Operating instructions

Electronic temperature sensor

TN21xx

TN23xx

TN24xx

TN26xx

80235797 / 00 02 / 2016

UK

2

Contents

1 Preliminary note ��3

1�1 Symbols used ��3

2 Safety instructions ��3

3 Functions and features ��4

4 Function ��4

4�1 Switching function ��4

4�2 Analogue function ��5

4�2�1 Current output ��6

4�2�2 Voltage output ��7

4�3 Display colour change ��8

4�3�1 Parameter r1ou, r2ou, G1ou, G2ou ��8

4�3�2 Parameter r-cF, G-cF �� 9

4�4 IO-Link ��9

4�4�1 General information ��9

4�4�2 Device-specific information ��9

4�4�3 Parameter setting tools ��9

5 Installation��9

6 Electrical connection ��10

7 Operating and display elements �� 11

8 Menu ��12

8�1 Process value display (RUN) and menu structure ��12

8�2 Explanation of the menu ��13

9 Parameter setting ��14

9�1 Parameter setting in general ��15

9�1�1 Change between the menus ��15

9�1�2 Change to the process value display (RUN mode) ��15

9�1�3 Locking / Unlocking ��16

9�1�4 Timeout �� 16

9�1�5 Configure colour change display ��16

9�1�6 Setting of the limit values for colour change ��16

9�1�7 Read the min/max values ��17

9�1�8 Resetting all parameters to factory setting ��17

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1 Preliminary note

1.1 Symbols used

► Instructions

> Reaction, result

[…] Designation of pushbuttons, buttons or indications

→ Cross-reference

Important note

Non-compliance can result in malfunction or interference�

Information

Supplementary note�

2 Safety instructions

• Please read this document prior to set-up of the unit� Ensure that the product is

suitable for your application without any restrictions�

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property can occur�

• Improper or non-intended use may lead to malfunctions of the unit or to unwan-

ted effects in your application� That is why installation, electrical connection,

set-up, operation and maintenance of the unit must only be carried out by

qualified personnel authorised by the machine operator�

• Check the compatibility of the product materials (→ Technical data) with the

media to be measured in all applications�

• The responsibility whether the measurement devices are suitable for the res-

pective application lies with the operator� The manufacturer assumes no liability

for consequences of misuse by the operator� Improper installation and use of

the devices result in a loss of the warranty claims�

10 Operation ��17

10�1 Reading of the set parameters ��17

10�2 Error indications / self-diagnostics �� 18

11 Technical data ��18

12 Factory setting ��19

4

3 Functions and features

The unit monitors the system temperature in machinery and plants�

4 Function

• The unit displays the current system temperature�

• It features an IO-Link interface and is designed for full bidirectional communi-

cation�

• The unit generates 2 output signals according to the parameter setting:

OUT1/IO-Link:

- Switching signal, limit values for temperature

OUT2: 2 selection options

- Switching signal, limit values for temperature

- Analogue signal for temperature

4.1 Switching function

OUTx changes its switching status if it is above or below the set switching limits�

Hysteresis or window function can be selected�

Hysteresis function Window function

SPx

rPx

FHx

FLx

T = Temperature

SPx = set point

rPx = reset point

HY = hysteresis

Hno = hysteresis NO (normally open)

Hnc = hysteresis NC (normally closed)

T = Temperature

FHx = upper limit value

FLx = lower limit value

FE = window

Fno = window NO (normally open)

Fnc = window NC (normally closed)

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When the hysteresis function is set, the set point (SPx) is defined first and

then the reset point (rPx) which must be of a lower value� If only the set

point is changed, the reset point remains constant�

When set to the window function the upper limit value (FHx) and the lower

limit value (FLx) have a fixed hysteresis of 0�25 % of the final value of the

measuring range� This keeps the switching state of the output stable if the

temperature varies slightly�

4.2 Analogue function

• The unit converts the measured signal into a temperature-proportional ana-

logue signal� Depending on the parameter setting the output signal is at:

4��20 mA [ou2] = I

20��4 mA [ou2] = Ineg

0��10 V [ou2] = U

10��0 V [ou2] = Uneg

• The analogue signal can be scaled, that means the limits of the measuring

range for the lower output signal (ASP2 = analogue start point) and the upper

output signal (AEP2 = analogue end point) can be set�

Minimum distance between [ASP2] and [AEP2] = 5 K�

6

4.2.1 Current output

Maximum measuring range at [ou2] = I Measuring range scaled at [ou2] = I

MAW MEW

20.5

20

4

3.8

T [°C/°F]

I [mA]

