Measured value in 4-20mA DC

•

Maximum load resistance: 600Ω

•

Output accuracy: ±0.3% of span

•

(at 23±2°C ambient temperature)

Entran

abl

Measurement category

1
2
3
4

CAT.1

For measurements performed on circuits not directly connected to MAINS
For measurements performed on circuits directly connected to the low voltage installation.

CAT.2

For measurements performed in the building installation.

CAT.3

For measurements performed at the source of the low-voltage installation.

CAT.4

utle

Description

IM05C01E12-01E

Contact Inputs

The contact inputs are provided only when the
/EX option is specified.

Functions: (1) SP1/SP2 switching

•

(2)

Starting a timer (See the
(3) RUN/STOP switching
Can be selected by parameter DIS.

Input: 2 points (with the shared common terminal)

•

Input type: Non-voltage contact or transistor contact input

•

Contact capacity: At least 12V/10mA

•

On/off judgment: On state for 1kΩ or less; off state

•

for 20kΩ or greater

Alarm Functions .)

Communication Function

The communication function is provided only when the /RS
option is specified. (For details, read the instruction manual
of the communications functions IM 05C01E12-10E.)

■Communication Protocol

Personal computer link: Used for communication with a

•

personal computer, or UT link module of the FA-M3
controller (from Yokogawa Electric Corporation).
Ladder communication: Used for communication with a

•

ladder communication module of the FA-M3, or a
programmable controller of other manufacturers.
MODBUS communication: Used for communication with

•

equipment featuring the MODBUS protocol.

■Communication Interface

Applicable standards: Complies with EIA RS-485

•

Number of controllers that can be connected: Up to 31

•

Maximum communication distance: 1,200m

•

Communication method: Two-wire half-duplex,

•

start-stop synchronization, non-procedural
Baut rate: 2400, 4800, or 9600 bps

•

Safety and EMC Standards

Safety: Compliant with IEC/EN61010-1: 2001, approved

•

by CSA1010, approved by UL508.
Installation category : CAT. II (IEC/EN61010, CSA1010)
Pollution degree : 2 (IEC/EN61010, CSA1010)
Measurement category : I (CAT. I : IEC/EN61010)

Rated measurement input voltage : 10V DC max.(across

terminals), 300V AC max.(across ground)

Rated transient overvoltage : 1500V (Note)

Note : It is a value on the safet
b

IEC/EN61010-1 in measurement category I, and is not

the

alue which guarantees an apparatus performance.
Caution: This e
therefore do not use the e
within measurement cate

EMC standards: Complies with EN61326.

The instrument continues to operate at a measurin
accuracy of within ±20% of the range during tests.

standard which is assumed

ment has Measurement category I,

ment for measurements

ories II, III and IV

Remarks

Appliances, portable equipments, etc.
Distribution board, circuit breaker, etc.
Overhead wire, cable systems, etc.

2

Power Supply and Isolation

■

Power Supply

Voltage

Power
supply

Frequency

Maximum power consumption
Memory

Between primary terminals

Withstanding

and secondary terminals

voltage

(See notes 1 and 2.)
Between primary terminals

Insulation

and secondary terminals

resistance

(See notes 1 and 2.)

Note 1:

The primary terminals are the power supply terminals and

relay output terminals.
The secondary terminals are the analog input and output terminals,
the voltage pulse output terminals, and the contact input terminals.

Note 2: AC/DC 24V terminals are secondary terminals.

■ Isolation

The bold lines below indicate reinforced isolation, and
the broken line indicates functional isolation.

Power supply

•

terminals
(100-240V AC)

Control output

•

terminals
(relay contacts)

Alarm output

•

terminals
(2 relay contacts)

Note: Neither the measured value input terminals, CT input

terminals for the /HBA option, nor 2 input terminals for
the /EX option are isolated from the internal circuit.

IMPORTANT

Alarm Outputs

11

ALM2

12

ALM1

13

COM

When “/AL” or “/HBA”
is specified.

6

11

7

12

8

13

9

14

10

15

1

2

RUN/STOP
switching

STOP
when DI=ON

SP1/SP2
switching

SP2
when DI=ON

1

2

RUN/STOP
switching

STOP
when DI=ON

SP1/SP2
switching

SP2
when DI=ON

1121

22

12

23

13

24

14

25

15

26

16

27

17

28

18

29

19

30

20

Power Supply

L

19

20

N

100-240V AC

Rated at 100-240VAC (±10%)
AC/DC 24V when
⬙/V24⬙ is specified.

50 or 60Hz
8VA max. (4W max.)

3W max. when
⬙/V24⬙ is specified.

