Download User`s Guide

Guida dell’utente
Alimentatori DC
a uscita singola
Agilent Technologies
E364xA
Copertina esterna anteriore per E364xA (1 di 2)
Guida dell’utente - Alimentatori DC a uscita singola Agilent Technologies E364xA
(Manuale italiano)
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Descrizione del pannello frontale
1 Tasto per la selezione del range
a bassa tensione
2 Tasto per la selezione del range
ad alta tensione
3 Tasto di protezione da sovratensione
4 Tasto di visualizzazione dei limiti
5 Tasto di regolazione tensione/corrente
6 Menu di richiamo/ripristino dello stato
operativo memorizzato
2
7 Menu di memorizzazione dello stato
operativo/locale
8 Menu di visualizzazione/Tasto
Calibrazione
9 Menu di configurazione I/O/Tasto
di protezione
10 Tasto di attivazione/disattivazione
dell’uscita
11 Tasti di selezione della risoluzione
12 Manopola
Menu del pannello frontale/Descrizione dei tasti
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DXWRPDWLFDPHQWHOªXWHQWHQHOODVHOH]LRQHGLWXWWLLSDUDPHWULQHFHVVDUL
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1 Tasto per la selezione del range a bassa tensione Seleziona il range
a bassa tensione, consentendo di regolare l’uscita sui terminali di uscita.
2 Tasto per la selezione del range ad alta tensione Seleziona il range
ad alta tensione, consentendo di regolare l’uscita sui terminali di uscita.
3 Tasto di protezione da sovratensione Abilita o disabilita la funzione di
protezione da sovratensione, imposta il livello di scatto della tensione e azzera
la condizione di sovratensione.
4 Tasto di visualizzazione dei lim iti V isualizza sullo scherm o il valore dei lim iti
di tensione e di corrente, consentendone la regolazione attraverso la m anopola.
5 Tasto di regolazione tensione/corrente Seleziona la funzione di controllo
della manopola per la regolazione della tensione o della corrente.
6 Menu di richiamo/ripristino dello stato operativo memorizzato Richiama
uno stato operativo salvato nelle posizioni da ‘‘1’’ a ‘‘5’’ e ripristina lo stato di
accensione dell’alimentatore (comando *RST) dal pannello frontale
selezionando il tasto ‘‘RESET’’ da questo menu.
7 Menu di memorizzazione dello stato operativo/locale1 Salva fino a cinque
stati dell’alimentatore nella memoria non volatile e assegna un nome a
ciascuna delle posizioni di memorizzazione oppure riporta l’alimentatore dalla
modalità interfaccia remota alla modalità locale.
8 Menu di visualizzazione/Tasto Calibrazione2 Visualizza i codici di errore
e il testo del messaggio di errore, della stringa di calibrazione e della revisione
del firmware del sistema oppure abilita la modalità calibrazione.
9 Menu di configurazione I/O/Tasto Protezione3 Configura l’alimentatore per
le interfacce remote oppure attiva e disattiva la protezione dell’alimentatore
per la calibrazione.
10 Tasto di attivazione/disattivazione dell’uscita Abilita o disabilita l’uscita
dell’alimentatore. Questo tasto commuta da acceso a spento e viceversa.
11 Tasti di selezione della risoluzione Spostano la cifra lampeggiante verso
destra o verso sinistra e regolano la velocità di scorrimento del testo che
appare nel menu di visualizzazione.
12 Manopola Aumenta o diminuisce il valore della cifra lampeggiante se si ruota
la manopola rispettivamente in senso orario o in senso antiorario.
1
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3
Impostazione dei limiti di corrente e di tensione
sul pannello frontale
È possibile impostare il valore dei limiti di tensione e di corrente dal pannello
frontale utilizzando il seguente metodo.
Per modificare il valore dei limiti di tensione e di corrente utilizzare il tasto
di regolazione tensione/corrente, i tasti di selezione della risoluzione e la
manopola di controllo.
Low
Or
+
High
1 Selezionare il range di tensione desiderato utilizzando i tasti di selezione
della scala dopo aver acceso l’alimentatore.
2 Premere Display
Limit per visualizzare i valori limite sul display.
3 Spostare la cifra lampeggiante nella posizione appropriata utilizzando i tasti
di selezione della risoluzione e modificarne il valore al limite di tensione
desiderato agendo sulla manopola di controllo. Se il tempo massimo
per la funzione di visualizzazione del limite scade, premere di nuovo Display
Limit .
Voltage
4 Premere Current
per impostare la manopola per il controllo della corrente.
5 Spostare la cifra lampeggiante nella posizione appropriata utilizzando i tasti
di selezione della risoluzione e modificarne il valore al limite di corrente
desiderato agendo sulla manopola di controllo.
6 Premere Output
O n/O ff per abilitare l’uscita. Dopo circa 5 secondi il display passerà
automaticamente alla modalità di controllo dell’uscita, visualizzando la
tensione e la corrente di uscita.
Nota
È possibile disabilitare tutti i tasti e i controlli posti sul pannello frontale tramite
i comandi dell’interfaccia remota. Per poterli utilizzare è necessario che
l’alimentatore sia in modalità "Local" (locale).
4
Indicatori dello schermo
Adrs
All'alimentatore è stato richiesto di ricevere o di trasmettere verso
l'interfaccia remota.
Rmt
L’alimentatore è in modalità interfaccia remota.
8V*
Indica che è stato selezionato il range a bassa tensione.
20V*
Indica che è stato selezionato il range ad alta tensione.
35V**
Indica che è stato selezionato il range a bassa tensione.
60V**
Indica che è stato selezionato il range ad alta tensione.
OVP
Quando viene abilitata la protezione da sovratensione,
l'indicatore si accende oppure, quando il circuito di protezione
causa lo spegnimento dell'alimentatore, l’indicatore lampeggia.
CAL
L'alimentatore è in modalità calibrazione.
Limit
Il display visualizza il valore dei limiti di tensione e di corrente.
ERROR Errore rilevato nell'hardware o in un comando inviato dall'interfaccia
remota; il bit di errore non è stato cancellato.
OFF
L’uscita dell’alimentatore è disabilitata (per ulteriori informazioni
vedere a pagina 54).
Unreg
L'uscita dell'alimentatore non è regolata (l'uscita non è né CV
né CC).
CV
L'alimentatore è in modalità a tensione costante.
CC
L'alimentatore è in modalità a corrente costante.
Per visualizzare gli indicatori del display, tenere premuto il tasto
quando si accende l'alimentatore.
*Per i modelli E3640A/42A/44A.
Display
Limit
**Per i modelli E3641A/43A/45A.
5
Descrizione del pannello posteriore
1RWDLOFRGLFHIRUQLWRUHGHO&7LFNSHU($$q1
1 Presa AC
2 Gruppo portafusibile
3 Modulo di alimentazione
4 Connettore per interfaccia RS-232
5 Connettore per interfaccia GPIB
(IEEE-488)
6 Terminali di uscita posteriori
I/O
Utilizzare il tasto Config
del pannello frontale per:
• Selezionare l'interfaccia GPIB o RS-232 (ved. Capitolo 3).
