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Ascon Tecnologic - K31D - OPERATING INSTRUCTIONS - PAG. 14

7. PROGRAMMABLE PARAMETERS

Hereafter is inserted a description of all the parameters available on the instrument. Some of them may not be present,
either due to the fact they depend on the type of instrument or because they are automatically disabled as unnecessary.

Group

]

Set Point Parameters

Parameter

Description

Range

Default

Note

nSP

Number of the programmable Set Points

1 ÷ 2

SPAt

Active Set Point

1 ÷ nSP

SP1

Set Point 1

SPLL ÷ SPHL

SP2

Set Point 2

SPLL ÷ SPHL

P2HL

Upper Pr2 measurement limit for differential control -1999 ÷ 9999

9999

P2LL

Lower Pr2 measurement limit for differential control -1999 ÷ 9999

-1999

SPLL

Low Set Point

-1999 ÷ SPHL

-1999

SPHL

High Set Point

SPLL ÷ 9999

9999

Group

]

InP

Measure Input Parameters

Parameter

Description

Range

Default

Note

SEnS

Probes type

Ptc

PTC

ntc

NTC

Pt10

Pt1000

ntc

Pr2

Probe Pr2 presence

yES
no

yES

Number of decimal figures

0/1

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

Unit

Temperature unit of measurement

°C/°F

°C

FiL

Input digital filter

oFF

Not active

0.1 ÷ 20.0 s

1.0

oFS1

Measuring Offset Pr1

-1999 ÷ 9999

oFS2

Measuring Offset Pr2

-1999 ÷ 9999

rot

Rotation of the measuruing straigìht line

0.000 ÷ 2.000

1.000

InE

oPE

functioning in case of measuring error

Overrange

Under range

our

Overrange and underrange

our

oPE

Output power in case of measuring error

-100 ÷ 100%

dIF

Digital inputs function

noF

No Function

Aac

Reset Alarms latch

ASi

Acknowledged Alarms

HoLd

Hold Measure

oFF

Control OFF

CHSP

Sequential Set Point selection

SP1.2

SP1

SP2

Set Point selection

HE.Co

Select

HEAt

with

SP1

CooL

with

SP2

noF

Group

]

Out

Outputs Parameters

Parameter

Description

Range

Default

Note

O1F

Output 1 function

1.rEG

Control output 1

2.rEG

Control output 2

ALno

Alarm Output NO

ALnc

Alarm Output NC

ALni

Alarm Output NC with reversed LED functioning

1.rEG

O2F

Output 2 function

ALno

O3F

Output 3 function

ALno

O4F

Output 4 function

ALno

Summary of Contents for K31D

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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