Non-volatile memory
1500V AC

for 1 minute
20MΩ or more at

500V DC

Power supply

•

terminals AC/DC 24V
(When ⬙/V24⬙ is specified)

Measured value input

•

terminals
CT input terminals

•

for /HBA
2 input terminal

•

for /EX
Internal circuit

•

Control output terminals:

•

4-20 mA/Voltage pulse
RS-485 terminals

•

for /RS

Note 1: The heater current detection input terminals (option code: /HBA)

are defined as terminals and for a standard type and as

3 4

terminals and for a heating/cooling type.

Measured Value (PV) Input

TC Input

7

+

8

–

9

10

100-240V AC

Power Supply

L

N

1 2

RTD Input

6

B

7

b

8

A

9

+

10

–

Universal input-selectable
input type

NOTE

AC/DC 24V

When ⬙/V24⬙

is specified.

DC mV or V Input

7

+

–

8

CAUTION

To prevent damage to
the controller, never
provide 100-240V AC
power supply for power
supply AC/DC 24V
model (when ⬙/V24⬙ is
specified).

Heating-side Control Output

+

–

B
b
A

4 to 20 mA DC Output

+

14

–

15

Universal input-selectable
input type

DC mV or V Input

12

+

–

13

Relay Contact Output

Specify one for the output signal type.

Note: The terminal arrangements of the UT152 and

Voltage Pulse Output

NO

14

15

COM

14

15

UT155 are the same.

Measured Value (PV) Input

TC Input

12

13

+

–

RTD Input

11
12
13

Heating-side Control Output

Relay Contact Output

NO

14

COM

15

Specify one for the output signal type.

NOTE

To prevent damage to

19

+

20

–

the controller, never provide
100-240V AC power supply

AC/DC 24V

for power supply AC/DC 24V
model (when ⬙/V24⬙ is

When ⬙/V24⬙

specified).

is specified.

Voltage Pulse Output

14

15

CAUTION

4 to 20 mA DC Output

+

–

14

15

Alarm Outputs

When “/AL” or “/HBA”
is specified.

NOTE

The and stand for the polarity

+

for DC 24V power supply.

+

–

16

ALM2

17

ALM1

18

COM

–

Construction, Mounting, and Wiring

Construction: Dust-proof and drip-proof front

•

panel conforming to IP65 [Model UT150] and
IP55 [Models UT152 and UT155].
For side-by-side close installation the
controller loses its dust-proof and drip-proof
protection.
Casing: ABS resin and polycarbonate

•

Case color: Black

•

Mounting: Flush panel mounting

•

Terminals: Screw terminals

•

Environmental Conditions

■Normal Operating Conditions

Warm-up time: At least 30 minutes

•

Ambient temperature:0-50°C (0-40°C when

•

mounted side-by-side)
Rate of change of temperature: 10°C/h or less

•

Ambient humidity: 20-90% RH (no condensation allowed)

•

Magnetic field: 400A/m or less

•

Continuous vibrations of 5 to 14Hz: Amplitude of 1.2mm or less

•

Continuous vibrations of 14 to 150Hz: 4.9m/s

•

Short-period vibrations: 14.7m/s2 (1.5G) for 15 seconds or less

•

Shock: 98m/s2 (10G) for 11 milliseconds or less

•

Mounting angle: Upward incline of up to 30

•

degrees; downward incline is not allowed.
Altitude: 2000m or less above sea level

•

■

Maximum Effects from Operating Conditions

(1) Temperature effects

Thermocouple, DC mV and DC V input: ±2µV/°C

•

or ±0.02% of F.S./°C, whichever is the larger
Resistance temperature detector: ±0.05°C/°C

•

Analog output: ±0.05% of F.S./°C

•

(2) Effect from fluctuation of power supply voltage

(within rated voltage range)

Analog input: ±0.2µV/V or ±0.002% of F.S./V,

•

whichever is the larger
Analog output: ±0.05% of F.S. /V

•

■

Transportation and Storage Conditions

Temperature: –25 to 70°C

•

Humidity: 5 to 95% RH (no condensation allowed)

•

Shock: Package drop height 90cm (when packed in

•

the dedicated package)

2

(0.5G) or less

7. Key Operations

CAUTION

To prevent electric shock, the controller should be mounted on the panel so that you do not accidentally touch
the terminals when power is being applied.

IMPORTANT

The temperature controller is shipped with the parameters set at the factory-set defaults. Check the default
values against the “Parameter Lists” in the following page, and change the parameter settings that need to be
changed.

This section explains how to set and register parameter values.
The procedure for changing SP (target setpoint) and A1 (alarm 1 setpoint) can be found on “Changing Target
Setpoint (SP)” and “Changing Alarm 1 Setpoint (A1),” respectively. You can set the other parameters in the same way.