• Impostare l'indirizzo GPIB (ved. Capitolo 3).
• Impostare il baud rate e la parità dell'interfaccia RS-232 (ved. Capitolo 3).
6
In questo manuale
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100V
115V
230V
(VISTA DALL’ALTO)
Figura 1-1. Selettore della tensione di rete (impostato per 115Vac)
21
Capitolo 1 Guida rapida
Conversione della tensione di rete
1 Scollegare il cavo di alimentazione.
Rimuovere il gruppo del fusibile dal pannello posteriore con un cacciavite a punta
piatta.
2 Rimuovere il portafusibile dal gruppo.
3 Inserire il fusibile corretto.
4 Riposizionare il gruppopo del fusibile
nel pannello posteriore.
Verificare che sia selezionato il voltaggio di linea corretto e che il fusibile
di alimentazione sia appropriato.
22
Capitolo 1 Guida rapida
Regolazione della maniglia
1
Regolazione della maniglia
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Posizioni da banco
Posizioni da trasporto
23
Capitolo 1 Guida rapida
Montaggio in rack
Montaggio in rack
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tirandole verso l’esterno.
Parte anteriore
Parte posteriore (vista dal basso)
Per rimuovere il cuscinetto in gomma, allungarne un angolo e quindi estrarlo.
24
Capitolo 1 Guida rapida
Montaggio in rack
1
Per montare in rack un singolo strumento, ordinare il kit 5063-9240.
Per montare in rack due strumenti affiancati, ordinare il kit giunti di raccordo 5061-9694
e flange 5063-9212. Accertarsi di utilizzare i binari di supporto all’interno del cabinet
in rack.
Per installare uno o due strumenti in un ripiano di supporto scorrevole, ordinare il kit
ripiano 5063-9255, e parte scorrevole 1494-0015 (per un singolo strumento, ordinare
anche un pannello di riempimento 5002-3999).
25
Capitolo 1 Guida rapida
Montaggio in rack
26
2
Informazioni generali
Informazioni generali
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Capitolo 2 Informazioni generali
Considerazioni sulla sicurezza
Considerazioni sulla sicurezza
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29
2
Capitolo 2 Informazioni generali
Opzioni ed accessori
Opzioni ed accessori
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30
Capitolo 2 Informazioni generali
Descrizione
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2
Capitolo 2 Informazioni generali
Descrizione
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Avvertenza
Fluttuazioni dell’uscita dell’alimentatore superiori a +/- 60 Vdc rispetto al telaio
rappresentano un pericolo di scossa elettrica per l’operatore. Le fluttuazioni delle
uscite non devono superare +/- 60 Vdc quando si utilizzano cavetti di rilevamento
privi di isolamento per collegare il terminale d’uscita (+) con quello di rilevamento
(+) e il terminale d’uscita (-) con quello di rilevamento (-) sul retro dell’unità.
1. Tensione fuori massa max +/-60 Vdc
rispetto a ( ) (conduttori di cortocircuito
privi d’isolamento)
(Terminali d’uscita posteriori)
32
2. Tensione fuori massa max +/-240 Vdc
rispetto a ( ) (conduttori di cortocircuito
isolati)
Capitolo 2 Informazioni generali
Installazione
Installazione
Ispezione iniziale
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RFFRUVLGXUDQWHLOWUDVSRUWR,QFDVRGLGDQQLFRPXQLFDUQHLPPHGLDWDPHQWHLO
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Raffreddamento
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DOOªLQWHUQRGLXQUDFN$JLOHQWQRQLPSHGLVFHLOIOXVVRGHOOªDULD
Funzionamento in configurazione da banco
/
DOLPHQWDWRUHGHYHHVVHUHLQVWDOODWRLQXQOXRJRFKHSUHVHQWLVSD]LRVXIILFLHQWH
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33
2
Capitolo 2 Informazioni generali
Collegamenti di uscita
Collegamenti di uscita
Avvertenza
Prima di provare a collegare i cavetti ai terminali di uscita posteriori, spegnere
l’alimentatore per evitare danni ai circuiti collegati.
,VHUUDILOLGLFROOHJDPHQWRSRVWLVXOSDQQHOORIURQWDOHSRVVRQRHVVHUHXWLOL]]DWL
SHUFROOHJDUHLFDYHWWLGLFDULFRSHULOIXQ]LRQDPHQWRLQFRQILJXUD]LRQHGD
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GLPHQVLRQHFRPSUHVDWUD$:*H$:*
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Livelli di corrente
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$:*$PHULFDQ:LUH*DJH
Tabella 2-1 Prestazioni dei cavetti
AWG
10
12
14
16
18
20
22
24
26
28
Corrente massima
suggerita (amps)*
40
25
20
13
10
7
5
3,5
2,5
1,7
mΩ/ft
1,00
1,59
2,53
4,02
6,39
10,2
16,1
25,7
40,8
64,9
mΩ/m
3,3
5,2
8,3
13,2
21,0
33,5
52,8
84,3
133,9 212,9
*Conduttore singolo all’aria aperta a 30 °C isolato
Avvertenza
Per soddisfare i requisiti di sicurezza, è necessario che i cavetti di collegamento
al carico siano sufficientemente pesanti da non surriscaldarsi quando la corrente
d’uscita di cortocircuito dell’alimentatore è ai massimi livelli. In presenza di più di
un carico, ciascuna coppia di cavetti di carico deve essere in grado di supportare
senza problemi la velocità della corrente dell’alimentatore a pieno regime.