T [°C/°F]MEWMAW AEP2ASP2

20.5

20

4

3.8

MAW = initial value of the measuring range

MEW = final value of the measuring range

ASP2 = analogue start point

AEP2 = analogue end point

Within the measuring range the output signal is between 4 and 20 mA�

If the temperature value (T) is outside the measuring range, the following output

signal is displayed:

[ou2] = I [ou2] = Ineg

T < MAW (ASP2) 3�8��4 mA 20�5��20 mA

T > MEW (AEP2) 20��20�5 mA 4��3�8 mA

In case of internal fault, the output signal behaves according to the parameter set

in [FOU2]:

[FOU2] = On [FOU2] = OFF

[ou2] = I 21 mA 3�5 mA

[ou2] = Ineg 3�5 mA 21 mA

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4.2.2 Voltage output

Maximum measuring range at [ou2] = U Measuring range scaled at [ou2] = U

MAW MEW

10.3

10

T [°C/°F]

U [V]

T [°C/°F]MEWMAW AEP2ASP2

10.3

10

MAW = initial value of the measuring range

MEW = final value of the measuring range

ASP2 = analogue start point

AEP2 = analogue end point

Within the measuring range the output signal is between 0 and 10 V�

If the temperature value (T) is outside the measuring range, the following output

signal is displayed:

[ou2] = U [ou2] = Uneg

T < MAW (ASP2) 0 V 10�3��10 V

T > MEW (AEP2) 10��10�3 V 0 V

In case of internal fault, the output signal behaves according to the parameter set

in [FOU2]:

[FOU2] = On [FOU2] = OFF

[ou2] = U 10�6 V 0 V

[ou2] = Uneg 0 V 10�6 V

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4.3 Display colour change

The colour of the characters in the display can be set via the parameter [colr]�

With the parameters rED (red) and GrEn (green), the display is permanently set to

one colour� Via further parameters, the colour of the characters changes according

to the measured value:

OUT1 OUT2 OUT1 and OUT2 Colour change to��

Parameter r1ou r2ou r-cF red

G1ou G2ou G-cF green

4.3.1 Parameter r1ou, r2ou, G1ou, G2ou

SP1/

SP2

MAW MEW

Hysteresis function:

Colour change if measured value

is above the switch point

FL1/

FL2

FH1/

FH2

MAW MEW

Window function:

Colour change if measured value

is within the window range

MAW = initial value of the measuring range

MEW = final value of the measuring range

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4.3.2 Parameter r-cF, G-cF

cFL cFH

MAW MEW

Colour change if the measured value

is within definable limits�

4.4 IO-Link

4.4.1 General information

This unit has an IO-Link communication interface which requires an IO-Link-capa-

ble module (IO-Link master) for operation�

The IO-Link interface enables direct access to the process and diagnostic data

and provides the possibility to set the parameters of the unit during operation�

In addition communication is possible via a point-to-point connection with a USB

adapter cable�

You will find more detailed information about IO-Link at www�ifm�com/gb/io-link�

4.4.2 Device-specific information

You will find the IODDs necessary for the configuration of the IO-Link unit and

detailed information about process data structure, diagnostic information and

parameter addresses at www�ifm�com/gb/io-link�

4.4.3 Parameter setting tools

You will find all necessary information about the required IO-Link hardware and

software at www�ifm�com/gb/io-link�

5 Installation

Before installing and removing the unit: Ensure that no medium can leak at

the process connection�

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6 Electrical connection

The unit must be connected by a qualified electrician�

The national and international regulations for the installation of electrical

equipment must be adhered to�

Voltage supply to EN 50178, SELV, PELV�

► Disconnect power�

► Connect the unit as follows:

43

2 1

BK: black

BN: brown

BU: blue

WH: white

BN

WH

BK

BU

4

1

3

2

OUT2

L

+

L

OUT1

Colours to DIN EN 60947-5-2

Sample circuits:

2 x positive switching 2 x negative switching

L

+

3 BU

4 BK

2 WH

1 BN

L

+

3 BU

4 BK

2 WH

1 BN

1 x positive switching / 1 x analogue 1 x negative switching / 1 x analogue

L

+

L

3 BU

4 BK

2 WH

1 BN

L

+

L

3 BU

4 BK

2 WH

1 BN

Pin 1 L+

Pin 3 L-

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Pin 4

(OUT1)

• Switching signal: limit values for temperature

• IO-Link

Pin 2

(OUT2)

• Switching signal: limit values for temperature

• Analogue signal for temperature

7 Operating and display elements

4

2

1

6 5

3

1, 2, 3: Indicator LEDs

• LED 1 = switching status OUT1 (lights if output 1 is switched)

• LED 2 = temperature in the indicated unit of measurement

• LED 3 = switching status OUT2 (lights if output 2 is switched)