There are no setup displays for parameters specific to functions, such as the optional alarm output functions or
heating/cooling control, if they were not selected at ordering.
The setting of some parameters (such as the control mode parameter CTL) determines whether the other parameters
are displayed or not.

The flowchart below will help you understand how this works.

NOTE

At power-on, the temperature controller displays the operating display 1 , but if the measured input range
setting remains OFF, then “IN” appears. In this case, press the key to display the measured input range code
you want to use, then press the key to register it. (Refer to the flowchart below.)

■ Changing Target Setpoint (SP) ■ Changing Alarm 1 Setpoint (A1)

(This setpoint appears only if the /AL or /HBA option is specified.)

The following instructions assume that the
controller is already receiving power.

Step 1:

Confirm that the controller
shows the operating display 1
during normal operation (PV
and SP are displayed on the
indicators).

Step 2:

Press the or key to
change the displayed SP value
to the required value. In this
example, SP is changed to
200°C.

The period flashes while the value is being changed.

Step 3:

Press the key once to
register the setting.
The period goes out.
SP is now changed.

Step 1:

Confirm that the controller
shows the operating display 1
during normal operation (PV
and SP are displayed on the
indicators).

Step 2:

To enter the operating parameter
setting display, press the key
for at least 3 seconds.
If your controller has the /AL
or /HBA option, the display for
the Alarm 1 setpoint (A1)
appears. {If not, control mode
(CTL) appears.}

Press for at least 3 seconds.

Step 3:

Press the or key to
change the current A1 value
to a required value. In this
example, A1 is changed to
200°C.

The period flashes while the value is being changed.

(1) You can move between parameter setting displays using the
(2) To change the set value,

(i)

Change the display value with the or key (the period flashes).

(ii) Press the key to register the setting.

(3)

At the operating display 1 or 2 , pressing the

(4)

At the operating parameter setting display, pressing the

key for at least 3 seconds retrieves the operating parameter setting display.

key for at least 3 seconds transfers back to the oper-

key.

Note: If you cannot change the

parameter setting value,
check the key-lock param­eter (LOC) setting.

ating display 1 . Registering the key-lock parameter LOC to “–1” retrieves the setup parameter setting display.

(5)

At the setup parameter setting display, pressing the

A

When measured input range code has been already set, the
operating display 1 shown below appears.

key for at least 3 seconds transfers back to the operating display

Power ON

is displayed

YesNo

?

Operating display

Measured input value (PV)
Target setpoint (SP1 or SP2)

Press the

key

to move
between items.

T1
T2

1

SP1 or SP2 value can be changed
at operating display 1

Operating display

Displayed only for the
/AL/EX option with AL1,
AL2 = 23 or 24.

NOTE

In STOP mode, or
PV value is displayed on PV

2

display alternately.

Note:

If no key is pressed for a period
of two minutes or more while in
the operating or setup parameter
setting display, the controller
automatically returns to operating
display 1 .

When “In” appears, press the
key to display the measured input
range code you want to use, then
press the key to register it.
After this operation, the controller
shows the operating display 1 .

NOTE

NoteNote

Press the

key

for at least

3 seconds.

Press the

key

to move
between items.

CTL

CTL

=SLF
(Dynamic
Auto Tune)

Note

CTL=SLF is not
permitted for
heating/cooling
type.

FL
BS

LOC

LOC=

Press the

key for

at least 3 seconds.

(To operating

display 1 )

key for

at least 3 seconds.

(To operating

display 1 )

Operating parameter setting display

Displayed only for the /AL or

•

A1
A2

HC

AT

MR

COL

DB

CT

CTC

SP1
SP2

When
–1

Set ⬙-1⬙ to enter the setup parameter setting
display. But if ⬙LOC=1 or 2⬙ is already set, the
parameter value can not be changed by setting
⬙LOC=-1⬙ only. To change the parameter value,
set ⬙LOC=0⬙ at first (for disabling keylock),
then set ⬙LOC=-1⬙ once again.

/HBA option

•

Not displayed when AL1, AL2 = OFF

•

Not displayed when AL1,
AL2 = 21 or 22

•

Displayed only for the /HBA option
and when AL1 = 25

CTL=PID

(PID control)

P

I

D

Displayed when I=OFF
Displayed for heating/

cooling type

Displayed for heating/
cooling type

Displayed for time­proportional PID control

Displayed for time­proportional PID control
of heating/cooling type

Displayed for the /EX option

When LOC=–1

transfers to the

setup parameter

setting display

NOTE

HYS

CTL=ONF
(on/off

control)

Press the

to move
between items.