34
Capitolo 2 Informazioni generali
Collegamenti di uscita
Cadute di tensione
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LPSHGLUHFDGXWHGLWHQVLRQHGRYXWHDOOªLPSHGHQ]DGHLFDYHWWL,QJHQHUDOHVHL
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FRUWRFLUFXLWRVHQ]DVXUULVFDOGDUVLOHFDGXWHGLWHQVLRQHQRQFRVWLWXLUDQQRXQ
SUREOHPD7DOLFDGXWHQHLFDYHWWLGLFDULFRGRYUHEEHURHVVHUHOLPLWDWHDXQ
YDORUHLQIHULRUHDGXHYROW3HUFDOFRODUHODFDGXWDGLWHQVLRQHSHUDOFXQLFDYHWWL
GLUDPH$:*GLXVRFRPXQHIDUHULIHULPHQWRDOOD7DEHOOD
Considerazioni sul carico
Carico capacitivo
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FRQGHQVDWRULGLJURVVRFDULFRSRWUHEEHURFDXVDUHOªDWWLYD]LRQHGHOODULVSRVWD
DLWUDQVLWRUL'HWHUPLQDWHFRPELQD]LRQLGLFDSDFLWjGLFDULFRODUHVLVWHQ]DGHOOH
VHULHHTXLYDOHQWLHOªLQGXWWDQ]DGHOFDYHWWRGLFROOHJDPHQWRGLFDULFRSRVVRQR
JHQHUDUHLQVWDELOLWjRVFLOOD]LRQH,QTXHVWRFDVRqVSHVVRSRVVLELOHULVROYHUH
LOSUREOHPDDXPHQWDQGRRGLPLQXHQGRODGLPHQVLRQHGHOFDULFRFDSDFLWLYR
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35
2
Capitolo 2 Informazioni generali
Collegamenti di uscita
Carico della corrente inversa
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36
Figura 2-2. Collegamenti di rilevamento
locale
Capitolo 2 Informazioni generali
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2
Capitolo 2 Informazioni generali
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38
3
Funzionamento e caratteristiche
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40
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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41
3
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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3
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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49
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Capitolo 3 Funzionamento e caratteristiche del pannello frontale
Programmazione della funzione di protezione da sovratensione (OVP)
Nota
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di blocco, che manda efficacemente in corto circuito l'uscita dell'alimentatore ogni
qual volta si determina una condizione di sovratensione. Se all'uscita è collegata una
fonte di tensione esterna, quale ad esempio una batteria, e si determina una
condizione di sovratensione, la caduta continua di una corrente elevata dalla sorgente
provocata dall'SCR può danneggiare l'alimentatore. Per evitare che ciò avvenga, è
necessario collegare un diodo in serie con l'uscita, come indicato in Figura 3-1.
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Figura 3-1. Circuito di protezione raccomandato per la carica delle batterie
53
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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Non utilizzare l'interfaccia RS-232 se l'alimentatore è stato configurato per fornire
segnali di controllo da relè. Tale configurazione potrebbe danneggiare i componenti
interni della circuiteria.
54
Capitolo 3 Funzionamento e caratteristiche del pannello frontale
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70
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Capitolo 4 Interfaccia remota
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72
Capitolo 4 Interfaccia remota
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75
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Cenni preliminari di programmazione
Range di programmazione dell'alimentatore
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dell'alimentatore.
Tabella 4-1. Range di programmazione per Agilent E3640A/42A/44A
E3640A
Range
Range
0 - 8V/3A
0 - 20V/1.5A
Tensione Range di
programmazione
Valore MAX
Valore MIN
Valore DEFault
Valore *RST
Corrente Range di
programmazione
Valore MAX
Valore MIN
Valore DEFault
Valore *RST
da 0 V
a 8.24V
8.24 V
da 0 V
a 20.60 V
20.60 V
E3642A
Range
Range
0 - 8V/5A
0 - 20V/2.5A
da 0 V
a 8.24V
8.24 V
0V
0V
0V
da 0 A
a 3.09 A
3.09 A
da 0 V
a 20.60 V
20.60 V
E3644A
Range
Range
0 - 8V/8A
0 - 20V/4A
da 0 V
a 8.24V
8.24 V
da 0 V
a 20.60 V
20.60 V
0V
0V
0V
da 0 A
a 1.545 A
1.545 A
da 0 A
a 5.15 A
5.15 A
0A
3A
0V
0V
0V
da 0 A
a 2.575 A
2.575 A
da 0 A
a 8.24 A
8.24 A
0A
1.5 A
5A
3.00 A
da 0 A
a 4.12 A
4.12 A
0A
2.5 A
8A
5.00 A
4A
8.00 A
Tabella 4-2. Range di programmazione per Agilent E3641A/43A/45A
E3641A
Range 0 Range 0 35V/0.8A
60V/0.5A
Tensione Range di
programmazione
Valore MAX
Valore MIN
Valore DEFault
Valore *RST
Corrente Range di
programmazione
Valore MAX
Valore MIN
Valore DEFault
Valore *RST
76
da 0 V a
36.05V
36.05 V
da 0 V a 61.8
V
61.8 V
0V
0V
0V
da 0 A
da 0 A
a 0.824 A
a 0.515 A
0.824 A
0.515 A
0A
0.8 A
0.5 A
0.8 A
E3643A
Range 0 Range 0 35V/1.4A
60V/0.8A
da 0 V a
36.05V
36.05 V
