Tecnologic TLK 38, TLK 48 Operating Instructions Manual

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TLK 38

MICROPROCESSOR-BASED

DIGITAL

ELECTRONIC CONTROLLER

OPERATING INSTRUCTIONS

Vr. 03 (ENG) - cod.: ISTR 06519

TECNOLOGIC S.p.A.

Distributed by:

GESINT S.R.L.

internet : http:\\www.gesintsrl.it

e-mail: info@gesintsrl.it

FOREWORD:

This manual contains the information necessary for the product to be installed correctly and also instructions for its maintenance and use; we therefore recommend that the utmost attention is paid to the following instructions. Though this manual has been issued with the greatest care, TECNOLOGIC S.p.A. will not take any responsibility deriving from its use. The same applies to each person or Company involved in the issuing of this manual. This document is the exclusive property of TECNOLOGIC S.p.A. which forbids any reproduction and divulgation , even in part, of the document, unless expressly authorized. TECNOLOGIC S.p.A. reserves the right to make any formal or functional changes at any moment and without any notice.

INDEX

INSTRUMENT ORDERING CODE7.6

MEASUREMENT RANGE TABL

E7.5

FUNCTIONAL DATA7.4

MECHANICAL DIMENSIONS, PANEL CUT-OUT AND MOUNTING

7.3

MECHANICAL DAT

A7.2

ELECTRICAL DATA7.1

TECHNICAL DATA7

GUARANTEE AND REPAIR

S6.3

CLEANING6.2

ERROR SIGNALLING6.1

PROBLEMS , MAINTENANCE AND GUARANTE

PROGRAMMABLE PARAMETERS TABLE5

PARAMETERS CONFIGURATION BY KEY014.13

FUNCTION OF KEY “U”4.12

LOOP BREAK ALARM FUNCTION4.11

ALARMS OUTPUTS FUNCTIONS4.10

SOFT-START FUNCTION4.9

REACHING OF SET POINT AT CONTROLLED SPEE

D AND AUTOMATIC COMMUTATION BETWEEN TWO SET POINTS

4.8

AUTO-TUNING AND SELF-TUNING FUNCTIONS4.7

DOUBLE ACTION PID CONTROL4.6

SINGLE ACTION PID CONTROL4.5

NEUTRAL ZONE ON/OFF CONTRO

L4.4

ON/OFF CONTROL4.3

OUTPUTS CONFIGURATION4.2

MEASURING AND VISUALIZATION4.1

FUNCTIONS4

ELECTRICAL WIRING DIAGRAM3.4

ELECTRICAL CONNECTIONS3.3

MECHANICAL MOUNTIN

G3.2

PERMITTED USE3.1

INFORMATION ON INSTALLATION AND USE 3

ACTIVE SET POINT SELECTION2.5

CONTROL STATES2.4

PARAMETER PROGRAMMING LEVEL

S2.3

SELECTION OF CONTROL STATE AND PARAMETE

R PROGRAMMING

2.2

FAST PROGRAMMING OF SET POINT 2.1

PROGRAMMING2

FRONT PANEL DESCRIPTION1.2

GENERAL DESCRIPTION1.1

INSTRUMENT DESCRIPTION1

1 - INSTRUMENT DESCRIPTION

1.1 - GENERAL DESCRIPTION

TLK 38 is a “single loop” digital microprocessor-based controller, with ON/OFF, Neutral Zone ON/OFF, PID single action, PID dual action (direct and reverse) control and with AUTO-TUNING FAST function, SELF-TUNING function and automatic calculation of the FUZZY OVERSHOOT CONTROL parameter for PID control. The PID control has a particular algorithm with TWO DEGREES OF FREEDOM that optimises the instrument’s features independently in the event of process disturbance and Set Point variations. The process value is visualized on 4 red displays, while the output status is indicated by 2 LED displays. The instrument is equipped with a 3 LED programmable shift indexes. The instrument provides for the storage of 4 Set Points and can have up to 2 outputs: relay type or can drive solid state relays type (SSR). Depending on the model required the input accept: C: Thermocouples temperature probes (J,K,S and TECNOLOGIC IRS Infrared sensors), mV signals (0..50/60 mV, 12..60 mV), Thermoresistances PT100. E : Thermocouples temperature probes (J,K,S and TECNOLOGIC IRS Infrared sensors), mV signals (0..50/60 mV, 12..60 mV), Thermistors PTC and NTC.

I : normalized analogue signals 0/4..20 mA V : normalized analogue signals 0..1 V, 0/1..5 V, 0/2..10 V

Other important available functions are: Loop-Break Alarm function, reaching of the Set Point at controlled speed, ramp and dwell

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function, Soft-Start function, protection compressor function for neutral zone control, parameters protection on different levels.

1.2

FRONT PANEL DESCRIPTION

OUT1

TLK 38

AT ST

-=+OUT2

1 - Key P : This is used to access the programming parameters and to confirm selection. 2 - Key DOWN : This is used to decrease the values to be set and to select the parameters. If the key is held down, the user returns to the previous programming level until he exits the programming mode. 3 - Key UP : This is used to increase the values to be set and to select the parameters. If the key is held down, the user returns to the previous programming level until he exits the programming mode. Outside the programming mode it permits visualisation of the output control power. 4 - Key U : This is a key with a function programmable by par. “USrb”. It can be set to : Activate Auto-tuning and Self-tuning functions, swap the instrument to manual control, silence the alarm, change the active Set Point, deactivate control (see par. 4.12) and modify the visibility of the parameters in “ConF” menu (see par.

2.3).

5 - Led OUT1 : indicates the state of output OUT1 6 - Led OUT2 : indicates the state of output OUT2 7 - Led SET :It indicates access to the programming mode and

parameter programming level. 8 - Led AT/ST : indicates that the Self-tuning function is activated (light on) or that Auto-tuning (flashing ) is in progress. 9 - Led – Shift index: indicates that the process value is lower than the one programmed on par. “AdE”. 10 - Led = Shift index: indicates that the process value is within the range [SP+AdE ... SP-AdE] 11 - Led + Shift index: indicates that the process value is higher than the one set on par. “AdE”.

2 - PROGRAMMING

2 .1 - FAST PROGRAMMING OF THE SET POINT

This procedure permits rapid programming of the active Set Point and possibly the alarm thresholds (see par 2.3) Push key “P”, then release it and the display will visualise “SP n” (where n is the number of the Set Point active at that moment) alternatively to the programmed value. To modify the value, press “UP” key to increase it or the “DOWN” key to decrease it. These keys change the value one digit at a time but if they are pressed for more than one second, the value increases or decreases rapidly and, after two seconds in the same condition, the changing speed increases in order to allow the desired value to be reached rapidly. Once the desired value has been reached, by pushing key P it is possible to exit by the fast programming mode or it is possible to visualise the alarm thresholds (see par. 2.3). To exit the fast Set programming it is necessary to push key P, after the visualisation of the last Set Point, or alternatively, if no key is pressed for approx. 15 seconds, the display will return to normal functioning automatically.

2.2 - SELECTION OF THE CONTROL STATE AND PARAMETER PROGRAMMING

By pushing key "P" and holding it down for approx. 2 sec. it is possible to enter into the main selection menu. Using the "UP" or DOWN” keys, it is then possible to roll over the selections:

to enter into the operating parameters menu

"OPEr"

to swap the regulator to the manual control state and therefore to program the % control value using the “UP” and “DOWN” keys

"OPLO"

to activate the Auto-tuning or Self-tuning function

"tunE"

to swap the regulator into the automatic control state

"rEG"

to swap the regulator into the OFF state

"OFF"

to enter into the configuration parameters menu

"ConF"

Once the desired item has been selected, push key “P” to confirm. Selecting "OPEr" and "ConF" gives the possibility of accessing other menus containing additional parameters and more precisely : "OPEr" - Operating parameters Menu: this normally contains the Set Point parameters but it can contain all the desired parameters (see par. 2.3). "ConF" - Configuration parameters Menu: this contains all the operating parameters and the functioning configuration parameters (alarm configuration, control, input, etc.)