,

Press the

Setup parameter setting display

IN

key

SPH
SPL
UPR
DNR
TMU

SC
DR

Changing certain setup parameters may automatically
initialize the operating parameters. Therefore, after you
change the setup parameters, always check the operating
parameter settings to find out if appropriate values have
been set for them. If the operating parameters have been
initialized, set them to their appropriate values.

DP

Displayed when DC voltage

RH

input range code is set

RL

DIS

Displayed for

RTL

the /EX option

Displayed for
the /AL/EX or /HBA/EX option

Displayed for
the /RET option

EOT

TTU

RTH

AL1
AL2

Displayed for the /AL or

HY1

/HBA option

HY2

Not displayed when CTL=ONF
(on/off control)
Not displayed for heating/cooling type

PSL
ADR
BPS

Displayed for the /RS option

PRI

STP
DLN

1 .

A

NOTE

3

The period goes out.

Step 4:

Press the key once to
register the setting.
The period goes out.
A1 is now changed.
Another press of the

key calls up the Alarm 2

setpoint(A2) display.

The period goes out.

To return to the operating

display 1 , press the key for at least 3 seconds.

● UT150/UT152/UT155 Measured Input Ranges

Input type Range (°C

K

J
T
E
R
S

Thermocouple

B
N
L
U

Platinel 2

Pt100

RTD

JPt100

0 to 100mV

0 to 5V
1 to 5V

0 to 10V

DC voltage

–270 to 1370 °C

0.0 to 600.0°C

0.0 to 400.0°C

–199.9 to 200.0 °C
–199.9 to 999.9 °C
–199.9 to 400.0 °C
–199.9 to 999.9 °C

–200 to 1300 °C
–199.9 to 900.0 °C
–199.9 to 400.0 °C

–199.9 to 850.0 °C

0.0 to 400.0°C

–199.9 to 200.0 °C

–19.9 to 99.9 °C
–199.9 to 500.0 °C

0.0 to 100.0

0.000 to 5.000

1.000 to 5.000

0.00 to 10.00

0 to 1700°C
0 to 1700°C
0 to 1800°C

0 to 1390°C

User-scalable

)

Range code (°C

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

)

–199.9 to 999.9 °F

–199.9 to 999.9 °F

)

Range (°F

–300 to 2500 °F

32.0 to 999.9°F

32.0 to 750.0°F

–300 to 400 °F

–300 to 2100 °F

–300 to 750 °F

–300 to 1800 °F

32 to 3100°F
32 to 3100°F
32 to 3200°F

–300 to 2400 °F
–300 to 1600 °F

–300 to 750 °F

32 to 2500°F

32.0 to 750.0°F
–300 to 400 °F

Range code (°F

31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

)

For example, to select
thermocouple type E (°F),
set the range code to 37.

8. Troubleshooting

Is the controller defective?

Yes

Completely inactive?

Yes Yes

Check the terminal connection
of the power supply

Check the power
supply voltage

Normal?

Yes

Contact us for repair Problem solved

■ Error Display during Operation

(1) If the controller displays one of the following, carry out the appropriate remedy for the particular error.

Display

Flashing period
on PV display

(2)

The controller needs to be repaired if any of the indications in the table below appear.

In these cases, do not try to repair the controller yourself. Order a new controller or contact us for repair.

Display

Unknown (at power-on)
All extinguished (at power-on)
“Err” (at power-on)

■ When Power Failure Occurred during Operation

●Momentary power failures of less than 20ms(or less than 1ms when ⬙/V24⬙ is specified)

have no effect on the controller operation (i.e., normal operation continues).

●For power failures longer than 20ms(or longer than 1ms when ⬙/V24⬙ is specified), however

the status will be as follows.
(The controller action at power recovery is the same as at power-on.)

• Alarm action: Continues (but alarms with a waiting action enter the waiting state once)

• Setting parameters: Maintained

• Auto-tuning: Canceled

In the event of an abnormality, perform the following checks as outlined by
the flowchart.

No

No

No

No

Correct it

Normal?

Yes

Key operation failure?

Check key-lock
setting

Is the key

Cancel the setting

Error content Remedy

The parameter is abnormal

P.Er

Input burnout

B.o

PV over-scale
(PV exceeds its effective range.)

OOO

PV under-scale
(PV falls below its effective range.)

UUU

Communication failure
(for /RS option only)

Error content

CPU failure
Power source failure
Calibration abnormal

No No No

Display failure? I/O signal failure?

Yes Yes Yes

Turn the power off,
then on

locked?

Yes

Check the settings of all the parameters and set them
at their proper values.

Check the sensor wiring and correct it.

Check the input type and range settings and
correct them.

Press any key to stop the flashing.