da 0 V a 61.8
V
61.8 V
0V
0V
0V
da 0 A
da 0 A
a 1.442 A
a 0.824 A
1.442 A
0.824 A
0A
1.4 A
0.8 A
1.4 A
E3645A
Range 0 Range 0 35V/2.2A
60V/1.3A
da 0 V a
36.05V
36.05 V
da 0 V
a 61.8 V
61.8 V
0V
0V
0V
da 0 A
a 2.266 A
2.266 A
da 0 A
a 1.339 A
1.339 A
0A
2.2 A
1.3 A
2.2 A
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Capitolo 4 Interfaccia remota
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Comandi di sistema
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Capitolo 4 Interfaccia remota
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Capitolo 4 Interfaccia remota
Comandi per la configurazione dell’interfaccia
Comandi per la configurazione dell’interfaccia
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92
Capitolo 4 Interfaccia remota
I registri di stato SCPI
I registri di stato SCPI
7XWWLJOLVWUXPHQWL6&3,LPSOHPHQWDQRLUHJLVWULGLVWDWRDOORVWHVVRPRGR
,OVLVWHPDGLVWDWRUHJLVWUDGLYHUVHFRQGL]LRQLGHJOLVWUXPHQWLLQWUHJUXSSLGL
UHJLVWULE\WHGLVWDWRHYHQWRVWDQGDUGHVWDWRFRQVXOWDELOH,OUHJLVWURGHLE\WH
GLVWDWRULHSLORJDLQIRUPD]LRQLGLDOWROLYHOORULSRUWDWHQHJOLDOWULJUXSSLGL
UHJLVWUL1HOOHSDJLQHVHJXHQWLqULSRUWDWRXQRVFKHPDFKHLOOXVWUDLOVLVWHPD
GLVWDWR6&3,XWLOL]]DWRGDOO
DOLPHQWDWRUH
Descrizione di un registro degli eventi
3HUUHJLVWURGHJOLHYHQWLVLLQWHQGHXQUHJLVWURGLVRODOHWWXUDFKHULSRUWD
GHWHUPLQDWHFRQGL]LRQLGHOO
DOLPHQWDWRUH,ELWGLXQUHJLVWURGHJOLHYHQWL
YHQJRQRUHJLVWUDWLLQODWFK8QDYROWDLPSRVWDWRXQELWGLHYHQWRLVXFFHVVLYL
FDPELDPHQWLGLVWDWRYHQJRQRLJQRUDWL,ELWGLXQUHJLVWURGHJOLHYHQWLYHQJRQR
FDQFHOODWLDXWRPDWLFDPHQWHGDO
LQWHUURJD]LRQHGLTXHOUHJLVWURFRPHDG
HVHPSLR*ESR?RSTAT:QUES:EVEN?RSSXUHVHVLLQYLDLOFRPDQGR
*CLS&OHDUVWDWXV&DQFHOODVWDWR8QULSULVWLQR*RSTRXQDQQXOODPHQWR
HIIHWWXDWRVXXQDSHULIHULFDQRQFDQFHOODQRLELWGHLUHJLVWULGHJOLHYHQWL
/
LQWHUURJD]LRQHGLXQUHJLVWURGHJOLHYHQWLUHVWLWXLVFHXQYDORUHGHFLPDOHFKH
FRUULVSRQGHDOODVRPPDSRQGHUDWDELQDULDGLWXWWLLELWSUHVHQWLQHOUHJLVWUR
Descrizione di un registro di abilitazione
,OUHJLVWURGLDELOLWD]LRQHGHILQLVFHTXDOLELWSUHVHQWLQHOUHODWLYRUHJLVWURGHJOL
HYHQWLYHQJRQRUDJJUXSSDWLORJLFDPHQWHLQEDVHDOO
RSHUDWRUH25SHUIRUPDUH
XQVLQJRORELWGLULHSLORJR,UHJLVWULGLDELOLWD]LRQHVRQRVLDOHJJLELOLFKH
VFULYLELOLHQRQYHQJRQRFDQFHOODWLGDXQ
LQWHUURJD]LRQH,OFRPDQGR*CLS
&OHDUVWDWXV&DQFHOODVWDWRQRQFDQFHOODLUHJLVWULGLDELOLWD]LRQHSXU
FDQFHOODQGRLELWFRQWHQXWLQHLUHJLVWULGHJOLHYHQWL3HUDELOLWDUHLELWGLXQ
UHJLVWURGLDELOLWD]LRQHqQHFHVVDULRLPPHWWHUHXQYDORUHGHFLPDOHFKH
FRUULVSRQGDDOODVRPPDSRQGHUDWDELQDULDGLWXWWLLELWFKHVLGHVLGHUDDELOLWDUH
QHOUHJLVWUR
93
4
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Sistema stato SCPI
QUEStionable Status
Event Register
Voltage
Current
Not Used
Not Used
Temperature
Not Used
Not Used
Not Used
Not Used
Overvoltage
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Enable Registers
0
1
Output Buffer
4
"OR"
9
Status Byte
Summary Register
STAT:QUES?
STAT:QUES:ENAB <value>
STAT:QUES:ENAB?
Operation Complete
Query Error
Device Depenent Error
Execution Error
Command Error
Power On
OPC
Not Used
QYE
DDE
EXE
CME
Not Used
PON
*ESR?
94
Enable Registers
Enable Register
"OR"
3
4
5
6
Serial Poll(SPOLL)
*STB?
Standard Event
Event Register
Not Used
Not Used
Not Used
QUES
MAV
ESB
RQS
Not Used
*SRE <value>
*SRE?
0
"OR"
2
3
4
5
7
*ESE <value>
*ESE?
Peso binario
20 = 1
21 = 2
22 = 4
23 = 8
24 = 16
25 = 32
26 = 64
27 = 128
28 = 256
29 = 512
210 = 1024
211 = 2048
212 = 4096
213 = 8192
214 = 16384
215 = 32768
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Il registro Questionable Status
,OUHJLVWUR4XHVWLRQDEOH6WDWXVIRUQLVFHLQIRUPD]LRQLULJXDUGRDOOHUHJROD]LRQL
GHOODWHQVLRQHHGHOODFRUUHQWH4XDQGRODWHQVLRQHSHUGHUHJROD]LRQHYLHQH
PHPRUL]]DWRLOELWHTXDQGRODFRUUHQWHSHUGHUHJROD]LRQHYLHQHPHPRUL]]DWR
LOELW$GHVHPSLRVHO
DOLPHQWDWRUHSDVVDPRPHQWDQHDPHQWHDOODPRGDOLWj
DFRUUHQWHFRVWDQWHPHQWUHqXWLOL]]DWRFRPHVRUJHQWHGLWHQVLRQHPRGDOLWjD
WHQVLRQHFRVWDQWHYLHQHPHPRUL]]DWRLOELWSHUVHJQDODUHODPDQFDWD
UHJROD]LRQHGHOODWHQVLRQHGLXVFLWD
4XHVWRUHJLVWURFRPSUHQGHDQFKHLQIRUPD]LRQLUHODWLYHDOO
DWWLYD]LRQHGHOOH
FRQGL]LRQLGLVXUULVFDOGDPHQWRHVRYUDWHQVLRQH,OELWVHJQDODXQDFRQGL]LRQH
GLVXUULVFDOGDPHQWRGHOODYHQWRODLOELWVHJQDODORVFDWWRGHOFLUFXLWRGL
SURWH]LRQHGDVRYUDWHQVLRQH3HUOHJJHUHLOUHJLVWURLQYLDUHLOFRPDQGR
STATus:QUEStionable?
Tabella 4-3. Definizioni dei bit – Registro Questionable Status
Bit
Valore
decimale
0
Tensione
1
Alimentatore sempre in modalità a corrente costante.
1
Corrente
2
Alimentatore sempre in modalità a tensione costante.
Non utilizzato
0
Sempre impostato a 0.
Surriscaldamento
16
Guasto della ventola.
Sempre impostato a 0.
2-3
4
Definizione
5-8
Non utilizzato
0
9
Sovratensione
512
Scatto del circuito di protezione da sovratensione.
10
Over Current
1024
The overcurrent protection circuit has tripped.
11-15 Non utilizzato
0
Sempre impostato a 0.