SELFTUNING

AUTOTUNING

AT ST

2 sec.

Hold for

"OF F "

"rEG "

"OP L O "

To enter the menu “ConF” select the option “ConF”, press the key “P” and the display will show “0”. At this request, enter, using keys “UP” and “DOWN”, the number reported on the last page of this manual and push key “P”. If an incorrect password is entered, the instrument exit from programming mode. If the password is correct, the display will visualise the code identifying the first group of parameters (“

]

SP “) and with keys “UP”

and “DOWN” it will be possible to select the desired group of parameters. Once the desired group of parameters has been selected, the code identifying the first parameter of the selected group will be visualised by pushing the “P” key. Again using the “UP” and “DOWN” keys, it is possible to select the desired parameter and, if the key “P” is pressed, the display will alternatively show the parameter’s code and its programming value, which can be modified by using the “UP” or “DOWN” keys. Once the desired value has been programmed, push key “P” once more: the new value will be memorised and the display will show only the code of the selected parameter. By using the “UP” or “DOWN” keys, it is then possible to select a new parameter (if present) and modify it as described above. To select another group of parameters, keep the “UP” or “DOWN” key pressed for approx. 2 sec., afterwards the display will return to visualise the code of the group of parameters. Release the key and by using the “UP” and “DOWN” keys, it will be possible to select a new group. To exit the programming mode, no key should be pressed for approx. 20 seconds, or keep the “UP” or “DOWN” pressed until exit from the programming mode is obtained.

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The programming and exit modes for the “OPEr” menu are the same as those described for menu “ConF” with the difference that to access the menù "OPEr" the Password is not required.

Longer

Hold

2 sec.

Hold f or

2 sec.

Hold for

ATTENTION: The instrument is programmed in factory with all the parameters, to exception of the Set Point "SP1" (and 2,3,4), programmable in the menù "ConF" to the purpose to prevent wrong accidental programming from non experienced consumers.

2.3 - PARAMETERS PROGRAMMING LEVELS

The menu “OPEr” normally contains the parameters used to program the Set Point; however it is possible to make all desired parameters appear or disappear on this level, by following this procedure: Enter the menu “ConF” and select the parameter to be made programmable or not programmable in the menu “OPEr”. Once the param eter has been selected, if the LED SET i s switched off, this means that the parameter is programmable only in the menu “ConF”, if instead the LED is on, this means that the parameter is also programmable in the menu “OPEr”. To modify the visibility of the parameter, push key “U” : the LED SET will change its state indicating the parameter accessibility level (on = menu ”OPEr” and “ConF”; off = menu “ConF” only). The active Set Point and the alarm thresholds will only be visible on the Set Point fast programming level (described in par. 2.1) if the relative parameters are programmed to be visible (i.e. if they are present in the menu “OPEr”). The possible modification of these Sets, with the procedure described in par. 2.1, is instead subordinate to what is programmed in par. “Edit” (contained in the group “

]

PAn “).

This parameter can be programmed as : =SE : The active Set Point can be modified while the alarm thresholds cannot be modified. =AE : The active Set Point cannot be modified while the alarm thresholds can be modified =SAE : Both the active Set Point and the alarm thresholds can be modified =SAnE : Both the active Set Point and the alarm thresholds cannot be modified

2.4 - CONTROL STATES

The controller can act in 3 different ways : automatic control (rEG), control off (OFF) and manual control (OPLO). The instrument is able to pass from one state to the other :

- by selecting the desired state from the main selection menu suing the keyboard.

- By using the key “U” on the keyboard; suitably programming par. “USrb” (“USrb” = tunE; “USrb” = OPLO; “USrb” = OFF) it is possible to pass from “rEG” state to the state programmed on the parameter and vice versa.

- Automatically (the instrument swaps into "rEG" state at the and of the auto-tuning execution) When switched on, the instrument automatically reassumes the state it was in when it was last switched off. AUTOMATIC CONTROL (rEG) – Automatic control is the normal functioning state of the controller. During automatic control it is possible to visualize the control power on the display by pushing key “UP”. The range of the power values goes from H100 (100% of the output power with reverse action) to C100 (100% of the output power with direct action).

CONTROL OFF (OFF) – The instrument can be swapped into the “OFF” state, i.e. the control and the relative outputs are deactivated. The alarm outputs are instead working normally. BUMPLESS MANUAL CONTROL (OPLO) – By means of this option it is possible to manually program the power percentage given as output by the controller by deactivating automatic control. When the instrument is swapped to manual control, the power percentage is the same as the last one supplied and can be modified using the “UP” and “DOWN” keys. As in the case of automatic control, the programmable values range from H100 (+100%) to C100 (-100%). To return to automatic control, select "rEG" in the selection menu.

2.5 - ACTIVE SET POINT SELECTION

This instrument permits pre-programming of up to 4 different Set points (“SP1”, “SP2”, “SP3”, “SP4”) and then selection of which one must be active. The maximum number of Set points is determined by the par. "nSP" located in the group of parameters “

]

SP “.

The active Set point can be selected :

- by parameter "SPAt" in the group of parameters “

]

SP “.

- by key “U” if par. "USrb" = CHSP

- Automatically between SP1 and SP2 if a time “dur.t” (see par. 4.8) has been programmed. Set Points “SP1”, “SP2”, “SP3”, “SP4” will be visible depending on the maximum number of Set Points selected on par. “nSP” and they can be programmed with a value that is between the value programmed on par. “SPLL” and the one programmed on par. “SPHL”.

Note : in all the following examples the Set point is indicated as "SP", how ever the instrument will act according to the Set point selected as active.

3 - INFORMATION ON INSTALLATION AND US

3.1 - PERMITTED USE

The instrument has been projected and manufactured as a measuring and control device to be used according to EN61010-1 for the altitudes operation until 2000 ms.The use of the instrument

for applications not expressly permitted by the above mentioned rule must adopt all the necessary protective measures. The instrument CANNOT be used in dangerous environments (flammable or explosive) without adequate protection. The installer must ensure that EMC rules are respected, also after the instrument installation, if necessary using proper filters. Whenever a failure or a malfunction of the device may cause dangerous situations for persons, thing or animals, please remember that the plant has to be equipped with additional devices which will guarantee safety.

3.2 - MECHANICAL MOUNTING

The instrument, in case 33 x 75 mm, is designed for flush-in panel mounting. Make a hole 29 x 71 mm and insert the instrument, fixing it with the provided special bracket. We recommend that the gasket is mounted in order to obtain the front protection degree as declared. Avoid placing the instrument in environments with very high humidity levels or dirt that may create condensation or introduction of conductive substances into the instrument. Ensure adequate ventilation to the instrument and avoid installation in containers that house devices which may overheat or which may cause the instrument to function at a higher temperature than the one permitted and declared. Connect the instrument as far away as possible from sources of electromagnetic disturbances such as motors, power relays, relays, solenoid valves, etc.

3.3 - ELECTRICAL CONNECTION

Carry out the electrical wiring by connecting only one wire to each terminal, according to the following diagram, checking that the power supply is the same as that indicated on the instrument and that the load current absorption is no higher than the maximum electricity current permitted. As the instrument is built-in equipment

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with permanent connection inside housing, it is not equipped with either switches or internal devices to protect against overload of current: the installation will include an overload protection and a two-phase circuit-breaker, placed as near as possible to the instrument, and located in a position that can easily be reached by the user and marked as instrument disconnecting device which interrupts the power supply to the equipment. It is also recommended that the supply of all the electrical circuits connected to the instrument must be protect properly, using devices (ex. fuses) proportionate to the circulating currents. It is strongly recommended that cables with proper insulation, according to the working voltages and temperatures, be used. Furthermore, the input cable of the probe has to be kept separate from line voltage wiring. If the input cable of the probe is screened, it has to be connected to the ground with only one side. Whether the instrument is 12 V version it’s recommended to use an external transformer TCTR, or with equivalent features, and to use only one transformer for each instrument because there is no insulation between supply and input. We recommend that a check should be made that the parameters are those desired and that the application functions correctly before connecting the outputs to the actuators so as to avoid malfunctioning that may cause irregularities in the plant that could cause damage to people, things or animals.