Display

Flashing “Err” (at power-on)
Flashing “Err”

(during operation)

Verify the I/O spec.
of controller

Verify the spec. of
I/O destinations

No communication capability

Error content

RAM or ROM failure
A/D converter failure,

RJC failure, or EEPROM failure

IM05C01E12-01E

Communication

failure?

Check the model
and suffix codes

No

Communication

function included?

Check the communication­related parameters

Check the
communication wiring

Verify the spec. of
communicating partner

■ Alarm Function List

Alarm type

“Opn” and “Cls” indicate that the relay contact is
opened and closed; “(on)” and “(off)” indicate that
the lamp is on and off; and white triangles indicate
temperature control setpoints.

No alarm

PV

high limit

Opn (off)

Measured value

PV

low limit

Deviation
high limit

Deviation

Measured value

Cls (on)

low limit

De-energized

on deviation

high limit

Measured value

Fault

diagnosis

alarm

The output contact is opened in the following events:

FAIL

output

• Program error

• ROM error

• RAM error

• power failure

External contact
(TMR) Opn

Timer

function

The output contact closes when the timer setting has passed
since external contact was closed. Then, the output contact
opens immediately when external contact is opened.

Note: The alarms numbered 1 to 10 have no waiting

action, while alarms 11 to 20 have a waiting
action.
The waiting action turns off the PV and deviation
alarms that occur from the start of the control
operation until a stable state is reached.

Action

Hysteresis

Cls (on)

Alarm setting

Hysteresis

Opn (off)Cls (on)

Alarm setting

Hysteresis

Opn (off)

Temperature setpoint

Deviation setting

Temperature setpoint

The contact is closed at input
burnout.

Opn
(off)

Time

Measured value

Deviation setting

Hysteresis

Opn (off)

Measured value

Temperature setpoint

Hysteresis

Opn (on)Cls (off)

Deviation setting

• A/D converter error

• RJC error

• EEPROM error

Cls

Cls (on)

Blinking

Timer setting

Cls (on)

■ Description of Parameters

type code

Closed contact

during alarm

11

(See note.)

12

(See note.)

13

(See note.)

14

(See note.)

21

Opn

Opn
(off)

23

Alarm

Alarm type

Open contact

during alarm

OFF

1

De-energized

on deviation

low limit

2

Deviation

high and low

3

Deviation

within high-

and -low-

4

De-energized

high limit

5

De-energized

15

(See note.)

low limit

Break timer

function

22

disconnection

Waiting action

Action

Hysteresis

Opn
(off)

Cls (on)

Hysteresis

Alarm setting

Measured value

Temperature setpoint

Hysteresis Hysteresis

Temperature setpoint

Hysteresis Hysteresis

Temperature setpoint

Hysteresis

Measured value

Measured value

Opn (on)

limit

limit

on PV

“Opn” and “Cls” indicate that the relay contact is
opened and closed; “(on)” and “(off)” indicate that
the lamp is on and off; and white triangles indicate
temperature control setpoints.

Opn (on) Cls (off)

Deviation setting

Cls

(on)

Deviation setting

Deviation setting

Cls

(off)

Measured value

on PV

Alarm setting

External contact

(TMR) Opn

Cls (off)

Time

The output contact opens when the timer setting has passed
since the contact was closed. Then, the output contact closes
immediately when external contact is opened.

Heater

alarm

°C

Power-on

Opn (off)

Heater current Alarm setting

The controller starts measuring the current from
the heater disconnection detector when 100
milliseconds have passed after turning on the
output.

Taken as

normal.

In this area, the alarm output is turned
off even when a measured value falls
below the low limit alarm setpoint.

Blinking

Timer setting

Normal

Measured value

Cls

Opn (on)

Abnormal

Alarm output = ON

Opn (off)Opn (off)

Cls (off)Opn (on)

This section describes the parameter functions specific to the UT150/UT152/UT155 temperature controllers.
(The functions described in other sections of this manual and the general functions are not discussed.)

Parameter Function Parameter Function

Control mode

CTL

Manual reset

MR

Cooling-side
gain

COL

Deadband

DB

Hysteresis for
on/off control

HYS

Control output
/ cooling-side
control output
cycle time

CT
CTC

PV input filter

FL

Select one from the following:
a. Dynamic auto tune control (SLF)
b. PID control (PID)
c. On/off control (ONF)
Note: Dynamic auto tune control is not available

for heating/cooling control.
Read the section below this table to find out more
about dynamic auto tune control.

You can set this parameter only for control
without an integral action (when registered as
CTL=PID and I=OFF). The controller outputs the
manual reset (MR) value when PV=SP. For
example, if you set MR=50%, the controller
outputs (OUT) 50% when PV=SP.

