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Ascon Tecnologic - K31D - OPERATING INSTRUCTIONS - PAG. 4

OFF

, while 

any value different from 0

 corresponds to 

an 

activated output

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 selec-

tion menu.

2.5  Active Set Point Selection

This instrument allows to program up to 2 different Set Points 
(

SP1

SP2

) and select which must be considered active.

The number of Set Points is determined by the parameter 

nSP

 

located in the 

]

SP

 parameters group.

The active Set Point can be selected:

 

By parameter 

SPAt

 in the group of parameters 

]

SP

;

 

By key 

 if parameter 

USrb

 = 

CHSP

;

 

By the digital inputs if parameter 

diF

 has been correctly pro-

grammed (

diF

 = 

CHSP

diF

 = 

SP1.2

diF

 = 

HE.Co

);

 

Automatically between 

SP1

 and 

SP2

 if a time 

dur.t

 (para-

graph 5.9) has been programmed.

Set Points 

SP1

SP2

 will be visible depending on the maxi-

mum number of Set Points selected with parameter 

nSP

 and 

they can be programmed with a value that is between the 
value programmed in 

SPLL

 and the one programmed in 

SPHL

.

Note: 

In examples that follow the Set Point is indicated as 

SP

, however the instrument will act according to the 

Set Point selected as active.

3.  USAGE WARNING

3.1  Admitted use

 

m

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 

MUST NOT

 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.

4.  INSTALLATION WARNINGS

4.1  Mechanical mounting

The instrument, in case 78 x 35 mm, is designed for flush-
in panel mounting.  Make a hole 71 x 29 mm and insert the 
instrument, fixing it with the provided special brackets.
The instrument can be mounted on panels having a maxi-
mum thickness of 12 mm.
When the maximum front protection (IP65) is desired, the 
optional screw type bracket must be used.
Avoid placing the instrument in environments with very high 
humidity levels or dirt that may create condensation or cause 
the 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 
temperature higher than the one permitted and declared.
Connect the instrument as far away as possible from sourc-
es of electromagnetic disturbances such as motors, power 
relays, relays, solenoid valves, etc..

4.2  Dimensions

 (mm)

4.2.1 

Mechanical dimensions

K31D

Tun

Out1 Out2

Out3 Out4

P

U

18.5

28

28

12

14.5

5.5

64

78

35

4.2.2 

Panel cut-out

86 min.

41 min.

71+0.6

29

+0.

6

4.2.3 

Brackets

Panel thickness: 12 mm max.

Brackets

34

4.3  Electrical connections

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 

Содержание K31D

Страница 1: ...an therefore be used in applications that require a control for the temperature difference between 2 different environments such as liquid coolers chillers natural air conditioning systems through the air recirculation heating by solar panels or in many other applications where 2 temperature readings are needed The controller is also Index 1 Instrument description 1 1 1 General description 1 1 2 F...

Страница 2: ...that the process value is lower than the one programmed for parameter AdE 12 LED Shift index Indicates that the process value is within the range SP AdE SP AdE 13 LED Shift index Indicates that the process value is higher than the one set for parameter AdE 2 PROGRAMMING 2 1 Set Point Fast Programming This procedure allows you to quickly set the active Set Point and when required the alarm threshol...

Страница 3: ...r or disappear on this level by fol lowing this procedure Enter the menu ConF and select the parameter to be made programmable or not programmable in the menu oPEr Once the parameter has been selected if the LED SET is OFF this means that the parameter is programmable only in the menu ConF if instead the SET LED is ON this means that the parameter is also programmable in the menu oPEr To modify th...

Страница 4: ...entioned rule must adopt all the necessary protective measures The instrument MUST NOT 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 4 INSTALLATION WARNINGS 4 1 Mechanical mounting The instrument in case 78 x 35 mm is designed for fl...

Страница 5: ...probe is not connected The instrument allows the measurement calibration that can be used to recalibrate the instrument according to application needs This can be done through parameters OFS1 OFS2 and rot Setting rot 1000 and oFS 1 2 it is possible to set a posi tive or negative offset that is simply added to the value read by the probe before visualisation which remains constant for all the measu...

Страница 6: ...2HL the process value considered by the controller is Pr1 P2LL When P2HL and P2LL thresholds are exceeded by Pr2 tem perature a control takes place as if the Pr2 temperature is the value of the limit regardless of the value actually read The aim of this function is to limit the differential regulation to within a maximum range of the Pr2 measurement With the differential control the working mode F...

Страница 7: ...gle Action PID control can be obtained by program ming parameter Cont Pid and works on 1 rEG output depend ing on the active Set Point SP the functioning mode Func and on the instrument PID algorithm with 2 freedom degrees If the Out1 analogue output is present 0 4 20 mA 0 2 10 V the output will operate as a regulation output providing a value proportional to the regulation power calculated by the...

