TN2430 - Temperature Controller IFM - Free user manual and instructions

Product type	Temperature controller
Brand	IFM
Model	TN2430
Power supply	20...30 V DC
Measuring range	-40...125 °C (-40...257 °F)
Switching output	1 transistor output, 250 mA, configurable (hysteresis or window, NO/NC)
Analog output	4...20 mA or 0...10 V, configurable
Display	Digital, resolution 0.5 °C / 1 °F, adjustable orientation
Accuracy (switching output)	± (PT1000 + 0.2 K)
Accuracy (analog output)	± (PT1000 + 0.2 K + 0.4% measurement range)
Protection	IP 67, class III
Housing material	304 stainless steel, PBTP (Pocan), PC (Macrolon), EPDM/X (Santoprene), FPM (Viton)
Ambient temperature	-25...70 °C
Storage temperature	-40...100 °C
Max output current	250 mA
Power consumption	< 66 mA
Measurement/display cycle time	200 ms
Mounting	Process connection G ½
Protection functions	Short circuits, reverse polarity, overloads, integrated watchdog
Maintenance	No maintenance required

Frequently Asked Questions - TN2430 IFM

How to set the high set point (SP1)?

Press Mode/Enter several times until SP1 is displayed. Then hold Set until the value flashes, then adjust with Set and confirm with Mode/Enter.

What is the difference between hysteresis and window outputs?

In hysteresis mode, the output switches when the temperature exceeds SP1 and falls below rP1. In window mode, the output is active (or not) as long as the temperature remains between rP1 and SP1.

How to configure the analog output as 4...20 mA?

In parameter AOU, select I for 4...20 mA. Use ASP and AEP to set the temperatures corresponding to 4 mA and 20 mA.

What do error codes OL and UL mean?

OL indicates too high temperature (exceeding range). UL indicates too low temperature. Check the probe and process.

How to clear the memory of max/min temperatures (HI/LO)?

Press Mode/Enter until HI or LO is displayed. Hold Set until '...' appears, then briefly press Mode/Enter.

Can the keyboard be locked to prevent accidental programming?

Yes, press both buttons (Mode/Enter and Set) simultaneously for 10 seconds. The display briefly turns off to confirm lock/unlock.

What is the display resolution?

The resolution is 0.5 °C or 1 °F depending on the unit chosen. You can also rotate the display 180° via parameter di5.

How to calibrate the zero point of the sensor?

Use parameter CAL to offset the measurement by -9.9 to +9.9 °C (in 0.1 °C steps). This compensates for deviations from a reference temperature.

What is the required supply voltage?

The device operates on 20...30 V DC. The power supply must be SELV/PELV according to EN50178.

How to electrically connect the sensor?

Use an ifm female connector (pinout: 1 = power supply +, 2 = switching output, 3 = GND, 4 = analog output). Respect the color codes and disconnect power before connection.

USER MANUAL TN2430 IFM

Operating instructions

Notice utilisateurs

Elektronischer

Temperatarsensor

Electronic

temperature sensor

M=Mode/Enter
S = Set

1 = BN (braun), 2 = WH (weiβ)

3 = BU (blau), 4 = BK (schwarz)

7. Programmieren

1. Controls and visual indication

①	Indicator for display unit	OFF = indication in °C; ON = indication in °F
②	7-segment display	display of the system temperature, display of parameters and parameter values
③	LED red	switching status; lights if the output has switched
④	LED red LED	ON = displayed temperature + 0.5°
⑤	Set button	setting of the parameter values (scrolling by holding pressed; incremental by pressing briefly)
⑥	Mode / Enter button	selection of the parameters and acknowledgement of the parameter values

2. Functions and features

• The temperature sensor detects the current system temperature,
• shows the current system temperature on its display (in ^ C or ^ F ),
• and generates 2 output signals according to the set output configuration.

output 1	output 2
hysteresis function / N.O. (Hno)	analog 4 ... 20 mA (I)
hysteresis function / N.C. (Hnc)
window function / N.O. (Fno)	analog 0 ... 10 V (U)
window function / N.C. (Fnc)

Measuring range

°C -40 ... +125
	-40 ... 257°F

Hysteresis:

The hysteresis keeps the switching state of the outputs stable if the system temperature varies about the preset value.

When the system temperature is rising, the output switches when the switch-on point has been reached (SP1); when the system temperature is falling again, the output switches back when the switch-off point (rP1) has been

reached. The hysteresis can be adjusted: First the switch-on point is set, then the switch-off point with the requested difference.

Window function:

The window function enables the monitoring of a defined acceptable range.

When the system temperature varies between the switch-on point (SP1) and the switch-off point (rP1), the output is switched (window function/NO) or not switched (window function/NC).

The width of the window can be set by means of the difference

between SP1 and rP1. SP1 = upper value, rP1 = lower value.

3. Operating modes

Run mode:

(Normal operating mode)

When the supply voltage has been applied, the unit is in the Run mode. It monitors and switches the transistor output according to the set parameters.

The value of the analog output depends on the system temperature. The LED display indicates the current system temperature, the red LED indicates the switching state of the transistor output.

Display mode:

(Indication of parameters and the set parameter values)

When the "Mode/Enter" button is pressed briefly, the unit passes to the Display mode which allows parameter values to be read. The internal sensing, processing and output functions of the unit continue as if in Run mode.

• The parameter names are scrolled with each press of the "Mode/Enter" button.
• When the "Set" button is pressed briefly, the corresponding parameter value is displayed for 5s. After another 5s the unit returns to the Run mode.

Programming mode:

(Setting of the parameter values)

The unit passes to the programming mode when after the selection of a parameter value (Display mode) the "Set" button is pressed until the display of the parameter value is changed. Internally the unit remains in the operating mode. It continues its monitoring function with the existing parameters until the change has been terminated.