For heating/cooling control, you can set the ratio
between the cooling-side output and heating-side
output.
For example, if you set COL=2.0 and the heating­side output is 10% at a certain deviation (SP-PV),
then the cooling-side output will be 20% when the
cooling-side also reaches that deviation.

You can only set a deadband for heating/cooling
control. In a positive deadband, there are neither
heating-side nor cooling-side outputs. In a
negative deadband, there are both heating-side and
cooling-side outputs, which overlap each other.

1.

When the deadband of a heating/
cooling type is positive
(Proportional band [P] control)

100%

Deadband

DB (+)

Cooling

side

0%

PV

For on/off control (CTL=ONF), you can set a
hysteresis around the on/off point (SP) to prevent
chattering.

The cycle time is the period of on/off repetitions
of a relay or voltage pulse output in time
proportional PID control. The ratio of the ON time
to the cycle time is proportional to the control
output value.

This function should be used when the PV display value
may fluctuate greatly, for example, when the measured
input signal contains noise. The filter is of the first­order lag type, and FL sets the time constant. If a larger
time constant is set, the filter can remove more noise.

Input

OFF

ON

Heating

side

100

100%

On/off point (SP)

2-seconds filter

(See note)

2.

When both the heating and cooling
sides are under on-off control

HYS HYS

ON

Deadband

DB (+)

OFF

0SP

PV

100%

Hysteresis

Cycle time

t ON

t OFF

10-seconds filter

ON

OFF

1000SP

PV input bias

BS

Decimal point
of measurement
input

DP

Maximum/minimum
value of
input scale

measured

RH,
RL

Maximum/minimum
value of
target setpoint range

SPH,
SPL

Setpoint ramp
up/ramp-down
rate

UPR,
DNR

Hysteresis for
alarm 1 and 2

HY1,
HY2

SUPER
function
selection

SC

This function adds a bias value to the measured input value,
and the result is used for display and control computation.

PV value inside the controller

This function is useful for carrying out fine adjustment when
the PV value is within the required accuracy but it differs
from the value obtained by other equipment.

For DC voltage input, the input signal can be scaled for the
particular engineering unit. For example, if you set the input
type (IN) at range code 22, the initial range is 0.0 to 100.0.

Using DP, set the decimal point position fit for the

a.

engineering unit you want to use. (In the example below,
the 2 digits to the right of the decimal point)

b.

Next, register the scale values of the measured input scale using
RH and RL. (In the example below, RH=10.00 and RL=0.00)

Using the SPH and SPL parameters, you can limit
the setting range of the target setpoint (SP) within
the measured input range(scale).

This function prevents SP from being mistakenly
set at too large or too small a value (beyond the
setting range).

To prevent a sudden change in SP, or to change SP at a
constant rate, ramp-up and ramp-down rates can be set
separately. This function operates at the following events.
a. SP change
b. SP1/SP2 switching
c. Power-on
At power-on, SP starts from
the current PV value.

measured input value

Initial scale

Measured input scale

(after being scaled)

R

egister the decimal point position using DP.

Set the ramp-rate time unit using parameter TMU.

The alarms are output as relay outputs. Since a
relay has a limited life, excessive on/off actions
will shorten the life of the alarm. To prevent this,
you can set a hysteresis to prevent excessive
on/off actions for both alarm 1 and alarm 2.

The SUPER function is effective in the following cases:
a. An overshoot must be suppressed.
b. The rise-up time needs to be shortened.
c. The load often varies.
d. SP is changed frequently.
Note 1: The SUPER function will not work when

on/off control is selected, or I or D
constants is set at OFF in PID control.

Note 2: For some types of systems, the SUPER

function may not be so useful. If this is
the case, turn off the function.

Closed contact

during alarm

Cls
(on)

(See note.)

(See note.)

Opn

Cls
(off)

Cls
(on)

Time

Alarm

type code

Open contact

during alarm

16

(See note.)

7

17

8

18

19

(See note.)

10

20

(See note.)

24

25

Low limit alarm
setpoint

PV bias+=

100.0 (5V)0.0 (1V)

10.00 (RH)0.00 (RL)

Ramp-rate
for n°C/min.
or n°C/h.

6

9

■ What is Dynamic Auto Tune Control?

Dynamic auto tune control is one of the features offered by the temperature controller.
When the controller is turned on or the measured input value (PV) starts “hunting”, this mode of control monitors
the behavior of the PV and/or OUT (control output value) to automatically determine the optimum PID constants.
This means that the PID constants may be changed automatically. If this is not desirable for your system, operate the
controller in the normal “PID control”.
If you want to automatically determine the PID constants at the initial startup of the controller, first define the target
setpoint (SP) and then turn the controller off once and then back on again. Do not use dynamic auto tune control for
a system where there is interference or continual disturbances.