4: Alphanumeric display, 4 digits

• Display of current temperature in red or green colour�

• Display of the parameters and parameter values�

5: Buttons up [▲] and down [▼]

• Select parameters

• Change parameter values (hold button pressed)

• Change of the display unit in the normal operating mode (RUN mode)

• Locking / Unlocking (press buttons simultaneously > 10 seconds)

6: Button [

●

] = Enter

• Change from the RUN mode to the main menu

• Change to the setting mode

• Acknowledge the set parameter value

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8 Menu

8.1 Process value display (RUN) and menu structure

RUN

°C °F

ou1

Hno Hnc Fno Fnc

Lo

0,0 °C

Hi

0,0 °C

FOU1

OFF On

FOU2

OFF On

P-n

PnP nPn

uni

°F°C

Hno Hnc Fno Fnc

ou2

I Ineg U Uneg

coF

-10...10 °C

dr1

0,0...50 s

dS1

0,0...50 s

dr2

0,0...50 s

dS2

0,0...50 s

rES

- - - -

cFH

diS

coLr

rEd

r-cF G-cF

GrEn

r1ou G1ou

r2ou G2ou

cFL

rd1 rd2 rd3 OFF

d1 d2 d3

1)

EF

rP1

SP1

AEP2

ASP2

FH1

FL1

rP2

SP2 FH2

FL2

0,5...100 %

0,0...99,5 %

1)

The parameters are only displayed when [coLr] = r-cF or G-cF�

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8.2 Explanation of the menu

SP1 / SP2 Set point (upper limit value) with hysteresis function

rP1 / rP2 Reset point (lower limit value) with hysteresis function

FH1 / FH2 Set point (upper limit value) with window function

FL1 / FL2 Set point (lower limit value) with window function

ASP2 Analogue start point

AEP2 Analogue end point

EF Extended functions� Opening of the lower menu level�

rES Restoring the factory settings

ou1 Output function OUT1 (switching output):

Hno = Hysteresis function normally open

Hnc = Hysteresis function normally closed

Fno = Window function normally open

Fnc = Window function normally closed

ou2 Output function OUT2 (switching output or analogue output):

Hno = Hysteresis function normally open

Hnc = Hysteresis function normally closed

Fno = Window function normally open

Fnc = Window function normally closed

I = current signal 4��20 mA

Ineg = current signal 20��4 mA

U = voltage signal 0��10 V

Uneg = voltage signal 10��0 V

dS1 / dS2 Switching delay on OUT1 / OUT2 in seconds

dr1 / dr2 Switch-off delay on OUT1 / OUT2 in seconds

FOU1 /

FOU2

Behavior of output OUT1 / OUT2 in case of an internal fault�

1� Switching output (FOU1 / FOU2):

On = Output 1 switches on in case of a fault�

OFF = Output 1 switches off in case of a fault�

2� Analogue output (FOU2 → 4.2.1):

On = The analog signal goes to the upper limit value�

OFF = The analog signal goes to the lower limit value�

uni Standard unit of measurement for temperature (°C or °F)

P-n Output logic: pnp / npn

Lo

Minimum value of the temperature measured in the process since the last

reset or deletion of memory�

14

Hi

Maximum value of the temperature measured in the process since the last

reset or deletion of memory�

coF Zero-point calibration� The internal measured value 0 is shifted by this value�

coLr Colour configuration of the display:

rEd = Process value always red�

GrEn = Process value always green�

r1ou = Process value red in case of switched output OUT1�

G1ou = Process value green in case of switched output OUT1�

r2ou = Process value red in case of switched output OUT2�

G2ou = Process value green in case of switched output OUT2�

r-cF = Display red if measured value between limit values cFL��cFH,

irrespective of the output function�

G-cF = Display green if measured value between limit values cFL��cFH,

irrespective of the output function�

cFH Upper limit value for colour change temperature�

cFL Lower limit value for colour change temperature�

diS Update rate and orientation of the display:

d1 = update of the measured values every 50 ms�

d2 = update of the measured values every 200 ms�

d3 = update of the measured values every 600 ms�

rd1, rd2, rd3 = display as for d1, d2, d3; rotated by 180°�

OFF = The measured value display is deactivated in the RUN mode�

The LEDs remain active even if the display is deactivated�

Error messages

are displayed even if the display is deactivated�

9 Parameter setting

Parameters can be set before installation and set-up of the unit or during operation�

If you change parameters during operation, this will influence the function

of the plant�

► Ensure that there will be no malfunctions in your plant�

During parameter setting the unit remains in the operating mode� It continues to

monitor with the existing parameter until the parameter setting has been completed�

The parameters can also be set via the IO-Link interface (→ 4.4)�

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9.1 Parameter setting in general

1� Change from the RUN mode to the main menu [●]

