TN7430 - Temperature Controller IFM - Free user manual and instructions

USER MANUAL TN7430 IFM

• 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 Switching function (can be selected for each output separately) hysteresis function / N.O. (Hno) hysteresis function / N.C. (Hnc) window function / N.O. (Fno) window function / N.C. (Fnc)Measuring range: Hysteresis: The hysteresis keeps the switch- ing 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 (SPx); when the system temperature is falling again, the output switches back when the switch-off point (rPx) 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 (SPx) and the switch-off point (rPx), the output is switched (window function/NO) or not switched (window func- tion/NC). The width of the window can be set by means of the difference between SPx and rPx. SPx = upper value, rPx = lower value.

Fno acceptable range Fnc °C -40 ... +125 -40 ... 257°F2. 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 outputs according to the set parameters.. The LED display indicates the current system temperature, the red LEDs indicate the switching state of the transistor outputs. 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 inter- nal 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 para- meter 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.

143. Adjustable parameters

(menu sructure: see fold out page)

ENGLISH Switch-on point: Upper limit value at which the output changes its switching status. Switch-off point: Lower limit value at which the output chan- ges its switching status. rPx is always lower than SPx. The unit only accepts values which are lower than SPx. 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 (rPx is set to the minimum setting value).

setting range in steps of -40 ... +124.5 0.5 -40 ... +256 1°F Configuration of the switching outputs 4 switching functions can be set: Hno = hysteresis / normally open Hnc = hysteresis / normally closed Fno = window function / normally open Fnc = window function / normally closed 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) Calibration offset The internal measured value (operating value of the sensor) is offset against the real measured value.

setting range in steps of -9.9 ... +9.9 0.1 -17.5 ... +17.5 0.5°F4. Installation Mount the temperature sensor to the G½ process connection.

5. 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) Programming of complementary outputs: output 1: = Hno, output 2: = Hnc, SP1 = SP2 / rP1 = rP2.

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.

4: OUT1 2: OUT26. Programming Locking / unlocking: The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press (in Run mode) both pushbuttons for 10s. As soon as the indication goes out the unit is locked or unlocked. Units are delivered from the factory in the unlocked state.

Mode/Enter Set Mode/Enter Set Mode/Enter Set Press the Mode/Enter button several times until the respective parameter is displayed. 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). Press the Mode/Enter button briefly (= acknowledgement). The parameter is displayed again, the set parameter value becomes effective.

*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. 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.7. Installation and set-up / operation Check the safe functioning of the unit. The operation is maintenance- free. Failure indication:

= too high a temperature = too low a temperature (flashing) = short-circuit in switching output 1/ 2; the respective output is switched off. 6,5 110,5