Tecnologic S.p.A. and its legal representatives do not assume any responsibility for any damage to people, things or animals deriving from violation, wrong or improper use or in any case not in compliance with the instrument’s features.

3.4 - ELECTRICAL WIRING DIAGRAM

TLK 38

INP UT

SUPPLY

0...1 V

ACTIVE

0/4..20 mA

0..50/60 mV

0/1..5 V

ACTIVE

PASSIVE

(2 wires)

4..20 mA

OUT 10 VDC

Max 20 mA

gen.

ext.

RELAY

1 23

SSR

SSR : 8 m A / 8 VD C

RELAYS: 8A-AC1 (3A-AC3) 250 VAC

OUT 1

NC4NO

5 6 98 10

PTC

NTC

Pt100

11+12

NONCC

OUT 2

4 - FUNCTIONS

4.1 - MEASURING AND VISUALIZATION

All the parameters referring measurements are contained in the group “

]

InP”.

Depending on the model required the input accept: C: Thermocouples temperature probes (J,K,S and TECNOLOGIC IRS Infrared sensors), mV signals (0..50/60 mV, 12..60 mV), Thermoresistances PT100. E : Thermocouples temperature probes (J,K,S and TECNOLOGIC IRS Infrared sensors), mV signals (0..50/60 mV, 12..60 mV), Thermistors PTC and NTC.

I : normalized analogue signals 0/4..20 mA V : normalized analogue signals 0..1 V, 0/1..5 V, 0/2..10 V

Depending on the model, using par. “SEnS”, it’s possible to select the type of input probe, which can be :

- for thermocouples J (J), K (CrAL), S (S) or for infrared sensors serie TECNOLOGIC IRTC1 with linearization J (Ir.J) or K (Ir.CA)

- for thermoresistances Pt100 IEC (Pt1) or thermistors PTC KTY81-121 (Ptc) or NTC 103AT-2 (ntc)

- for normalised signals in current 0..20 mA (0.20) or 4..20 mA (4.20)

- for normalised signals in tension 0..1 V (0.1), 0..5 V (0.5), 1..5 V (1.5), 0..10 V (0.10) or 2..10 V (2.10).

- for normalised signals in tension 0..50 mV (0.50), 0..60 mV (0.60),

12..60 mV (12.60). We recommend to switch on and off the instrument when these parameters are modified, in order to obtain a correct measuring. For the instruments with input for temperature probes (tc, rtd) it’s possible to select, through par. “Unit”, the unit of measurement (°C, °F) and, through par. “dP” (Pt100, PTC and NTC only) the desired resolution (0=1°; 1=0,1°). Instead, with regards to the instruments with normalised analogue input signals, it is first necessary to program the desired resolution on par. “dP” (0=1; 1=0,1; 2=0,01; 3=0,001) and then, on par. "SSC", the value that the instrument must visualise at the beginning of the scale (0/4 mA, 0/12 mV, 0/1 V o 0/2 V) and, on par. "FSC", the value that the instrum ent must visualise at the end of the scale (20 mA, 50 mV, 60 mV, 5 V or 10 V). The instrument allows for measuring calibration, which may be used to recalibrate the instrument according to application needs, by using par. “OFSt” and “rot”. Programming par. “rot”=1,000, in par. “OFSt” it is possible to set a positive or negative offset that is simply added to the value read by the probe before visualisation, which remains constant for all the measurements. If instead, it is desired that the offset set should not be constant for all the measurements, it is possible to operate the calibration on any two points. In this case, in order to decide which values to program on par. “OFSt” and “rot”, the following formulae must be applied :

“rot” = (D2-D1) / (M2-M1) “OFSt” = D2 - (“rot” x M2)

where: M1 =measured value 1 D1 = visualisation value when the instrument measures M1 M2 =measured value 2 D2 = visualisation value when the instrument measures M2 It then follows that the instrument will visualise :

DV = MV x “rot” + “OFSt”

where: DV = visualised value MV= measured value Example 1:

It is desired that the instrument visualises the value effectively measured at 20° but that, at 200°, it visualises a value lower than 10° (190°). Therefore : M1=20 ; D1=20 ; M2=200 ; D2=190 “rot” = (190 - 20) / (200 - 20) = 0,944 “OFSt” = 190 - (0,944 x 200) = 1,2 Example 2:

It is desired that the instrument visualises 10° whilst the value actually measured is 0°, but, at 500° it visualises a 50° higher value (550°). Therefore : M1=0 ; D1=10 ; M2=500 ; D2=550 “rot” = (550 - 10) / (500 - 0) = 1,08 “OFSt” = 550 - (1,08 x 500) = 10

By using par. “FiL” it is possible to program time constant of the software filter for the input value measured, in order to reduce noise sensitivity (increasing the time of reading). In case of measurement error, the instrument supplies the power as programmed on par. “OPE”. This power will be calculated according to cycle time programmed for the PID controller, while for the ON/OFF controllers the cycle time is automatically considered to be equal to 20 sec. (e.g. In the event of probe error with ON/OFF control and “OPE”=50, the control output will be activated for 10 sec., then it will be deactivated for 10 sec. and so on until the measurement error remains.). By using par. “InE” it is also possible to decide the conditions of the input error, allowing the instrument to give the power programmed on par. “OPE” as output. The possibilities of par. “InE” are : = Or : the condition occurs in case of over-range or probe breakage = Ur : the condition occurs in case of under-range or probe breakage

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= OUr : the condition occurs in case of over-range or under-range or probe breakage Using par. “diSP”, located in the group “

]

PAn”, it is possible to set

normal visualization of the display which can be the process variable (dEF), the control power (Pou), the active Set Point (SP.F) the Set Point operating when there are active ramps (SP.o) or alarm threshold AL1 or AL2 (AL1, AL2). Again in the group “

]

PAn” the par. “AdE” is present that defines

the 3 led shift index functioning. The lighting up of the green led = indicates that the process value is within the range [SP+AdE ... SP-AdE], the lighting up of the led – indicates that the process value is lower than [SP-AdE] and the lighting up of the led + indicates that the process value is higher than [SP+AdE].

4.2 - OUTPUTS CONFIGURATION

The instrument’s outputs can be programmed by entering the group of parameters “

]

Out, where the relati ve parameters “O1F” and

“O2F” (depending on the number of outputs available on the

instrument) are located. The outputs can be set for the following functions :

- Main control output (1.rEG)

- Secondary control output (2.rEG)

- Alarm output normally open (ALno)

- Alarm output normally closed (ALnc)

- Alarm output normally closed with led reverse indication (ALni)

- Output deactivated (OFF) The coupling outputs number outputs – number alarms can be made in the group referring to the alarm to the alarm (“

]

AL1”,

“

]

AL2”).

4.3 - ON/OFF CONTROL (1.rEG)

All the parameters referring to the ON/OFF control are contained in the group “

]

rEG”.

This type of control can be obtained by programming par."Cont" = On.FS or = On.FA and works on the output programmed as 1.rEG, depending on the measure, on the active Set Point “SP”, on the functioning mode "Func” and on the hysteresis "HSEt". The instrument carries out an ON/OFF control with symmetric hysteresis if “Cont" = On.FS or with asymmetrical hysteresis if “Cont” = On.FA.

OUT

off

HEAt - On.FA

OUT

time

HSEt

time

CooL - O n.FA

ON ON ON ON ON

off off off

CooL - On.FSHEAt - On.FS

ONON

OUT

off

HSEt

time

OUT

off off

time

HSEt

1.rEG 1.rEG

1.rEG1.rEG

The control works in the following way : in the case of reverse action, or heating (“FunC”=HEAt), it deactivates the output, when the process value reaches [SP + HSEt] in case of symmetrical hysteresis, or [SP] in case of asymmetrical hysteresis and is then activated again when the process value goes below value [SP HSEt]. Vice versa, in case of direct action or cooling ("Func”=CooL), it deactivates the output, when the process value reaches [SP HSEt] in case of symmetrical hysteresis, or [SP] in case of asymmetrical hysteresis and is activated again when the process value goes above value [SP + HSEt].

