Ero electronic LDE Manuale utente

170.IU0.LXE.0D0

UUSER MANUALUSER MANUAL

USER MANUALUSER MANUAL

USER MANUAL

UISTRUZIONI D'USOISTRUZIONI D'USO

ISTRUZIONI D'USOISTRUZIONI D'USO

ISTRUZIONI D'USO

LDE

LME

Lxe-0-C00-B.pmd 28/01/2004, 14:591

INDICE

A. DIMENSIONIEFORATURA ........................A.3

1. MONTAGGIO ................................................. 1

2. COLLEGAMENTIELETTRICI ......................... 2

3. IMPOSTAZIONIHARDWARE

PRELIMINARI ................................................. 6

4. CONFIGURAZIONE ........................................ 6

4.1 Operatività dei pulsanti ........................ 6

4.2 Eventuale protezione dei parametri...... 6

4.3 Accesso alla configurazione ................ 7

4.4 Parametridiconfigurazione .................. 7

5. MODOOPERATIVO..................................... 15

5.1 Preliminari............................................ 15

5.2 AlgoritmoSMART ................................ 15

5.3 Inibizione del segnale di uscita.......... 16

5.4 Visualizzazione del set point

impostato(modelloLDE)..................... 16

5.5 SelezioneSP/SP2............................... 16

5.6 Modifica diretta del set point .............. 16

5.7 Descrizione dei modi timer ................. 17

5.8 Riarmomanualedell'allarme................ 20

5.9 Funzione "Soft Start" .......................... 21

5.10 Lamp test ............................................ 21

5.11 Operatività dei pulsanti ...................... 21

5.12 Indicatori ............................................. 21

5.13 Parametrioperativi .............................. 22

6. MESSAGGIDIERRORE .............................. 25

6.1 Segnalazioneanomaliadellamisura .. 25

6.2 Messaggidi errore .............................. 26

6.3 Lista degli errori possibili.................... 26

7. CARATTERISTICHETECNICHE................... 27

7.1 Specifiche tecniche ............................ 27

7.2 Ingressi ............................................... 27

7.3 Azioni di controllo ............................... 28

7.4 Uscite .................................................. 29

7.5 CPI - Configuration Port Interface...... 29

8. MANUTENZIONE .......................................... 29

B. DEFAULTPARAMETERS ............................B.1

A. 2

INDEX

A. OUTLINEANDCUTOUTDIMENSIONS......A.4

1. MOUNTING .................................................... 1

2. ELECTRICALCONNECTIONS ........................ 2

3. PRELIMINARYHARDWARE

SETTINGS...................................................... 6

4. CONFIGURATION .......................................... 6

4.1 Pushbutton function ............................. 6

4.2 Possible protection of the parameters . 6

4.3 Access to the configuration procedure 6

4.4 Configurationparameters ..................... 7

5. OPERATIVEMODE ..................................... 15

5.1 Preliminarycomments ......................... 15

5.2 SMARTalgorithm ................................ 15

5.3 Inhibition of the out signal .................. 16

5.4 Displaying the set point set

(modelLDE)......................................... 16

5.5 SP/SP" selection ................................ 16

5.6 Direct modification of the set point .... 16

5.7 Timermodedescription ....................... 17

5.8 Manual reset of the alarm................... 20

5.9 Soft Start Ffunction ............................ 21

5.10 Lamp test ............................................ 21

5.11 Function of the pushbuttons .............. 21

5.12 Indicators ............................................ 21

5.13 Operativeparameters ......................... 22

6. ERRORMESSAGES .................................... 25

6.1 Measurement anomalysignal ............ 25

6.2 Error messages .................................. 26

6.3 List of possible errors ........................ 26

7. TECHNICALCHARACTERISTICS ................ 27

7.1 Technical specifications ..................... 27

7.2 Inputs.................................................. 27

7.3 Control actions.................................... 28

7.4 Outs .................................................... 29

7.5 CPI - Configuration Port Interface...... 29

8. MAINTENANCE ............................................ 29

B. DEFAULTPARAMETERS ............................B.1

Ixe-0-B00.p65 10/18/02, 3:43 PM2

A. 3

A. DIMENSIONI E FORATURA

LDE LME

Ixe-0-B00.p65 10/18/02, 3:43 PM3

A. 6

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1. MOUNTING

Select a mounting location where there is

minimum vibration and the ambient temperature

ranges between 0 and 50°C (32 and 122°F).