You can change the parameter value by pressing the "Set" button and confirm it by pressing the "Mode/Enter" button. The unit returns to the Run mode when no button has been pressed for 5s.

4. Adjustable parameters

馔: see fold out page

SP1	Switch-on point: Upper limit value at which the output changes its switching status.
		setting range in steps of
	°C	-39.5 ... +125 0.5
		-39 ... +257 1°F
rP1	Switch-off point: Lower limit value at which the output changes its switching status.
		setting range in steps of
	°C	-40 ... +124.5 0.5
		-40 ... +256 1°F
	rP1 is always lower than SP1. The unit only accepts values which are lower than SP1.Changing the switch-on point also changes the switch-off point (the hysteresis remains constant).If the hysteresis is higher than the new switch point, it is automatically reduced (rP1 is set to the minimum setting value).
OU1	Configuration of the switching output4 switching functions can be set:Hno = hysteresis / normally openHnc = hysteresis / normally closedFno = window function / normally openFnc = window function / normally closed
ASP	Lower end of analog outputMeasured value for which the output signal is 4mA / 0V.
		setting range in steps of
	°C	-40 ... +115 0.5
		-40 ... +239 1°F
AEP	Upper end of analog outputMeasured value for which the output signal is 20mA / 10V.
		setting range in steps of
	°C	-30 ... +125 0.5
		-22 ... +257 1°F
	Minimum distance between ASP and AEP = 10°C / 18°F
AOU	Output function for the analog output 2 options can be selected: I = 4 ... 20 mA / U = 0 ... 10 V
d,5	Setting of the display 4 options can be selected: °C = display in °Celsius °F = display in °Fahrenheit r°C = display in °Celsius (inverted) r°F = display in °Fahrenheit (inverted)
CAL	Calibration offset The internal measured value (operating value of the sensor) is offset against the real measured value.
		setting range in steps of
	°C	-9.9 ... +9.9 0.1
		-17.5 ... +17.5 0.5°F
HI Lo	Min-Max memory for system temperature • Hi: displays the highest measured temperature • Lo: displays the lowest measured temperature Erase the memory: - Press the "Mode/Enter" button until HI or Lo is displayed. - Press the "Set" button and keep it pressed until "-" is displayed. - Then press the "Mode/Enter" button briefly. It is recommended to erase the memory as soon as the unit starts working under normal operating conditions.

5. Installation

Mount the temperature sensor to the G_1/2 process connection.

6. Electrical connection

The unit must only be connected by an electrician.

The national and international regulations for the installation of electrical equipment must be observed.

Voltage supply to EN50178, SELV, PELV.

Disconnect power before connecting the unit.

Wiring:

Core colours of ifm sockets:

1 = BN (brown), 2 = WH (white)

3 = BU (blue), 4 = BK (black)

7. Programming

1	Mode/Enter Set	→SP1	Press the Mode/Enter button several times until the respective parameter is displayed.
2	Mode/Enter Set	→70	Press the Set button and keep it pressed. The current parameter value is indicated for 5s, then the value is increased* (incremental by pressing briefly or scrolling by holding pressed).
		→100
3	Mode/Enter Set	→SP1	Press the Mode/Enter button briefly (= acknowledgement). The parameter is displayed again, the set parameter value becomes effective.
Wait 5s (the unit passes to the operating mode and the current measured value is indicated again), or start again with step 1 to program other parameters.

*Decrease the value: Let the display of the parameter value move to the maximum setting value. Then the cycle starts again at the minimum setting value.

Locking / unlocking:

The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press both pushbuttons for 10s. Indication goes out briefly (acknowledgement of locking / unlocking).

Units are delivered from the factory in the unlocked state.

8. Installation and set-up / operation

Check the safe functioning of the unit. The operation is maintenance-free. Failure indication:

OL	= too high a temperature
UL	= too low a temperature
SC 1	(FLASHING) = short-circuit in the switching output; the output is switched off.

9. Scale drawing

7-segment display programming button

10. Technical data

Operating voltage [V]	20 ... 30 DC
Current rating [mA].	250
Short-circuit protection, Reverse polarity protection / overload protection, Integrated Watchdog
Voltage drop [V].	< 2
Current consumption [mA]	< 66
Measuring element	1 x PT 1000 to DIN EN 60751, class B
Accuracy
Switching output	± (PT 1000 + 0.2 K)
Analog output	± (PT 1000 + 0.2 K + 0.4% of the set measuring span)
Display	± (PT 1000 + 0.2 K + 1/2 digit)
Resolution
Switching output [°C/°F]	0.5 / 1
Analog output [°C/°F]	0.125 / 0.23
Display [°C/°F]	0.5 / 0.5
Temperature drift [% of value of measuring range/10 K]	± 0.1
Measuring / display cycle [ms]	200
Power-on delay time [s]	1.5
Housing material	stainless steel (304S15); Pocan; PC (Macrolon); EPDM/X (Santoprene); FPM (Viton)
Materials (wetted parts)	stainless steel (303S22)
Operating temperature [°C]	-25 ... +70
Storage temperature [°C]	-40 ... +100
Protection	IP 67, III
Insulation resistance [MΩ]	> 100 (500 V DC)
Shock resistance [g]	50 (DIN / IEC 68-2-27, 11ms)
Vibration resistance [g]	20 (DIN / IEC 68-2-6, 10 - 2000 Hz)
EMC
IEC 1000/4/2 ESD:	4 / 8 KV
IEC 1000/4/3 HF radiated:	10 V/m
IEC 1000/4/4 Burst:	2 KV
IEC 1000/4/6 HF conducted:	10 V

1 = BN (brun), 2 = WH (blanc),

3 = BU (bleu), 4 = BK (noir)

7. Programmation