4.4 - NEUTRAL ZONE ON/OFF CONTROL (1.rEG - 2.rEG)

All the parameters referring to Neutral Zone ON/OFF control are contained in the group “

]

rEG”.

This type of control can be obtained when 2 outputs are programmed respectively as 1.rEG and 2.rEG and the par. “Cont” = nr . The Neutral Zone control is used to control plants in which there is an element which causes a positive increase (ex. Heater, humidifier, etc.) and an element which causes a negative increase (ex. Cooler, de-humidifier, etc). The control functions works on the programmed outputs depending on the measurement, on the active Set Point “SP” and on the hysteresis "HSEt". The control works in the following way : it deactivates the outputs when the process value reaches the Set Point and it activates the output 1.rEG when the process value goes below value [SP HSEt], or it activates the output 2.rEG when the process value goes above [SP + HSEt]. Consequently, the element causing a positive increase has to be connected to the output programmed as 1.rEG while the element causing a negative increase has to be connected to the output programmed as 2.rEG.

OUT 2.rEG

(cooling)

OUT 1.rEG

(heating)

off

time

HSEt

If 2.rEG output is used to control compressor is possible to use the “Compressor Protection” function that has the meaning to avoid compressor “short cycles”. This function allows a control by time on the output 2.rEG activation, independently by the temperature control request. The protection is a “delayed after deactivation” type. This protection permits to avoid the output activation for a time programmable on par. “CPdt” (expressed in sec.); the output activation will occurs only after the elapsing of time “CPdt”. The time programmed on parameter “CPdt” is counted starting from the last output deactivation. Obviously, whether during the time delay caused by the compressor protection function, the regulator request should stop, the output activation foreseen after time “CPdt” would be erased. The function is not active programming “CPdt” =OFF. The led relative to 2.rEG output blinks during the phases of output activation delay, caused by “Compressor Protection” function.

4.5 - SINGLE ACTION PID CONTROL (1.rEG)

All the parameters referring to PID control are contained in the group “

]

rEG”.

The Single Action PID control can be obtained by programming par."Cont" = Pid and works on the output 1.rEG depending on the active Set Point “SP”, on the functioning mode "Func” and on the instrument’s PID algorithm with two degree of freedom.

tc r1

1.rEG (H E at)

tcr1

off

tcr1tcr1tcr1 tcr1

off off

offoff

0N 0N

tcr1

off

0N 0N

tim e

OUT

In order to obtain good stability of the process variable, in the event of fast processes, the cycle time “tcr1” has to have a low value with a very frequent intervention of the control output.

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In this case use of a solid state relay (SSR) is recommended for driving the actuator. The Single Action PID control algorithm foresees the setting of the following parameters :

"Pb" – Proportional Band "tcr1" – Cycle time of the output 1.rEG "Int" – Integral Time "rS" – Manual Reset (if “Int =0 only) "dEr" – Derivative Time “FuOC” - Fuzzy Overshoot Control

This last parameter allows the variable overshoots at the start up of the process or at the changing of the Set Point to be avoided. Please remember that a low value on this parameter reduces the overshoot while a high value increase it.

tim e

1: Value “FuOC” OK 2: Value “FuOC” too high 3: Value “FuOC” too low

4.6 - DOUBLE ACTION PID CONTROL (1.rEG - 2.rEG)

All the parameters referring to PID control are contained in the group “

]

rEG”.

The Double Action PID control is used to control plants where there is an element which causes a positive increase (ex. Heating) and an element which causes a negative increase (ex. Cooling). This type of control can be obtained when 2 outputs are programmed respectively as 1.rEG and 2.rEG and the par. “Cont” = Pid. The element causing a positive increase has to be connected to the output programmed as 1.rEG while the element causing a negative increase has to be connected to the output programmed as 2.rEG. The Double Action PID control works on the outputs 1.rEG and

2.rEG depending on the active Set Point “SP” and on the instrument’s PID algorithm with two degrees of freedom. In order to obtain good stability of the process variable, in case of fast processes, the cycle times “tcr1” and “tcr2” have to have a low value with a very frequent intervention of the control outputs. In this case use of solid state relays (SSR) to drive the actuators is recommended. The Double Action PID control algorithm needs the programming of the following parameters :

"Pb" - Proportional Band "tcr1" - Cycle time of the output 1.rEG “tcr 2” - Cycle time of the output 2.rEG "Int" - Integral Time "rS" - Manual Reset (if “Int =0 only) "dEr" - Derivative Time “FuOC” - Fuzzy Overshoot Control "Prat" - Power Ratio or relation between power of the element

controlled by output 2.rEG and power of the element controlled by output 1.rEG. If par. “Prat” = 0, the output 2.rEG is disabled and the control behaves exactly as a single action PID controller, through output

1.rEG.

4.7 - AUTOTUNING AND SELFTUNING FUNCTIONS All the parameters referring to the AUTO-TUNING and SELF-TUNING functions are contained in the group “

]

rEG”.

The AUTO-TUNING and SELF-TUNING functions permit the automatic tuning of the PID controller. The AUTO-TUNING function permits the calculation of thePID parameters by means of a FAST type tuning cycle and, at the end of this operation, the parameters are stored into the instrument’s memory and remain constant during control.

The SELF-TUNING function (rule based "TUNE-IN") instead allows control monitoring and the continuous calculation of the parameters during control. Both functions automatically calculate the following parameters :

"Pb" - Proportional Band "tcr1" - Cycle time of the output 1rEG "Int" - Integral Time "dEr" - Derivative Time “FuOC” - Fuzzy Overshoot Control

and, for the Double Action PID control, also :

“tcr 2” - Cycle time of the output 2rEG "Prat" - Power Ratio P 2.rEG/ P 1.rEG

To activate the AUTO-TUNING function proceed as follows :

1) Program and activate the desired Set Point.

2) Program par. "Cont" =Pid.

3) Program par. "Func" according to the process to be controlled through output 1rEG.

4) Program an output as 2.rEG if the instrument controls a plant with double action

5) Program par. "Auto" as:

- "1” – if auto-tuning is desired automatically, each time the instrument is switched on, on the condition that the process value is lower (with “Func” =HEAt) than [SP- |SP/2|] or higher (with “Func” =CooL) than [SP+ |SP/2|].

- "2" – if auto-tuning is desired automatically, the next time the instrument is switched on, on the condition that the process value is lower (with “Func” =HEAt) than [SP- |SP/2|] or higher (with “Func” =CooL) than [SP+ |SP/2|], and once the tuning is finished, the par. “Auto” is automatically swapped to the OFF state

- "3" - if manual auto-tuning is desired, by selecting par. “tunE” in the main menu or by correctly programming key “U” as “USrb” = tunE. The Autotuning will start at the condition that the process value is lower (with “Func” =HEAt) than [SP- |SP/5|] or higher (with “Func” =CooL) than [SP+ |SP/5|].

- "4" - if it’s desired to activate the autotuning automatically to every change of Set Point, or at the end of programmed Soft-Start cycle. The Autotuning will start at the condition that the process value is lower (with “Func” =HEAt) than [SP- |SP/5|] or higher (with “Func” =CooL) than [SP+ |SP/5|].

6) Exit from the parameter programming.

7) Connect the instrument to the controlled plant.

8) Activate the Auto-tuning by switch off and turn on the instrument if “Auto”=1 or 2 , or by selecting par. “tunE” in the main menu (or by correctly programming key “U” ). At this point the Auto-tuning function is activated and is indicated by the flashing led AT/ST. The regulator carries out several operations on the connected plant in order to calculate the most suitable PID parameters. If, at the Auto-tuning start, the condition for the lower or higher process value is not found the display will show “ErAt” and the instrument will be swapped to normal control conditions according to the previously programmed parameters. To make the error “ErAt” disappear, press key P. The Auto-tuning cycle duration has been limited to 12 hours maximum. If Auto-tuning is not completed within 12 hours, the instrument will show "noAt" on the display. In case of probe error, the instrument automatically stops the cycle in progress. The values calculated by Auto-tuning are automatically stored in the instrument’s memory at the end of the correct PID parameters tuning.