2� Select the requested parameter [▲] or [▼]

3� Change to the setting mode [●]

4� Modification of the parameter value [▲] or [▼] > 1 s

5� Acknowledge the set parameter value [●]

6� Return to the RUN mode → 9.1.2

Press [▲] + [▼] simultaneously to leave the setting mode without saving

the changed parameter�

If [C�Loc] is displayed when attempting to change a parameter value, a

change is made via a parameter setting software at the same time (tempo-

rary locking)�

If [S�Loc] is displayed, the sensor is permanently locked via software� This

locking can only be removed with a parameter setting software�

9.1.1 Change between the menus

1� Change from the RUN mode to the main menu [●]

2� Select parameter EF [▼]

3� Change to the submenu EF [●]

4� Select parameter CFG, MEM, DIS [▼]

5� Change to the submenu CFG, MEM, DIS [●]

6� Return to the next upper menu [▲] + [▼] simultaneously

9.1.2 Change to the process value display (RUN mode)

There are 3 possibilities:

I� Wait for 30 seconds (→ 9.1.4)�

II� Press [▲] until the RUN mode is reached.

III� Press [▲] + [▼] simultaneously until the RUN mode is reached.

16

9.1.3 Locking / Unlocking

The unit can be locked electronically to prevent unintentional settings�

On delivery: not locked�

Locking ► Make sure that the unit is in the normal operating mode�

► Press [▲] and [▼] simultaneously for 10 s until [Loc] is displayed.

During operation: [Loc] is briefly displayed if you try to change

parameter values�

Unlocking ► Make sure that the unit is in the normal operating mode�

► Press [▲] and [▼] simultaneously for 10 s until [uLoc] is displayed.

9.1.4 Timeout

If no button is pressed for 30 s during parameter setting, the unit returns to the

operating mode with unchanged values�

9.1.5 Configure colour change display

► Select [coLr] and define the colour of the process value display:

rEd, GrEn, r1ou, G1ou, r2ou, G2ou, r-cF, G-cF (→ 4.3)�

[coLr]

9.1.6 Setting of the limit values for colour change

► Select [cFH] and set the upper limit value�

► Select [cFL] and set the lower limit value�

[cFH] and [cFL] are only displayed if [coLr] = r-cF or G-cF�

[cFH] und [cFL] are irrespective of the default set points� The setting

range corresponds to the measuring range and its minimum limit is

[cFL] and its maximum limit is [cFH]�

[cFH]

[cFL]

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9.1.7 Read the min/max values

► Select [Hi] or [Lo] and read the value�

[Hi] = max� value, [Lo] = min� value�

Delete memory:

► Select [Hi�T] or [Lo�T]�

► Briefly press [●].

► Keep [▲] or [▼] pressed.

> [----] is displayed�

► Briefly press [●].

It makes sense to delete the memories as soon as the unit operates

under normal operating conditions for the first time�

[Hi]

[Lo]

9.1.8 Resetting all parameters to factory setting

► Select [rES]�

► Press [●].

► Press [▲] or [▼] and keep pressed until [----] is displayed.

► Briefly press [●].

It is recommended to take down your own settings in the table before

carrying out the function → 12 Factory setting�

[rES]

10 Operation

After power on, the unit is in the RUN mode (= normal operating mode)� It carries

out its measurement and evaluation functions and provides output signals accord-

ing to the set parameters�

10.1 Reading of the set parameters

► Briefly press [●].

► Click [▼] to select the parameter.

► Briefly press [●].

> The unit displays the corresponding parameter value for about 30 s� After that

the unit returns to the RUN mode�

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10.2 Error indications / self-diagnostics

Diplay Warning message

[SC1] Excessive current at OUT1� LED1 for OUT1 flashing�

[SC2] Excessive current at OUT2� LED1 for OUT2 flashing�

[OL] Detection zone exceeded�

[UL] Below the detection zone�

[C�Loc] Setting pushbuttons locked, parameter change rejected�

Active IO-Link communication�

[S�Loc] Setting pushbuttons locked, parameter change rejected�

Unlock using parameter setting software�

Analogue signal in case of an error → 4.2�

11 Technical data

Technical data and scale drawing at www�ifm�com�

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12 Factory setting

Factory setting User setting

TN2xx5 TN2xx3

SP1 60 °C 140 °F

rP1 50 °C 122 °F

SP2 120 °C 248 °F

rP2 100 °C 212 °F

ASP2 -50 °C 0 °F

AEP2 150 °C 300 °F

uni °C °F

ou1 Hno

ou2 I

dS1 0

dr1 0

dS2 0

dr2 0

FOU1 OFF

FOU2 OFF

P-n PnP

coF 0

coLr rEd

diS d2

Further information at www�ifm�com