■ Parameter Lists

(1) Target Setpoint (SP) and Timer Setting 1 and 2

Code Name Setting range and unit Default User setting

(SP value display)

T1

T2

Target
setpoint

Timer
setting 1

Timer
setting 2

Minimum value (SPL) to maximum value (SPH) of target setpoint range
Unit: °C/°F

0.0 to 99.59
Unit: minutes and seconds or hours and minutes
Set the timer time unit using parameter TTU.

For example, 15.25 sets 15 minutes and 25 seconds.
(T1 is for AL1, and T2 is for AL2)

Numbers in ( ) are the parmeter setpoints that apply when the
communication function is used. Ex. OFF(0), ON(1)

SPL

0.00

0.00

(2) Operating Parameters : Parameters changed rather frequently during operation.

Code Setting range and unit Default User setting

A1

A2

HC

CTL

AT

P

I

D

MR

COL

DB

HYS

CT

CTC

SP1

SP2

FL

BS

LOC

Name

Alarm 1
setpoint

Alarm 2
setpoint

Heater disconnection
current measured
value

Control mode

Auto-tuning

Proportional
band

Integral time

Derivative
time

Manual reset –100 to 100%

Cooling-side
gain

Deadband

Hysteresis for
on/off control

Control output
cycle time

Cooling-side
control output
cycle time

Target
setpoint 1

Target
setpoint 2

PV input filter

PV input bias

Key lock

■ PV alarm Unit: °C/°F

Setting range: minimum value to maximum value of
measured input range (scale)

■ Deviation alarm Unit: °C/°F

Setting range: –100 to 100% of the measured input range (scale) span

■ Heater disconnection alarm Unit: A (ampere)

Setting range: OFF(0), 1 to 80
(can be set for the alarm 1 setpoint only)

“HC” is not a parameter to be set. The current value (0 to 80) of heater disconnection
detector is displayed. Unit: A (ampere)
Settings: When the display value is ––––, the heater current is not being measured.

ONF(0): On/off control
PID(1): PID control

Dynamic auto tune control (cannot be set for heating/cooling control)

SLF(2):
OFF(0): Stop auto-tuning

ON(1): Start auto-tuning
1°C/°F to the temperature that corresponds to 100% of the

measured input range (scale) span
1 to 3600 seconds;

OFF(0): no integral action

1 to 3600 seconds;
OFF(0): no derivative action

0.01 to 9.99 times

■ PID control Unit: °C/°F

Setting range: –(proportional band setting) to +(proportional band setting)

■ On/off control Unit: °C/°F

Setting range: –50 to +50% of measured input range (scale)span

0°C/°F to the temperature that corresponds to 100% of the
measured input range (scale) span

1 to 240 seconds

1 to 240 seconds 30 seconds

Minimum value (SPL) to maximum value (SPH) of target
setpoint range
Unit: °C/°F

There are also optional engineering units for voltage input.

OFF(0), 1 to 120 seconds

–100 to 100% of measured input range (scale) span

0: No key lock
1: Prevents operations from being changed except for the

changing of SP in the operating display
2: Prevents all parameter changing operations
–1: Set ⬙-1⬙ to enter the setup parameter setting display.
But if ⬙LOC=1 or 2⬙ is already set, the parameter value can

not be changed by setting ⬙LOC=-1⬙ only. To change the

parameter value, set ⬙LOC=0⬙ at first (for disabling keylock),

then set ⬙LOC=-1⬙ once again.

Max. value of
measured input range
(scale) (PV alarm)

Min. value of
measured input range
(scale) (PV alarm)

SLF(2) :for standard type;
PID(1) : for

heating/cooling type

OFF(0)

5% of measured
input range (scale)
span

240 seconds

60 seconds

50.0%

for standard type

0.0% for
heating/cooling type

1.00 times

0% of measured
input range (scale)
span

0.5% of measured
input range (scale)
span

30 seconds

SPL

SPL

OFF(0)

0% of measured
input range (scale)
span

0

;

(3) Setup Parameters : Parameters rarely changed in normal use after once having been set.