Note : The instrument is already programmed in our factory to carry out auto-tuning at first instrument switch on ("Auto" = 2).

To activate the SELF-TUNING function proceed as follows

1) Program and activate the desired Set Point.

2) Program par. "Cont" =Pid.

3) Program par. "Func" according to the process to be controlled through output 1.rEG.

4) Program an output as 2.rEG if the instrument controls a dual-action plant

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5) Program par. "SELF" = yES

6) Exit from the parameter programming.

7) Connect the instrument to the controlled plant.

8) Activate Self-tuning selecting par. “tunE” in the main menu (or by correctly programming key “U”). When the Self-tuning function is active, the led AT/ST is permanently lit up and all the PID parameters ("Pb", "Int", "dEr", etc.) are no longer visualized.

Note : It’s always preferable tuning the instrument using the Autotuning and to activate the Selftuning after because the tuning through Selftuning is more slow.

To stop the Auto-tuning cycle or deactivate the Self-tuning function select one of the control types : "rEG", "OPLO" or "OFF" from the menu “SEL”. If the instrument is switched off during Auto-tuning or with the Self-tuning function activated, these functions will remain activated the next time it is switched on.

4.8 - REACHING OF THE SET POINT AT CONTROLLED SPEED AND AUTOMATIC SWITCHING BETWEEN TWO SET POINTS (RAMPS AND DWELL TIME)

All the parameters referring to the ramps functioning are contained in the group “

]

rEG”.

It is possible to reach the set point in a predetermined time (in any case longer than the time the plant would naturally need). This could be useful in those processes (heating or chemical treatments, etc.) where the set point has to be reached gradually, in a predetermined time. Once the instrument has reached the first Set Point (SP1) it is possible to have automatic switching to the second Set Point (SP2) after a set time, thus obtaining a simple automatic process cycle. These functions are available for all the programmable controls (PID single and double action, ON/OFF and Neutral Zone ON/OFF). The function is determined by the following parameters :

"SLor" - Gradient of first ramp expressed in unit/minute "SLoF" - Gradient of second ramp expressed in unit/minute. "dur.t" - Dwell time of Set Point “SP1” before automatic switching

to Set Point “SP2” (expressed in hrs. and min.). The functions are deactivated when the relative parameters are = InF. If is desired only one ramp (ex. to reach “SP1”) it is enough to program on the par. "SLor" the desired value. The ramp "SLor" it will always active at power on and when the Active Set Point value is changed.

SP1

[Unit]

SP1 Value

change

SP1

tim e [m in .]

SLor

If it is desired an automatic cycle from the power on instead it is necessary to program the par. "nSP" = 2, to program the two Set Point values "SP1" and "SP2" and naturally to program the par. "SLor", "dur.t" and "SLoF" with the desired values. In this case at the end of the cycle all the ramps won't be more active.

[U nit]

SP1

AUTO

change

Set

dur.t

SP2

tim e [m in.]

SLor

SLoF

Examples with starts from values lower than SP and with decreasing of SP. Note: In case of PID control, if Auto-tuning is desired whilst the ramp funct ion is active, t his will not be carried out until t he tuning

cycle has been completed. It is therefore recommended tha

Auto-tuning be started avoiding activating the ramp function and, once the tuning is finished, deactivate Auto-tuning (“Auto” = OFF), program the desired ramp and, if it automatic tuning is desired, enable the Self-tuning function.

4.9 - SOFT-START FUNCTION

All the parameters referring to the Soft -Start functioning are contained in the group “

]

rEG”.

The Soft-Start function only works through PID control and allows the limitation of control power when the instrument is switched on, for a programmable period of time. This is useful when the actuator, driven by the instrument, may be damaged excess power supplied when the application is not yet in the normal rating. (ex. for certain heating elements). The function depends on the following parameters :

“St.P” - Soft-Start power “SSt” - Soft-Start time (expressed in hh.mm) “HSEt” - End Soft Start cycle threshold

If both parameters are programmed with values other than OFF, when switched on the instrument gives an output power as programmed on par. “St.P” for the time programmed on par. “SSt” or when is reached the absolute value programmed at par. “HSEt”. Practically, the instrument works in manual condition and switches to automatic control at the elapsing of time “SSt” or when is reached the absolute value programmed at par. “HSEt”. To disable the Soft-Start function simply program par. “SSt” = OFF. Whenever, a measurement errors occurs during the Soft-Start execution, the function is interrupted and the instrument gives an output power as programmed on par. “OPE”. If the measurement is restored, the Soft-Start is still deactivated. If it’s desired to activate the Autotuning with Soft-Start set par. “Auto”=4. The Autotuning will start automatically at the end of programmed Soft-Start cycle at the condition that the process value is lower (with “Func” =HEAt) than [SP- |SP/5|] or higher (with “Func” =CooL) than [SP+ |SP/5|].

4.10 - ALARMS OUTPUTS FUNCTIONS (AL1, AL2)

The alarms (AL1, AL2) are depending on the process value and before to set his functioning it’s necessary to establish to which output the alarm has to correspond to. First of all it’s necessary to configure, in the parameters group

“

]

Out”, the parameters relative to the outputs required as alarm

(“O1F” , “O2F”) programming the parameter relative to the desired output as follows : = ALno if the alarm output has to be ON when the alarm is active, while it’s OFF when the alarm is not active = ALnc if the alarm output has to be ON when the alarm is not active, while it’s OFF when the alarm is active = ALni if the alarm output has to be ON when the alarm is not active, while it is OFF when the alarm is active but with reverse led indication (led ON= alarm OFF).

Note:

In all the examples that follow is made reference to the alarm

AL1. Naturally the operation of the other alarms results analogous.

Have now access at the group “]AL1”, and program on par. “OAL1” , to which output the alarm signal has to be sent.

The alarm functioning is instead defined by parameters :

"AL1t " - ALARM TYPE "Ab1" - ALARM CONFIGURATION “AL1” - ALARM THRESHOLD “AL1L” - LOW ALARM THRESHOLD (for band alarm) OR

MINIMUM SET OF AL1 ALARM THRESHOLD (for low or high alarm) “AL1H” - HIGH ALARM THRESHOLD (for band alarm) OR MAXIMUM SET OF AL1 ALARM THRESHOLD (for low or high alarm)

“HAL1” - ALARM HYSTERESIS “AL1d” - ALARM ACTIVATION DELAY (in sec.) "AL1i" - ALARM BEHAVIOUR IN THE EVENT OF

MEASUREMENT ERROR

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"AL1t" – ALARM TYPE : the alarm output can behave in six different ways. LoAb = ABSOLUTE LOW ALARM: The alarm is activated when the process value goes below the alarm threshold set on parameter "AL1” and will be deactivated when it goes above the value [AL1+HAL1]. With this mode is possible to program the minimum and the maximum set of “AL1” by “AL1L” and “AL1H” parameters. HiAb = ABSOLUTE HIGH ALARM: The alarm is activated when the process value goes higher than the alarm threshold set on parameter "AL1" and will be deactivated when it goes below the value [AL1 - HAL1]. With this mode is possible to program the minimum and the maximum set of “AL1” by “AL1L” and “AL1H” parameters.

LoAb

off

AL1

HiAb

HAL1

time

off

AL1

time

HAL1

off off

OUT

off off

OUT

AL1

LodE = DEVIATION LOW ALARM: The alarm is activated when the process value goes below the value [SP + AL1] and will be deactivated when it goes above the value [SP + AL1 + HAL1]. With this mode is possible to program the minimum and the maximum set of “AL1” by “AL1L” and “AL1H” parameters. HidE = DEVIATION HIGH ALARM: The alarm is activated when the process value goes above the value [SP + AL1] and will be deactivated when it goes below the value [SP + AL1 - HAL1]. With this mode is possible to program the minimum and the maximum set of “AL1” by “AL1L” and “AL1H” parameters.