Il registro Questionable Status Event viene azzerato quando:
‡ 6LHVHJXHLOFRPDQGR*CLS&OHDUVWDWXV&DQFHOODVWDWR
‡ 6LHIIHWWXDXQªLQWHUURJD]LRQHDOUHJLVWURGHJOLHYHQWLFRQLOFRPDQGR
STAT:QUES? 6WDWXV4XHVWLRQDEOH(YHQWUHJLVWHUTXHU\,QWHUURJD]LRQH
UHJLVWURHYHQWRVWDWRFRQVXOWDELOH
$GHVHPSLRLOYDORUHGHFLPDOHULSRUWDWRGRSRO
LQWHUURJD]LRQHGHOORVWDWR
GHOUHJLVWUR4XHVWLRQDEOH(YHQWLQGLFDXQDFRQGL]LRQHGHOODWHPSHUDWXUD
FRQVXOWDELOH
Il registro Questionable Status Enable viene azzerato quando:
• 6LHVHJXHLOFRPDQGRSTAT:QUES:ENAB 0
95
4
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Il registro Standard Event
,OUHJLVWUR6WDQGDUG(YHQWULSRUWDLVHJXHQWLWLSLGLHYHQWLVWUXPHQWDOLHUURUL
ULOHYDWLDOO
DFFHQVLRQHHUURULQHOODVLQWDVVLRQHOO
HVHFX]LRQHGHLFRPDQGL
HUURULGHOWHVWDXWRPDWLFRRGLFDOLEUD]LRQHHUURULGLLQWHUURJD]LRQHR
QHOO
HVHFX]LRQHGLXQFRPDQGR*OPC$OFXQHRWXWWHTXHVWHFRQGL]LRQLSRVVRQR
HVVHUHULSRUWDWHQHOO
(6%(YHQW6XPPDU\%LWELWGLULHSLORJRGHJOLHYHQWLELW
VWDQGDUGGHOUHJLVWUR6WDWXV%\WHDWWUDYHUVRLOUHJLVWURGLDELOLWD]LRQHHQDEOH
UHJLVWHU3HULPSRVWDUHODPDVFKHUDGHOUHJLVWURGLDELOLWD]LRQHLPPHWWHUHQHO
UHJLVWURXQYDORUHGHFLPDOHPHGLDQWHLOFRPDQGR*ESE(YHQW6WDWXV(QDEOH
$ELOLWD]LRQHVWDWRHYHQWR
8QDFRQGL]LRQHGLHUURUHELWRGHOUHJLVWUR6WDQGDUG(YHQW
UHJLVWUHUjVHPSUHXQRRSLHUURULQHOODFRGDGHJOLHUURULGHOO
DOLPHQWD
WRUH/HJJHUHODFRGDGHJOLHUURULXWLOL]]DQGRLOFRPDQGRSYST:ERR?
Tabella 4-4. Definizioni dei bit – Registro Standard Event
Bit
0
OPC
1
Non utilizzato
2
QYE
3
4
5
Valore
decimale
1
Operation Complete (Operazione completata). Tutti i
comandi precedenti e comprendenti un comando *OPC
sono stati eseguiti.
0
Sempre impostato a 0.
4
Query Error (Errore di interrogazione). L'alimentatore
ha cercato di leggere il buffer di uscita ma l'ha trovato
vuoto oppure la ricezione di una nuova riga di comando
ha preceduto la lettura dell'interrogazione precedente o
ancora i buffer d'ingresso e d'uscita sono pieni.
8
Device Error (Errore di periferica). Si è verificato un
errore durante il test automatico o un errore di
calibrazione (vedere numeri errore da 601 a 750 nel
capitolo 5).
16
Execution Error (Errore di esecuzione). Si è verificato
un errore di esecuzione (vedere i numeri di errore
da -211 a -224 nel capitolo 5).
32
Command Error (Errore di comando). Si è verificato un
errore nella sintassi dei comandi (vedere numeri di
errore da -101 a -178 nel capitolo 5).
0
Sempre impostato a 0.
DDE
EXE
CME
6
Non utilizzato
7
PON
128
96
Definizione
Power On (Accensione). L'alimentatore è stato spento
e dall'ultima volta il registro degli eventi è stato letto
o cancellato.
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Il registro Standard Event viene azzerato quando:
‡ 6LHVHJXHLOFRPDQGR*CLS&OHDUVWDWXV&DQFHOODVWDWR
‡ 6LULFKLHGHLOUHJLVWURGHJOLHYHQWLFRQLOFRPDQGR*ESR?(YHQW6WDWXV
UHJLVWHU5HJLVWURHYHQWRVWDWR
$GHVHPSLRVHqVWDWRULFKLHVWRORVWDWRGHOUHJLVWUR6WDQGDUG(YHQWHVLVRQR
YHULILFDWHFRQGL]LRQLGL4<(''(HG(;(YHUUjULSRUWDWR
Il registro Standard Event Enable viene azzerato quando:
‡ 6LHVHJXHLOFRPDQGR*ESE 0
‡ 6LDFFHQGHO
DOLPHQWDWRUHGRSRDYHUORFRQILJXUDWRFRQLOFRPDQGR*PSC 1
‡ 6HVLqFRQILJXUDWRO
DOLPHQWDWRUHFRQLOFRPDQGR*PSC 0LOUHJLVWURGL
DELOLWD]LRQH(QDEOH5HJLVWHUQRQYLHQHD]]HUDWRDOO
DFFHQVLRQH
Il registro Status Byte
,OUHJLVWURULHSLORJDWLYR6WDWXV%\WHULSRUWDOHFRQGL]LRQLSUHVHQWLLQDOWULUHJLVWUL
GLVWDWR,GDWLG
LQWHUURJD]LRQHFKHDWWHQGRQRQHOEXIIHUGLXVFLWD
GHOO
DOLPHQWDWRUHYHQJRQRLPPHGLDWDPHQWHULSRUWDWLQHOELW0HVVDJH
$YDLODEOHPHVVDJJLRGLVSRQLELOHELWGHOUHJLVWUR6WDWXV%\WH,ELWGHO
UHJLVWURULHSLORJDWLYRQRQYHQJRQRUHJLVWUDWLLQODWFK$]]HUDQGRXQUHJLVWUR
GHJOLHYHQWLVLFDQFHOODQRDQFKHLELWFRUULVSRQGHQWLGHOUHJLVWURULHSLORJDWLYR
6WDWXV%\WH6HVLOHJJRQRWXWWLLPHVVDJJLGHOEXIIHUGLXVFLWDFRPSUHVHWXWWH
OHLQWHUURJD]LRQLLQDWWHVDLOELWGHOPHVVDJJLRGLVSRQLELOHYLHQHFDQFHOODWR
Tabella 4-5. Definizioni di bit – Registro riepilogativo Status Byte
Bit
0-2
3
Non utilizzato
Valore
decimale
0
Sempre impostato a 0.
8
Uno o più bit vengono memorizzati nel registro stato
consultabile (i bit devono essere "abilitati" nel registro
di abilitazione).
QUES
4
MAV
5
ESB
Definizione
16
I dati sono disponibili nel buffer di uscita
dell'alimentatore.
32
Uno o più bit vengono memorizzati nel registro eventi
standard (i bit devono essere "abilitati" nel registro di
abilitazione).
6
RQS
64
L'alimentatore richiede assistenza (indagine seriale).
7
Non utilizzato
0
Sempre impostato a 0.