Страница 8: ...h Func CooL 4 If FAST Auto tuning is desired to start automati cally all times the Set Point is changed or at the end of the programmed Softstart cycle The Auto tuning starts anyway if PV is lower than SP SP 5 with Func HEAt or higher than SP SP 5 with Func CooL 1 If OSCILLATORY Auto tuning is desired to start auto matically all times the instrument is switched ON 2 If OSCILLATORY Auto tuning is d...

Страница 9: ...d when the relative parameters are set to InF If is desired only one ramp e g to reach SP1 it is enough to program the parameter SLor with the desired value The ramp SLor will always be active at Power ON and when the Active Set Point value is changed On the contrary if an automatic cycle is to be executed at Power ON program nSP 2 then the two Set Point values SP1 and SP2 and naturally parameters...

Страница 10: ...AL1 and is deactivated when thePV goes below the value AL1 HAL1 In this way is possible to program with AL1L and AL1H parameters the minimum and the maximum limits of AL1 thresholds LoAb OUT AL1 AL1 PV HAL1 time HiAb off off off OUT AL1 AL1 PV HAL1 time off off off ON ON ON ON LodE Deviation low alarm The alarm is activated when the process value goes below the value SP AL1 and is deactivated when...

Страница 11: ...f a measurement error yES Alarm active no Alarm deactivated 5 12 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 i...

Страница 12: ...nSP 2 and when active it disables the selection of the active Set Point through the parameter SPAt and through the key 5 15 RS485 Serial Interface The instrument can be equipped with a RS485 serial com munications interface by means of which it is possible to connect the controller to a network to which other instru ments PLC controllers are connected All these devices typically depend on a Person...

Страница 13: ...nfiguration or to keep a copy of the parameters setting of an instrument and allow its rapid retransmission The same device allows to connect a PC via USB with which through the appropriate configuration software for AT Univer salConf tool the operating parameters can be configured To use the A01 device it is necessary that the device or instrument are being supplied AC supply Supply adapter 12 VD...

Страница 14: ...Number of decimal figures 0 1 0 12 Aot Analogue control Output type 0 20 0 20mA 4 20 4 20 mA 0 10 0 10 V 2 10 0 10 V 0 10 13 Unit Temperature unit of measurement C F C 14 FiL Input digital filter oFF Not active 0 1 20 0 s 1 0 15 oFS1 Measuring Offset Pr1 1999 9999 0 16 oFS2 Measuring Offset Pr2 1999 9999 0 17 rot Rotation of the measuruing straigìht line 0 000 2 000 1 000 18 InE oPE functioning in...

Страница 15: ... 1 33 AL1d AL1 Alarm activation delay oFF Not active 1 9999 s OFF 34 AL1i Alarm AL1 activation in case of probe error no yES no Group AL2 AL2 Alarm Parameters Parameter Description Range Default Note 35 OAL2 Output where alarm AL2 is addressed oFF Not active Out1 Out2 Out3 Out4 oFF 36 PrA2 AL2 Alarm PV reference Pr1 Pr2 P1 2 P1 L Pr1 37 AL2t AL2 Alarm type LoAb Absolute Low HiAb Absolute High LHAb...

Страница 16: ... error no yES no Group lba Loop Break Alarm Parameters Parameter Description Range Default Note 55 OLbA Output where LbA alarm is addressed oFF Not active Out1 Out2 Out3 Out4 OFF 56 LbAt Time necessary to activate alarm LbA oFF Not active 0 9999 s OFF Group reg Control Parameters Parameter Description Range Default Note 57 Cont Control type Pid PID on FA Asymmetrical ON OFF on FS Symmetrical ON OF...

Страница 17: ...SP Active Set Point selection oFF Control in OFF mode noF 78 diSP Displayed Variable Pr1 Pr1 Value Pr2 Pr2 Value P1 2 Pr1 Pr2 Value Pou Control Power SP F Active Set Point Value SP o Operative Set Point value AL1 AL1 threshold AL2 AL2 threshold AL3 AL3 threshold P1 2 79 AdE Shift value for the shift index functioning 0 OFF 1 9999 2 80 Edit Fast programming Active Set Points and Alarms SE Set Point...

Страница 18: ... contact our sales department to obtain authorisation for sending the instru ment to our company The faulty product must be shipped to Ascon Tecnologic with a detailed description of the faults found without any fees or charge for Ascon Tecnologic except in the event of different agreements 8 5 Disposal The appliance or the product must be disposed of separately in compliance with the local standa...

Страница 19: ...61010 1 10 HOW TO ORDER Model K31D Instrument with mechanical keys a Power supply H 100 240 VAC L 24 VAC DC F 12 VAC DC b Inputs 2 For PTC NTC Thermistors or Pt1000 resistance thermometer d Output 2 Out2 R Relay SPDT 8A resistive load O Vdc for SSR Not present e Output 3 Out3 R Relay SPST NO 5A resistive load O Vdc for SSR Not present f Output 4 Out4 R Relay SPST NO 5A resistive load O Vdc for SSR...

Страница 20: ...Ascon Tecnologic K31D OPERATING INSTRUCTIONS PAG 20 ...

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