LodE

off

-AL1 HAL1

time

of f

AL1

Hi dE

time

HAL1

off of f

off off

OUT

AL1

OUT

AL1

LHAb = ABSOLUTE BAND ALARM: The alarm is activated when the process value goes under the alarm threshold set on parameter "AL1L" or goes higher than the alarm threshold set on parameter "AL1H" and will be deactivated when it goes below the value [AL1H

- HAL1] or when it goes above the value [AL1L + HAL1]. LHdE = DEVIATION BAND ALARM: The alarm is activated when the process value goes below the value [SP + AL1L] or goes above than the value [SP + AL1H] and will be deactivated when it goes below the value [SP + AL1H - HAL1] or when it goes above the value [SP + AL1L + HAL1].

LHAb

off

AL1H

AL1L

time

off

HAL1

- AL1L

AL1H

time

LHdE

HAL1

off of f

OUT

AL1

OUT

AL1

"Ab1" - ALARM CONFIGURATION: This parameter can assume a value between 0 and 31.

The number to be set, which will correspond to the function desired, is obtained by adding the values reported in the following descriptions : ALARM BEHAVIOUR AT SWITCH ON

: the alarm output may behave in two different ways, depending on the value added to par. “Ab1”. +0 = NORMAL BEHAVIOUR: The alarm is always activated when there are alarm conditions. +1 = ALARM NOT ACTIVATED AT SWITCH ON: If, when switched on, the instrument is in alarm condition, the alarm is not activated. It will be activated only when the process value is in non-alarm conditions and then back in alarm conditions.

tim e

AL1

off off

offoff

Ab1

exemple with absolute low alarm

ALARM DELAY

: the alarm output may behave in two different ways depending on the value added to par. “Ab1”. +0 = ALARM NOT DELAYED: The alarm is immediately activated when the alarm condition occurs. +2 = ALARM DELAYED: When the alarm condition occurs, delay counting begins, as programmed on par. “AL1d” (expressed in sec.) and the alarm will be activated only after the elapsing of that time. ALARM LATCH

: : the alarm output may behave in two different ways depending on the value added to par. “Ab1”. + 0 = ALARM NOT LATCHED: The alarm remains active in alarm conditions only. + 4 = ALARM LATCHED: The alarm is active in alarm conditions and remains active even when these conditions no longer exist, until the correctly programmed key “U”, (“USrb”=Aac) has been pushed.

AL1

tim e

Ab1

off

exemple with absolute high alarm

ALARM

AKNOWLEDGEMENT: : the alarm output may behave in two different ways depending on the value added to par. “Ab1”. + 0 = ALARM NOT AKNOWLEDGED: The alarm always remains active in alarm conditions. + 8 = ALARM AKNOWLEDGED: The alarm is active in alarm conditions and can be deactivated by key “U” if properly programmed (“USrb”=ASi), and also if alarm conditions still exist. ALARM BEHAVIOUR AT SET POINT CHANGE (DEVIATION ALARMS ONLY): the alarm output may behave in two different ways, depending on the value added to par. “Ab1”. +0 = NORMAL BEHAVIOUR: The alarm is always activated when there are alarm conditions. +16 = ALARM NOT ACTIVATED AT SET POINT CHANGE: If, when Set Point change, the instrument is in alarm condition, the alarm is not activated. It will be activated only when the process value is in non-alarm conditions and then back in alarm conditions.

"AL1i"

- ALARM ACTIVATION IN CASE OF MEASUREMENT

ERROR: This allows one to establish how the alarm have behave

in the event of a measurement error (yES=alarm active; no=alarm deactivated).

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4.11 - LOOP BREAK ALARM FUNCTION

All the parameters referring to the Loop Break alarm function are contained in the group “

]

LbA”.

The Loop Break alarm is available on all the instruments, which intervenes when, for any reason (short-circuit of a thermocouple, thermocouple inversion, load interruption), the loop control is interrupted. First of all, it is necessary to establish to which output the alarm has to correspond. To do this it is necessary to set the parameter relative to the output to be used (“O1F” , “O2F”) in the group “

]

Out”, programming the

parameter as : = ALno if the alarm output has to be ON when the alarm is active while it is OFF when the alarm is not active. = ALnc if the alarm output has to be ON when the alarm is not active while it is OFF when the alarm is active. = ALni if the alarm output has to be ON when the alarm is not active, while it is OFF when the alarm is active but with reverse led indication (led ON= alarm OFF). Enter group “

]

LbA” and program which output the alarm signal

has to be addressed to on par. “OLbA”,. The Loop Break alarm is activated if the output power remains at the 100% of the value for the time programmed on par. "LbAt" (expressed in sec.). To avoid false alarms, the value of this parameter has to be set considering the time the plant takes to reach the Set point when the measured value is a long distance from it (for example at the plant start-up). On alarm intervention, the instrument visualizes the message “LbA” and behaves as in the case of a measurement error giving a power output as programmed on par. “OPE” (programmable in the group “

]

InP”).

To restore normal functioning after the alarm, select the control mode “OFF” and then re-program the automatic control (“rEG”) after checking the correct functioning of probe and actuator. To exclude the Loop Break alarm, set “OLbA” = OFF.

4.12 - FUNCTIONING OF KEY “U”

The function of key “U” can be set through par. “USrb” contained in the group ““

]

PAn”.

The parameter can be programmed as :

= noF : no function = tunE : Pushing the key for 1 sec. at least, it is possible to

activate/deactivate Auto-tuning or Self-tuning = OPLO : Pushing the key for 1 sec. at least, it is possible to swap from automatic control (rEG) to manual one (OPLO) and vice versa. = Aac : Pushing the key for 1 sec. at least, it is possible to acknowledge the alarm. (see par. 4.10) = ASi : Pushing the key for 1 sec. at least, it is possible to acknowledge an active alarm (see par. 4.10) = CHSP : Pushing the key for 1 sec. at least, it is possible to select one of the 4 pre-programmed Set Points on rotation. = OFF : Pushing the key for 1 sec. at least, it is possible to swap from automatic control (rEG) to OFF control (OFF) and vice versa.

4.13 - PARAMETERS CONFIGURATION BY “KEY01”

The instrument is equipped with a connector that allows the transfer from and toward the instrument of the functioning parameters through the device TECNOLOGIC KEY01 with 5 poles connector. This device it’s mainly useable for the serial programming of the instruments which need to have the same parameters configuration or to keep a copy of the programming of an instrument and allow its rapid retransmission. To use the device KEY01 it’s necessary that the device or instrument are being supplied. To transfer the configuration of an instrument into the device (UPLOAD) it is necessary to proceed in the following way:

1) position both dip switch of KEY 01 in the OFF mode.

2) connect the device to the instrument TLK plugging the special connector.

3) verify that the instrument or the device are supplied

4) observe the indication led on the device KEY 01: if it results green this means that a configuration is already loaded on the

device while if it results green blinking or red blinking this means that it has not been loaded any valid configuration on the device .

5) press the button placed on the device.

6) observe the indication led : after having pressed the button, the led becomes red and therefore, at the end of the data transfer, it becomes green.

7) now it is possible to disconnect the device. To transfer the configuration loaded on the device onto an instrument of the same family (DOWNLOAD), it is necessary to proceed in the following way:

1) position both dip switch of KEY 01 in the ON mode.

2) connect the device to an instrument TLK having the same features of the one from which has been downloaded the desired configuration, plugging the special connector.

3) verify that the instrument or the device are supplied

4) observe the indication led on the device KEY 01: it has to result green, because if the led results green blinking or red blinking, this means that on the device it has not been downloaded any valid configuration and therefore it’s useless to continue.

5) if the les results green, press the button placed on the device.

6) observe the indication led : after having pressed the button, the led becomes red and therefore, at the end of the data transfer, it becomes green.

7) now it is possible to disconnect the device.

Instrument supplied and device not supplied

SUPPLY

Instrument supplied from the device

SUPPLY AD APTER

12 VDC AC SUPPLY

For additional info, please have a look at the KEY01 instruction manual.