The instrument can be mounted on a panel up to

15 mm thick with a square cutout of 45 x 45 mm.

For outline and cutout dimensions refer to

page A.4.

The surface texture of the panel must be better

than 6.3 µm.

The instrument is fitted with a rubber panel gasket.

To assure IP65 and NEMA 4 protection, insert the

panel gasket between the instrument and the

panel as shown in Fig. 1.

While holding the instrument against the panel

proceed as follows:

1) insert the gasket in the instrument case;

2) insert the instrument in the panel cutout;

3) pushing the instrument against the panel, insert

the mounting bracket;

4) with a screwdriver, turn the screws with a

torque between 0.3 and 0.4 Nm. Fig. 1 PANEL MOUTING

screws

bracket

gasket

panel

lxe-1-B00.p65 10/18/02, 3:46 PM1

MEASURING INPUTS

NOTE: Any external components (like zener

barriers etc.) connected between sensor and input

terminals may cause errors in measurement due

to excessive and/or not balanced line resistance or

possible leakage currents.

TC INPUT

Fig. 3 THERMOCOUPLE CONNECTION

NOTES:

1) Do not run input wires together with power line

cables.

2) For TC wiring use proper compensating cable

preferablyshielded.

3) When a shielded cable is used, it should be

connected at one point only.

2. ELECTRICAL CONNECTIONS

Connections are to be made with the instrument

housing installed in its proper location.

Fig. 2 REAR TERMINAL BLOCK

Shield

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RTD INPUT

Fig. 4 RESISTANCE TEMPERATURE

DETECTOR CONNECTION

NOTES:

1) Do not run input wires together with power line

cables.

2) Pay attention to the line resistance; a resistance

higher than 20 Ω/wire may cause measurement

errors.

3) When shielded cable is used, it should be

grounded at one side only to avoid ground loop

currents.

4) The impedence of the 3 wires must be the

same.

RTD

9 8

RTD

Log. input 2

LOGIC INPUT

Safety note:

1) The "OUT 3" and the "logic input" options are

mutually exclusive.

2) Do not run logic input wiring together with

power cables.

3) Use an external dry contact capable of

switching 8 mA, 8 V DC.

4) The instrument needs 300 ms to recognize a

contact status variation.

5) The logic input is NOT isolated by the

measuringinput

Fig. 5 - LOGIC INPUT WIRING

The logic input can be programmed as:

A) Set point selector

A.1) In this case it will operate as follows:

logic input operat. set point

open SP

close SP2

B) Start timer

In this case it will operate as described at

paragraph 5.10 (Timer modes description).

lxe-1-B00.p65 10/18/02, 3:46 PM3

3) Use copper conductors only.

4) Do not run input wires together with power

line cables.

5) The "OUT 3" and the "logic input" options are

mutually exclusive.

The following recommendations avoid serious

problems which may occur it when using relay

output to drive inductive loads.

INDUCTIVE LOADS

High voltage transients may occur when switching

inductiveloads.

These transients may introduce disturbances

through the internal contacts which can affect the

performance of the instrument.

The internal protection (varistors) assures correct

protection up to 0.5 A of inductive component but

the OUT 1 NC contact is not protected.

The same problem may occur when a switch is

used in series with the internal contacts.

Fig. 7 EXTERNAL SWITCH IN SERIES WITH

THE INTERNAL CONTACT

In these cases an additional RC network should

be installed across the external contact as shown

in Fig. 7

The value of the capacitor (C) and resistor (R) are

shown in the following table.

LOAD

POWER

LINE

RELAY OUTS

Fig. 6 RELAY OUTS

The OUT 1 NO contact and the OUT 2 and OUT 3

contactsareprotectedbyvaristorsagainstinductive

load with inductive component up to 0.5 A.

The OUT 1 contact rating is 3A/250V AC on

resistive load.