97
4
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Il registro riepilogativo Status Byte viene azzerato quando:
‡ 6LHVHJXHLOFRPDQGR*CLS&OHDUVWDWXV&DQFHOODVWDWR
‡ 6HVLULFKLHGHLOUHJLVWUR6WDQGDUG(YHQWFRPDQGR*ESR?VLFDQFHOOHUjVROR
LOELWGHOUHJLVWURGLULHSLORJRE\WHGLVWDWR
$GHVHPSLRVHqVWDWRULFKLHVWRORVWDWRGHOUHJLVWUR6WDWXV%\WHHVLVRQR
YHULILFDWHFRQGL]LRQLGL48(6H0$9YLHQHULSRUWDWR
Il registro Status Byte Enable (Request Service, richiesta di assistenza) viene
azzerato quando:
‡ 6LHVHJXHLOFRPDQGR*SRE 0
‡ 6LDFFHQGHO
DOLPHQWDWRUHGRSRDYHUORFRQILJXUDWRFRQLOFRPDQGR*PSC 1
‡ 6HVLqFRQILJXUDWRO
DOLPHQWDWRUHFRQLOFRPDQGR*PSC 0LOUHJLVWURGL
DELOLWD]LRQHQRQYLHQHD]]HUDWRDOO
DFFHQVLRQH
Uso della richiesta di assistenza (SRQ) e del POLL seriale
3HUXWLOL]]DUHTXHVWDIXQ]LRQDOLWjqQHFHVVDULRFRQILJXUDUHLOFRQWUROOHU
GHOEXVDIILQFKpULVSRQGDDOO
LQWHUUXSWGHOODULFKLHVWDGLDVVLVWHQ]D654
GHOO
,(((8WLOL]]DUHLOUHJLVWUR6WDWXV%\WH(QDEOHFRPDQGR*SRESHU
VHOH]LRQDUHLOELWULHSLORJDWLYRFKHPHPRUL]]DLOVHJQDOHGLULFKLHVWDDVVLVWHQ]D
,(((DEDVVROLYHOOR4XDQGRLOELWULFKLHVWDGLDVVLVWHQ]DYLHQH
PHPRUL]]DWRQHOUHJLVWURE\WHGLVWDWRYLHQHLQYLDWRDXWRPDWLFDPHQWHDO
FRQWUROOHUGHOEXVXQPHVVDJJLRGLLQWHUUXSWGLULFKLHVWDGLDVVLVWHQ]D
GHOO
,(((,OFRQWUROOHUGHOEXVSXzDOORUDLQWHUURJDUHJOLVWUXPHQWLVXO
EXVSHULGHQWLILFDUHTXDOHGLTXHVWLKDSUHVHQWDWRODULFKLHVWDGLDVVLVWHQ]D
ORVWUXPHQWRFRQLOELWPHPRUL]]DWRQHOVXR6WDWXV%\WH
,OELWUHODWLYRDOODULFKLHVWDGLDVVLVWHQ]DYLHQHFDQFHOODWRVRORTXDQGRVL
OHJJHOR6WDWXV%\WHPHGLDQWHSROOVHULDOHGHOO
,(((RTXDQGRVLOHJJHLO
UHJLVWURGHJOLHYHQWLLOFXLELWGLULHSLORJRVWDGHWHUPLQDQGRODULFKLHVWDGL
DVVLVWHQ]D
3HUOHJJHUHLOUHJLVWURGLULHSLORJRGHOE\WHGLVWDWRLQYLDUHLOPHVVDJJLRGLSROO
VHULDOHGHOO
,(((/
LQWHUURJD]LRQHGHOUHJLVWURGLULHSLORJRULSRUWHUjXQ
YDORUHGHFLPDOHFRUULVSRQGHQWHDOODVRPPDSRQGHUDWDELQDULDGHLELWSUHVHQWL
QHOUHJLVWUR/
LQGDJLQHVHULDOHFDQFHOOHUjDXWRPDWLFDPHQWHLOELWULFKLHVWDGL
DVVLVWHQ]DQHOUHJLVWURGLULHSLORJRE\WHGLVWDWR*OLDOWULELWQRQVDUDQQR
LQWHUHVVDWLGDOO
RSHUD]LRQH,OSROOVHULDOHQRQLQIOXLUjVXOODYHORFLWjGL
HODERUD]LRQHGHOORVWUXPHQWR
98
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Attenzione
Lo standard IEEE-488 non assicura la sincronizzazione tra il programma del
controller del bus e lo strumento. Utilizzare il comando *OPC? per garantire il
completamento dei comandi inviati allo strumento. Se si effettua un poll seriale prima
che *RST,*CLS, o altri comandi siano stati completati, è probabile che vengano
riportate condizioni precedenti.
Uso del comando *STB? per la lettura dello Status Byte
,OFRPDQGR*STB?qVLPLOHDXQSROOVHULDOHPDYLHQHHODERUDWRFRPHTXDOVLDVL
DOWURFRPDQGRGHOORVWUXPHQWR,OFRPDQGR*STB?UHVWLWXLVFHLOPHGHVLPR
ULVXOWDWRGLXQSROOVHULDOHPDLOELWGLULFKLHVWDGLDVVLVWHQ]DELWQRQYLHQH
FDQFHOODWR
,OFRPDQGR*STB?QRQYLHQHJHVWLWRDXWRPDWLFDPHQWHGDOO
KDUGZDUH
GHOO
LQWHUIDFFLDGHOEXV,(((HYHUUjHVHJXLWRVRORGRSRLOFRPSOHWDPHQWR
GHLFRPDQGLSUHFHGHQWL/HRSHUD]LRQLGHOSROOVHULDOHQRQVRQRSRVVLELOL
TXDQGRVLXWLOL]]DLOFRPDQGR*STB?/
HVHFX]LRQHGHOFRPDQGR*STB?QRQ
D]]HUDLOUHJLVWURULHSLORJDWLYR6WDWXV%\WH
4
Uso del bit di messaggio disponibile (MAV)
½SRVVLELOHXWLOL]]DUHLOELW§PHVVDJJLRGLVSRQLELOH¨GHOE\WHGLVWDWRELW
SHUGHWHUPLQDUHLOPRPHQWRLQFXLLGDWLVDUDQQRGLVSRQLELOLDOODOHWWXUDQHO
FRQWUROOHUGHOEXV'LFRQVHJXHQ]DO
DOLPHQWDWRUHFDQFHOOHUjLOELWVRORGRSR
ODOHWWXUDGLWXWWLLPHVVDJJLGDOEXIIHUGLXVFLWD
Interruzione del controller del bus tramite SRQ
Inviare un messaggio di azzeramento del dispositivo per cancellare
il buffer di uscita dell'alimentatore (ad esempio, CLEAR 705).
Azzerare i registri degli eventi con il comando *CLS.
Impostare le maschere del registro di abilitazione. Eseguire il comando*ESE
per impostare il registro Standard Event e il comando *SRE per il registro
Status Byte.
Inviare il comando *OPC? e immettere il risultato per assicurare
la sincronizzazione.
Abilitare l'interruzione SRQ del controller del bus IEEE-488.
99
Capitolo 4 Interfaccia remota
I registri di stato SCPI
Determinazione del completamento di una sequenza di comandi
Inviare un messaggio di azzeramento del dispositivo per cancellare il buffer
di uscita dell'alimentatore (ad esempio, CLEAR 705).
Azzerare i registri degli eventi con il comando *CLS (assenza stato).
Abilitare il bit operazione completata (bit 0) nel registro Standard Event
eseguendo il comando *ESE 1.
Inviare il comando *OPC? e immettere il risultato per assicurare la
sincronizzazione.