5 - PROGRAMMABLE PARAMETERS

Here following are described all the parameters available on the instrument. Some of them could be not present or because they are depending on the type of instrument or because they are automatically disabled as unnecessary.

Group “

]

SP” (parameters relative to the Set Point)

9999SPLL ÷ 9999High Set Point

SPHL

-1999-1999 ÷ SPHLLow Set Point

SPLL

0SPLL ÷ SPHLSet Point 4

SP4

0SPLL ÷ SPHLSet Point 3

SP3

0SPLL ÷ SPHLSet Point 2

SP2

0SPLL ÷ SPHLSet Point 1

SP1

11 ÷ nSPActive Set point

SPA

1 1 ÷ 4Number of the programmable Set point

nSP

NoteDef.RangeDescriptionPar.

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Group “ ] InP” (parameters relative to the measure input)

0-100 ÷ 100

Output power in case of measuring error

OPE

OUrOUr / Or / Ur“OPE” functioning in case of measuring error OUr = Over and under-range Or = Over-range only U

= Under-range onl

InE

1.0000.000 ÷ 2.000Rotation of the

measuring straight line

rot

0-1999 ÷ 9999Measuring Offset

OFSt

1.00FF÷ 20.0

Input digital filter

FiL

°C°C / °FTemperature unit of

measurement

Unit

0Pt1 / Ptc / ntc:

0 / 1

norm sig.:

0 ÷ 3

Number of decimal figures

100SSC ÷ 9999High scale limit input

with V / I signals

FSC

0-1999 ÷ FSCLow scale limit input

with V / I signals

SSC

Ptc

4.20

0.10

input C :

J / CrAL / S /

Ir.J / Ir.CA /

Pt1 / 0.50 /

0.60 / 12.60 input E :

J / CrAL / S /

Ir.J / Ir.CA /

Ptc / ntc /

0.50 / 0.60 /

12.60

input I :

0.20 / 4.20 input V :

0.1 /

0.5 / 1.5 /

0.10 / 2.10

Probe type: J= thermocoupled J CrAL= termocoupled K S= thermocoupled S Ir.J=Infrared Sen. IRS J Ir.CA= Infrared Sen. IRS K Pt1= thermores. Pt100

0.50= 0..50 mV

0.60= 0..60 mV

12.60= 12..60 mV Ptc= thermistor PTC KTY81-121 ntc= thermistor NTC 103-AT2

0.20= 0..20 mA

4.20= 4..20 mA

0.1= 0..1 V

0.5=0..5 V

1.5= 1..5 V

0.10= 0..10 V

2.10= 2..10 V

SEnS

NoteDef.RangeDescriptionPar.

Group“ ] Out” (parameters relative to the outputs)

ALno1.rEG / 2.rEG

ALno / ALnc

Lni / OFF

Functioning of output 2: see “O1F”

O2F

1.rEG1.rEG / 2.rEG

ALno / ALnc

ALni / OFF

Functioning of output 1:

1.rEG= Control output 1

2.rEG= Control output 2 ALno= Alarm Out normally opened ALnc= Alarm Out normally closed ALni= Alarm Out normally closed with reverse led func.

O1F

NoteDef.RangeDescriptionPar.

Group “ ] AL1” (parameters relative to alarm AL1)

LoAbLoAb / HiAb

LHAb / LodE

HidE / LHdE

Alarm AL1 type: LoAb= Absolute Low HiAb= Absolute High LHAb= Absolute Band LodE= Deviation Low HidE= Deviation High LHdE= Deviation Band

AL1t

Out2Out1 / Out2 /

OFF

Output where alarm

L1 is addressed

OAL1

NoteDef.RangeDescriptionPar.

nono / yESAlarm AL1 activation in

case of measuring error

AL1i

OFFOFF ÷ 9999

sec.

Activation delay of alarm AL1

L1d

1OFF ÷ 9999Alarm AL1 hysteresis

HAL1

9999AL1L ÷ 9999High threshold band alarm AL1 or Maximum set alarm AL1 for high or low alarm

L1H

-1999-1999 ÷ AL1HLow threshold band alarm AL1 or Minimum set alarm AL1 for high or low alarm

L1L

0 AL1L÷ AL1HAlarm AL1 threshold

00 ÷ 31Alarm AL1 functioning: +1 = not activated at power on +2 = delayed +4 = latch +8 = aknowledged +16 = not activated at Set change (Dev. Al.)

Group “ ] AL2” (parameters relative to alarm AL2)

nono / yESAlarm AL2 activation in

case of measuring error

AL2i

OFFOFF ÷ 9999

sec.

Activation delay of alarm

AL2d

1OFF ÷ 9999Alarm AL2 hysteresis

HAL2

9999AL2L ÷ 9999High threshold band alarm AL2 or Maximum set alarm AL2 for high or low alarm

AL2H

-1999-1999 ÷ AL2HLow threshold band alarm AL2 or Minimum set alarm AL2 for high or low alarm

AL2L

0 AL2L÷ AL2HAlarm AL2 threshold

AL2

00 ÷ 31Alarm AL2 functioning:

see “Ab1”

LoAbLoAb / HiAb

LHAb / LodE

HidE / LHdE

Alarm AL2 type: see “AL1t”

AL2t

OFFOut1 / Out2 /

OFF

Output where alarm

L2 is addressed

OAL2

NoteDef.RangeDescriptionPar.

Group “ ] LbA” (parameters relative to Loop Break Alarm)

OFFOFF ÷ 9999

sec.

Time necessary to activate alarm LbA

LbA

OFFOut1 / Out2 /

OFF

Output where alarm LbA is addressed

OLb

NoteDef.RangeDescriptionPar.

Group “ ] rEG” (parameters relative to the control)

OFFOFF÷ 9999

sec.

Compressor Protection time for 2.rEG

CPd

10 ÷ 9999Hysteresis of ON/OFF control (or end Soft Start cycle threshold)

HSEt

HEAtHEAt / CooLFunctioning mode

output 1.rEG

Func

PidPid / On.FA

On.FS / nr

Control type: Pid= PID On.FA= ON/OFF asym. On.FS= ON/OFF sym. nr= Neutral Zone ON/OFF

Cont

NoteDef.RangeDescriptionPar.

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OFFOFF/0.1÷7.59

/ InF hrs.-min.

Soft-Start time

SSt

0-100 ÷ 100 %Soft-Start power

St.P

InF0.00 ÷ 99.99

/ InF

unit / min.

Gradient of second ramp: InF= Ramp not active

SLoF

InF0.00 ÷ 99.59

/ InF

hrs.-min.

Duration time between two ramps InF= Time not active

dur.t

InF0.00 ÷ 99.99

/ InF unit/min.

Gradient of first ramp : InF= Ramp not active

SLor

0.0-100.0÷100.0

Manual reset

10.00.1 ÷ 130.0

sec.

Cycle time of 2.rEG

tcr2

1.000.01 ÷ 99.99Power ratio 2.rEg /

1.rEG

Prat

20.00.1 ÷ 130.0

sec.

Cycle time of output

1.rEG

tcr1

0.50.00 ÷ 2.00Fuzzy overshoot control

FuOc

50OFF÷ 9999

sec.

Derivative time

200OFF ÷ 9999

sec.

Integral time

Int

500 ÷ 9999Proportional band

nono / yESSelftuning enable

SELF

2OFF /

1 / 2 / 3 / 4

Autotuning Fast enable OFF = Not active 1 = Start each power on 2= Start at first power on 3= Start manually 4= Start after Soft Start or change Set Point

Auto

Group “ ] PAn” (parameters relative to the user interface)

SAESE / AE /

SAE / SAnE

Set Fast program.: SE= Active Set can be modified while the alarm thresholds cannot be modified AE= Active Set cannot be modified while the alarm thresholds can be modified SAE= Active Set and alarm thresholds can be modified SAnE= Active Set and alarm thresholds cannot be modified

Edit

2OFF...9999Shift value for the shift

index functioning

AdE

dEFdEF / Pou /

SP.F / SP.o /

AL1 / AL2

Variable visualized on the display: dEF= Process Value Pou= Control Power SP.F= Active Set SP.o = Operative Set AL1 = AL1 threshold AL2 = AL2 threshold

diSP

noFnoF / tunE /

OPLO / Aac /

ASi / CHSP /

OFF

Functioning of key “U” : noF = No Function tune= Start Autotuning or Selftuning OPLO= Manual Control (open loop) Aac= Reset Alarms latch ASi= Aknowledged Alarms OFF= Control OFF

USrb

NoteDef.RangeDescriptionPar.