The OUT 2 and OUT 3 contact rating is 2A/250V

AC on resistive load.

The number of operations is 1 x 105at specified

rating.

NOTES:

1) To avoid electric shock, connect the power

line at the end of the wiring procedure.

2) For power connections use No 16 AWG or

larger wires rated for at least 75°C.

OUT 2

15 C

OUT 3

OUT 1

lxe-1-B00.p65 10/18/02, 3:46 PM4

In every case the cable connected to the relay

outs must be routed as far away as possible from

input or communication cables.

VOLTAGE OUTS FOR SSR DRIVE

Fig. 8 SSR DRIVE OUT WIRING

It is a time proportioning out.

Logic level 0: Vout < 0.5 V DC.

Logic level 1: Maximum current = 20 mA.

- 14 V + 20 % @ 20 mA

- 24 V + 20 % @ 1 mA.

NOTE: This out is NOT isolated.

AdoubleorreinforcedIsolationbetweeninstrument

output and power supply must be assured by the

external solid state relay.

LOAD

(mA)

<40 mA

<150 mA

<0.5 A

(mF)

0.047

0.1

0.33

(W)

100

(W)

1/2

OPERATING

VOLTAGE

260 V AC

OUT 1

SOLID STATE

RELAY

POWER LINE WIRING

Fig. 9 POWER LINE WIRING

NOTES:

1) Before connecting the instrument to the supply,

make sure that the line voltage corresponds to

that indicated on the rating plate.

2) Toavoid electricshock,connectthepowerlineat

the end of the wiring procedure.

3) ForsupplyconnectionsuseNo16AWGorlarger

wires rated for at least 75°C.

4) Use copper conductors only.

5) Do not run input wires together with power line

cables.

6) For 24 V AC/DC the polarity does not matter.

7) The power supply input has NO fuse protection.

Please,provide aTtype1A,250Vfuseexternally.

8) The safety regulations for equipment

permanently connected to the mains require

that there is a switch or circuit breaker in the

building electrical system and that this:

- isnearthedeviceandcaneasilybereachedby

theoperator;

- is marked as the device ON/OFF device.

NOTE: A single switch or circuit-breaker can drive

more than one instrument.

R (S,T)

Power Line

100 V to 240 V AC (50/60Hz)

or 24 V AC/DC

lxe-1-B00.p65 10/18/02, 3:46 PM5

3. PRELIMINARY HARDWARE

SETTINGS

These instruments can detect the opening of the

input circuit (TC or RTD). This failure is displayed

as an overrange condition.

For the thermocouples only one can select, by

means of jumpers SH1 and CH1 indicated in Fig.

9, the type of indication to be obtained when the

thermocouple is open (see table at the bottom of

thepage).

To gain access to the jumpers the instrument must

be taken out of its case.

SH1 CH1

Fig. 10 SH1 and CH1 JUMPERS

SH1 CH1 Indication

open close overrange(standard)

close open underrange

4. CONFIGURATION

4.1 PUSHBUTTON FUNCTION

FUNC This saves the new value of the

selected parameter and goes to the

next parameter (increasing order).

SMT This scrolls back the parameters

without saving the new value.

sThis increases the value of the selected

parameter.

tThis decreases the value of the

selectedparameter.

4.2 POSSIBLE PROTECTION OF THE

PARAMETERS

Access to the configuration and the display and

modification of the operative parameters, can be

protected by a secret code. The code is entered in

configuration, by means of parameters P11 and

P14.

P11 = 0 All the operative parameters can be

displayed and modified. Access to the

configuration is free.

P11 = 1 and P14 = On All the operative

parameters can be displayed but not modified,

apart from SP (Set Point), SP2 (second set point)

and t (time of the timer function). Access to the

configuration is only possible by entering the

master key code when requested.

P11 = 1 and P14 = OFF No operative parameter

can be displayed and modified, apart from SP,

SP2 and t. Access to the configuration is only

possible by entering master key when requested.

P11 = 2/499 In this case the value programmed in

P11 represents a numerical key which can be

used to protect access to the configuration and, in

operative mode, the modification of the

lxe-1-B00.p65 10/18/02, 3:46 PM6

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