Code Name Setting range and unit Default User setting

Measured

IN

DP

RH

RL

SPH

SPL

UPR

DNR

TMU

DIS

EOT

TTU

RTH

RTL

AL1

AL2

HY1

HY2

SC

DR

PSL

ADR

BPS

PRI

STP

DLN

input type

Decimal point
position of
measured input

Maximum value
of measured
input scale

Minimum value
of measured
input scale

Maximum value
of target setpoint
range

Minimum value
of target setpoint
range

Setpoint ramp­up-rate

Setpoint ramp­down-rate

Setpoint ramp­rate time unit

DI-function
selection

Output in STOP
mode

Timer time unit
Maximum value

of retransmission
output
Minimum value
of retransmission
output

Alarm 1 type

Alarm 2 type

Alarm 1
hysteresis

Alarm 2
hysteresis

SUPER
function

Direct/reverse
action

Protocol
selection

Controller
address

Baud rate

Parity

Stop bit

Data length

1 to 23, 31 to 48 (See input range code list.)
OFF(0): No input
(If no input type is specified at the time of ordering, you must set the input type.)

0: No decimal place (nnnn)
1: One decimal place (nnn.n)
2: Two decimal places (nn.nn)
3: Three decimal places (n.nnn)

(RL + 1) to 9999 100.0

–1999 to (RH –1) 0.0

(SPL+1°C) to the maximum value of the measured input range
(scale) ; Unit: °C/°F

Minimum value of measured input range (scale) to (SPH –1°C)
Unit: °C/°F

OFF(0)
or a value from the minimum to the maximum value of the
measured input range (scale)
Unit: °C/min or °C/hour, °F/min or °F/hour
Set the ramp-rate time unit using parameter TMU.

0 : °C or °F / hour
1 : °C or °F / min

External Contact Inputs

UT152

UT150

UT155

TMR
STOP

21

3

SP2
STOP

22

4

COM

23

5

In STOP mode by contact input, fixed control output can be
generated.
0 : 0%, 1 : 100%

0 : hour.minute
1 : minute.second

Temperature input : Within measured input range
Voltage input : RTL+1digit to max. value of measured input

(scale)(RH)
Min. value of measured input (scale)(RL) to RTH-1digit
However, RTL<RTH

OFF(0) or a value from 1 to 22 (see the table of alarm function
list), and either
23 or 24 (if the timer function [/EX option] is included), and
25 (if the heater disconnection function [/HBA option] is included)
OFF(0) or a value from 1 to 22 (see the table of alarm function
list), and either
23 or 24 (if the timer function [/EX option]) is included)

0 to 100% of measured input range (scale) span
Unit: °C/°F

ON(1): Uses the SUPER function
OFF(0): Does not use SUPER function
Note: Not displayed when on/off control

0: Reverse action
1: Direct action
Note: Not displayed for heating/cooling type

0: PC-link communication
1: PC-link communication with sum check
2: Ladder communication
3: MODBUS in ASCII mode
4: MODBUS in RTU mode

1 to 99
However, the number of controllers that can be connected per
host device is 31 at the maximum.

2.4(0): 2400 bps

4.8(1): 4800 bps

9.6(2): 9600 bps
NON(0): Disabled

EVN(1); Even parity
ODD(2): Odd parity

1 or 2 bits
7 or 8 bits

• 8 bits when ladder, MODBUS (RTU)

• 7 bits when MODBUS (ASCII)

(Displayed at voltage input)

(Displayed at voltage input)

(Displayed at voltage input)

0

Timer starts
when DI=ON

TMR

Timer stops

STOP

when DI=OFF

SP1/SP2

SP2

switching
SP2

STOP

when DI=ON

Parameter DIS

1

Timer starts
when DI=ON
Timer stops
when DI=OFF

RUN/STOP
switching
STOP
when DI=ON

2

RUN/STOP
switching
STOP
when DI=ON

SP1/SP2
switching
SP2
when DI=ON

OFF(0), or the input
range code specified
with order

1

Maximum value of
measured input
range (scale)

Minimum value of
measured input
range (scale)

OFF(0)

OFF(0)

1

0

0

1
Maximum value of

measured input range
(scale)

Minimum value of
measured input range
(scale)

1
(PV high limit alarm)

2
(PV low limit alarm)

0.5% of measured
input range (scale)
span

OFF(0)

0

0

1

9.6(2)

EVN(1)

1 bit

8 bits

IMPORTANT

To use dynamic auto tune control,
(1) be sure to turn on the final control element, such as a heater, before starting the control, and
(2) make sure the controlled loop is a closed loop.
If you do not follow these precautions, improper PID constants may be written into the controller. If this occurs,
carry out the following:

• Set the parameter CTL at PID.

•

Set the PID constants at the factory-set defaults (P = (upper range-limit - lower range-limit) × 5%; I = 240 s.; and D = 60 s.)

• Set the parameter CTL at SLF.
If the control still doesn’t work properly, stop using the dynamic auto tune control function. Change the param-

eter CTL setting to PID and execute auto-tuning to obtain the PID constants.

IM05C01E12-01E

4