6 - PROBLEMS, MAINTENANCE AND GUARANTE

6.1 - ERROR SIGNALLING

Push key “P”Possible anomaly of

the EEPROM memory

ErEP

Check the working of probe and actuator and swap the instrument to (rEG) control

Loop control interrupted (Loop break alarm)

LbA

Check the functioning of probe and actuator and try to repeat the auto-tuning.

Auto-tuning not finished within 12 hours

noAt

Push key “P” in order to make the error message disappear. Once the error has been found, try to repeat the auto-tuning.

Auto-tuning not possible because the process value is too higher or too lower

ErAt

The measured variable is over the probe’s limits (over-range)

oooo

The measured variable is under the probe’s limits (under-range)

uuuu

Verify the correct connection between probe and instrument and then verify the correct functioning of the probe

Probe interrupted

- - - -

ction ReasonErro

In error conditions, the instrument provides an output power as programmed on par. “OPE” and activates the desired alarms, if the relative parameters “ALni” have been programmed = yES.

6.2 - CLEANING

We recommend cleaning of the instrument with a slightly wet cloth using water and not abrasive cleaners or solvents which may damage the instrument.

6.3 - GUARANTEE AND REPAIRS

The instrument is under warranty against manufacturing flaws or faulty material, that are found within 12 months from delivery date. The guarantee is limited to repairs or to the replacement of the instrument. The eventual opening of the housing, the violation of the instrument or the improper use and installation of the product will bring about the immediate withdrawal of the warranty’s effects. In the event of a faulty instrument, either within the period of warranty, or further to its expiry, please contact our sales department to obtain authorisation for sending the instrument to our company. The faulty product must be shipped to TECNOLOGIC with a detailed description of the faults found, without any fees or charge for Tecnologic, except in the event of alternative agreements.

7 - TECHNICAL DAT

7.1 - ELECTRICAL DATA

Power supply:

12 VAC/VDC, 24 VAC/VDC, 100.. 240 VAC +/- 10%

Frequency AC:

50/60 Hz

Power consumption:

4 VA approx.

Input/s:

1 input for temperature probes: tc J,K,S ; infrared sensors TECNOLOGIC IRS J e K; RTD Pt 100 IEC; PTC KTY 81-121 (990 Ω @ 25 °C); NTC 103AT-2 (10KΩ @ 25 °C) or mV signals 0...50 mV, 0...60 mV, 12 ...60 mV or normalized signals 0/4...20 mA, 0..1 V, 0/1...5 V , 0/2...10 V. Normalized

signals input impedance: 0/4..20 mA: 51 Ω; mV and V: 1 MΩ Output/s:

Up to 2 outputs. Relay SPDT (8 A-AC1, 3 A-AC3 / 250 VAC) ; or in tension to drive SSR (8mA/ 8VDC). Auxiliary supply output:

10 VDC / 20 mA Max.

Electrical life for relay outputs:

100000 operat.

Installation category:

Measurement category:

Protection class against electric shock:

Class II for Front panel

Insulation:

Reinforced insulation between the low voltage part (power supply 115 / 230 V and relay outputs) and front panel; Reinforced insulation between the low voltage section (Supply 115 / 230 V and relay outputs) and the extra low voltage section (input,

TECNOLOGIC spa - TLK 38 - OPERATING INSTRUCTIONS - Vr. 03 - ISTR 06519 - PAG. 11

Page 12

SSR outputs); Reinforced between power supply and relay; No insulation between supply 12 V and input. No insulation between input and SSR outputs.

7.2 - MECHANICAL DATA

Housing:

Self-extinguishing plastic, UL 94 V0

Dimensions:

33 x 75 mm, depth 64 mm

Weight:

110 g approx.

Mounting:

Flush in panel in 29 x 71 mm hole

Connections:

2,5 mm2 screw terminals block

Degree of front panel protection :

IP 65 mounted in panel with gasket Pollution situation:

Operating temperature:

0 ... 50 °C

Operating humidity:

30 ... 95 RH% without condensation

Storage temperature:

-10 ... +60 °C

7.3 - MECHANICAL DIMENSIONS, PANEL CUT-OUT AND MOUNTING [mm]

TLK 38

OUT2+=-OUT1

RECOMMEND ED

PANEL CU TOUT

min. 15 mm

min. 12 mm

TYPE 1

PANEL + GASKET

TYPE 2

BRACKET

TYPE 1

BRACKETS

TYPE 2

86 74

MAX 12 mm

MAX 29 mm

7.4 - FUNCTIONAL FEATURES

Control:

ON/OFF, ON/OFF Neutral Zone, PID single Action, PID double action. Measurement range:

according to the used probe (see range table)

Display resolution:

according to the probe used 1/0,1/0,01/0,001

Overall accuracy:

+/- 0,5 % fs (tc S: +/- 1 % fs)

Sampling rate:

130 ms.

Display:

4 Digit Red h 12 mm

Compliance:

ECC directive EMC 2004/108/CE (EN 61326), ECC directive LV 2006/95/CE (EN 61010-1) Approvals:

C-UL (file n. E206847)

7.5 - MEASURING RANGE TABLE

2 ... 10 V

“SEnS” = 2.10

0 ... 10 V

“SEnS” = 0.10

1 ... 5 V

“SEnS” = 1.5

0 ... 5 V

“SEnS” = 0.5

0 ... 1 V

“SEnS” = 0.1

12 ... 60 mV

“SEnS” = 12.60

0 ... 60 mV

“SEnS” = 0.60

0 ... 50 mV

“SEnS” = 0.50

4..20 mA

“SEnS” = 4.20

-199.9 ... 999.9

-19.99 ... 99.99

-1.999 ... 9.999

-1999 ... 9999

0..20 mA

“SEnS” = 0.20

-50.0 ... 110.0 °C

-58.0 ... 230.0 °F

-50 ... 110 °C

-58 ... 230 °F

NTC (103-AT2)

“SEnS” = ntc

-55.0 ... 150.0 °C

-67.0 ...302.0 °F

-55 ... 150 °C

-67 ... 302 °F

PTC (KTY81-121)

“SEnS” = Ptc

-199.9 ... 850.0 °C

-199.9 ... 999.9 °F

-200 ... 850 °C

-328 ... 1562 °F

Pt100 (IEC)

“SEnS” = Pt1

- - - -0 ... 1760 °C

32 ... 3200 °F

tc S

“SEnS” = S

- - - -0 ... 1370 °C

32 ... 2498 °F

tc K

“SEnS” = CrAl

- - - -0 ... 1000 °C

32 ... 1832 °F

tc J

“SEnS” = J

“dP”= 1, 2, 3“dP” = 0INPUT

7.6 – INSTRUMENT ORDERING CODE

TLK38 a b c d ee f

a : POWER SUPPLY F = 12 VAC/VDC L = 24 VAC/VDC H = 100... 240 VAC b : INPUT C = thermocouples (J, K, S, I.R), mV, thermoresistances (Pt100) E = thermocouples (J, K, S, I.R.), mV, thermistors (PTC, NTC) I = normalized signals 0/4..20 mA V = normalized signals 0..1 V, 0/1..5 V, 0/2..10 V. c : OUTPUT

OUT1

R = Relay O = VDC for SSR d

: OUTPUT OUT2

R = Relay O = VDC for SSR

- = None ee:

SPECIAL CODES

f: SPECIAL VERSIONS

TLK 38 PASSWORD = 381

TECNOLOGIC spa - TLK 38 - OPERATING INSTRUCTIONS - Vr. 03 - ISTR 06519 - PAG. 12