Eseguire la stringa di comando necessaria per programmare la configurazione
desiderata e quindi eseguire il comando *OPC come comando finale. Una volta
completata la sequenza di comando, il bit operazione completata (bit 0) viene
memorizzato nel registro Standard Event.
Utilizzare un poll seriale per individuare il momento in cui il bit 5 (evento
Byte. È anche possibile configurare l'alimentatore per un interrupt SRQ
inviando il comando *SRE 32 (Status Byte enable register, Registro di
abilitazione byte di stato, bit 5).
Uso del comando *OPC per la segnalazione della presenza
di dati nel buffer di uscita
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Capitolo 4 Interfaccia remota
Comandi per il report dello stato
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102
Capitolo 4 Interfaccia remota
Introduzione al linguaggio SCPI
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103
Capitolo 4 Interfaccia remota
Introduzione al linguaggio SCPI
Formato dei comandi utilizzato in questo manuale
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104
Capitolo 4 Interfaccia remota
Introduzione al linguaggio SCPI
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105
Capitolo 4 Interfaccia remota
Introduzione al linguaggio SCPI
Impostazione dei parametri di interrogazione
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106
Capitolo 4 Interfaccia remota
Introduzione al linguaggio SCPI
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DISP:TEXT <stringa tra virgolette>
107
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Capitolo 4 Interfaccia remota
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108
Capitolo 4 Interfaccia remota
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109
Capitolo 4 Interfaccia remota
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110
Capitolo 4 Interfaccia remota
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Capitolo 4 Interfaccia remota
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(win95 R winnt)\lib\msc RSSXUHLQ c:\vxipnp\win (win95 R winnt)\include
Diode.c
/*Diode.C.Questo programma dimostrativo applica 11 valori della tensione e misura
la corrispondente risposta in corrente. Il programma stampa il valore di tensione
e la risposta in corrente in una tabella. Si osservi che l'indirizzo dell'interfaccia
GPIB dell’alimentatore è quello preimpostato in fabbrica.*/
#include
#include
#include
#include
#include
#include
<visa.h>
<stdio.h>
<string.h>
<time.h>
<conio.h>
<stdlib.h>
ViSession
defaultRM;
ViSession
power_supply;
int
bGPIB = 1;
long
ErrorStatus;
char
commandString[256];
char
ReadBuffer[256];
void
void
void
void
/*
/*
/*
/*
Id del gestore di risorsa
Identifica l'alimentatore
Imposta il numero a 0 se si utilizza RS-232
Codice di errore VISA
*/
*/
*/
*/
delay(clock_t wait);
SendSCPI(char* pString);
CheckError(char* pMessage);
OpenPort();
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127
6
Capitolo 6 Programmi applicativi
Programma dimostrativo in C e C++
void main()
{
double
char
double
voltage;
Buffer[256];
current;
/* Valore della tensione inviato all'alimentatore */
/* Stringa restituita dall'alimentatore
*/
/* Valore dell'uscita di corrente dell'alimentatore */
OpenPort();
/* Richiede l'id dell'alimentatore, legge la risposta e la stampa */
sprintf(Buffer,"*IDN?");
SendSCPI(Buffer);
printf("Instrument identification string:\n
%s\n\n",Buffer);
SendSCPI("*RST");
SendSCPI("Current 2");
SendSCPI("Output on");
printf("Voltage
/* Imposta la condizione di acceso
*/
/* Imposta il limite di corrente a 2A */
/* Attiva l'uscita
*/
Current\n\n");
/* Stampa l'intestazione*/
/*Varia la tensione da 0,6 a 0,8 volt con passo di 0,02 */
for(voltage = 0.6; voltage <=0.8001; voltage +=0.02)
{
printf("%.3f",voltage);
/* Visualizza la tensione del diodo*/
/* Imposta la tensione d'uscita */
ErrorStatus = viPrintf(power_supply,"Volt %f\n",voltage);
if(!bGPIB)
delay(500);/* attesa di 500 msec per la porta RS-232*/
CheckError("Unable to set voltage");
/* Misura la corrente in uscita */
ErrorStatus = viPrintf(power_supply,"Measure:Current?\n");
CheckError("Unable to write device");
delay(500);
/* Attende 500 msec per l'uscita */
/* Ottiene la lettura */
ErrorStatus = viScanf(power_supply,"%lf",&current);
CheckError("Unable to read voltage");
printf("%6.4f\n",current);
/* Visualizza la corrente del diodo */
}
SendSCPI("Output off");
/* Disattiva l'uscita */
ClosePort();
}
/*
/*
/*
/*
Costruisce l'indirizzo richiesto per avviare la comunicazione con la scheda GPIB o RS-232.*/
Il formato dell'indirizzo è il seguente: "GPIB0::5::INSTR".
*/
Per utilizzare l'interfaccia RS-232 sulla porta COM1, modificare l'indirizzo */
nel formato "ASRL1::INSTR"
*/
void OpenPort()
{
char
GPIB_Address[3];
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128
Capitolo 6 Programmi applicativi
Programma dimostrativo in C e C++
char
char
COM_Address[2];
VISA_address[40];
if(bGPIB)
strcpy(GPIB_Address,"5");
else
strcpy(COM_Address,"1");
/* Indirizzo VISA completo inviato alla scheda
*/
/* Seleziona l'indirizzo GPIB tra 0 e 30*/
/* Imposta il numero a 2 se si utilizza la porta COM2*/
if(bGPIB){ /* Se viene usato l'indirizzo GPIB 7, utilizza il formato "GPIB::7::INSTR" */
strcpy(VISA_address,"GPIB::");
strcat(VISA_address,GPIB_Address);
strcat(VISA_address,"::INSTR");
}
else{ /* Se viene usata la porta COM2, utilizza il formato di indirizzo "ASRL2::INSTR */
strcpy(VISA_address,"ASRL");
strcat(VISA_address,COM_Address);
strcat(VISA_address,"::INSTR");
}
/* Apre la sessione di comunicazione con l'alimentatore */
ErrorStatus = viOpenDefaultRM(&defaultRM);
ErrorStatus = viOpen(defaultRM,VISA_address,0,0,&power_supply);
CheckError("Unable to open port");
if(!bGPIB)
SendSCPI("System:Remote");
}
void
SendSCPI(char* pString)
{
char* pdest;
strcpy(commandString,pString);
strcat(commandString,"\n");
ErrorStatus = viPrintf(power_supply,commandString);
CheckError("Can’t Write to Driver");
if (bGPIB == 0)
delay(1000);
/* Espresso in millisecondi*/
pdest = strchr(commandString, ’?’);
/* Ricerca il comando di interrogazione
if( pdest != NULL ){
ErrorStatus = viScanf(power_supply,"%s",&ReadBuffer);
CheckError("Can’t Read From Driver");
strcpy(pString,ReadBuffer);
}
6
*/
}
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129
Capitolo 6 Programmi applicativi
Programma dimostrativo in C e C++
void ClosePort()
{
/* Chiude la porta di comunicazione */
viClose(power_supply);
viClose(defaultRM);
}
void CheckError(char* pMessage)
{
if (ErrorStatus < VI_SUCCESS){
printf("\n %s",pMessage);
ClosePort();
exit(0);
}
}
void delay(clock_t wait)
{
clock_t goal;
goal = wait + clock();
while( goal > clock() ) ;
}
Fine del programma
130
Capitolo 6 Programmi applicativi
Programma dimostrativo per Excel 97
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Nota
Per utilizzare l'esempio con Windows 3.1, è necessario modificare le dichiarazioni
in cima al modulo. Modificare 'visa32.dll' in 'visa.dll' in tutte le dichiarazioni.
132
Capitolo 6 Programmi applicativi
Programma dimostrativo per Excel 97
Macro Diode
'"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
' Questa è la prima subroutine ad essere eseguita. Modificare la routine per adattarla
' alle proprie necessità. Per modificare l'indirizzo GPIB, passare al modulo OpenPort, e
' modificare la variabile GPIB_Address = "5” con l'indirizzo GPIB address.
' Per modificare la porta RS-232, passare al modulo OpenPort, e modificare la
' variabile COM_Address = "1" con la porta richiesta
'"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
Global defaultRM As Long
' Id del gestore di risorsa per GPIB VISA
Global power_supply As Long ' Identifica l'alimentatore
Global bGPIB As Boolean
' Flag che indica l'utilizzo di GPIB o RS-232
Global ErrorStatus As Long ' Codice di errore VISA
Sub Diode_Click()
Range("B5:B15").ClearContents
Dim I As Integer
bGPIB = True
' Per utilizzare la RS-232, impostare bGPIB su False
OpenPort
SendSCPI "*RST"
' Imposta la condizione di accesso
SendSCPI "Output on" ' Attiva l'uscita
For I = 5 To 15
SendSCPI "Volt " & Str$(Cells(I, 1))
Cells(I, 2) = Val(SendSCPI("Meas:Current?"))
Next I
SendSCPI "Output off" ' Disattiva l'uscita
ClosePort
End Sub
Private Function OpenPort()
Dim GPIB_Address As String
Dim COM_Address As String
If bGPIB Then
GPIB_Address = "5"
' Seleziona l'indirizzo GPIB tra 0 e 30
Else
COM_Address = "1"
' Imposta il numero a 2 per la porta COM2
End If
ErrorStatus = viOpenDefaultRM(defaultRM)
' Apre la sessione VISA
If bGPIB Then
ErrorStatus = viOpen(defaultRM, "GPIB0::" & GPIB_Address & "::INSTR", _
0, 1000, power_supply)
Else
ErrorStatus = viOpen(defaultRM, "ASRL" & COM_Address & "::INSTR", _
0, 1000, power_supply)
SendSCPI "System:Remote"
End If
CheckError "Unable to open port"
End Function
Continua alla pagina successiva
133
6
Capitolo 6 Programmi applicativi
Programma dimostrativo per Excel 97
'*********************************************************************************
' Questa routine invia una stringa di comando SCPI alla porta GPIB o RS-232.
' Se il comando contiene un punto interrogativo, la risposta viene letta
e ne viene riportato il valore
'**********************************************************************************
Private Function SendSCPI(command As String) As string
Dim commandString As String
' Comando inviato all'alimentatore
Dim ReturnString As String
' Conserva la stringa da riportare in uscita
Dim crlfpos As Integer
' Posizione dei nul in Read Buffer
Dim ReadBuffer As String * 512
' Buffer utilizzato per la stringa riportata
Dim actual As Long
' Numero di caratteri inviati/riportati
commandString = command & Chr$(10)
' Lo strumento è alimentato in linea
ErrorStatus = viWrite(power_supply, ByVal commandString, Len(commandString), _
actual)
CheckError "Can’t Write to Device"
If bGPIB = False Then
delay 0.5
End If
If InStr(commandString, "?") Then
ErrorStatus = viRead(power_supply, ByVal ReadBuffer, 512, actual)
CheckError "Can’t Read From Device"
ReturnString = ReadBuffer
crlfpos = InStr(ReturnString, Chr$(0))
If crlfpos Then
ReturnString = Left(ReturnString, crlfpos - 1)
End If
SendSCPI = ReturnString
End If
End Function
Private Function ClosePort()
ErrorStatus = viClose(power_supply)
ErrorStatus = viClose(defaultRM)
End Function
Private Function delay(delay_time As Single)
Dim Finish As Single
Finish = Timer + delay_time
Do
Loop Until Finish <= Timer
End Function
Private Function CheckError(ErrorMessage As String)
If ErrorStatus < VI_SUCCESS Then
Cells(5, 2) = ErrorMessage
ClosePort
End
End If
End Function
Fine del programma
134
Capitolo 6 Programmi applicativi
Programma dimostrativo per Excel 97
Dichiarazione per Windows 3.1
'****************************************************************************************
' Questa routine richiede il file VISA.dll che in genere si trova nella directory
' c:\windows\system. Ulteriori dichiarazioni per VISA.DLL si trovano solitamente nel file
' visa.bas nella directory c:\vxipnp\win31\include del proprio PC. La routine utilizza
' la Libreria VTL per inviare comandi a un dispositivo. Una descrizione di tali comandi
e ulteriori comandi VTL sono contenuti nel manuale Agilent Technologies Visa
Transition Library book
' Numero parte Agilent E2094-90002.
'****************************************************************************************
Declare Function viOpenDefaultRM Lib "VISA.DLL" Alias "#141" (viDefaultRM As Long) As Long
Declare Function viOpen Lib "VISA.DLL" Alias "#131" (ByVal viDefaultRM As Long, ByVal viDesc
As String, ByVal mode As Long, ByVal timeout As Long, vi As Long) As Long
Declare Function viClose Lib "VISA.DLL" Alias "#132" (ByVal vi As Long) As Long
Declare Function viRead Lib "VISA.DLL" Alias "#256" (ByVal vi As Long, ByVal Buffer As
String, ByVal count As Long, retCount As Long) As Long
Declare Function viWrite Lib "VISA.DLL" Alias "#257" (ByVal vi As Long, ByVal Buffer As
String, ByVal count As Long, retCount As Long) As Long
Declare Function viClear Lib "VISA.DLL" Alias "#260" (ByVal vi As Long) As Long
Dichiarazione per Windows 95/NT 4.0
'****************************************************************************************
' Ulteriori dichiarazioni per VISA32.DLL sono in genere contenute nel file
visa32.bas nella directory
' c:\vxipnp\win95(or winNT)\include del proprio PC. Consultare il manuale VISA
'***************************************************************************************
Declare Function viOpenDefaultRM Lib "visa32.dll" (instrumentHandle As Long) As Long
Declare Function viOpen Lib "visa32.dll" (ByVal instrumentHandle As Long, _
ByVal viDesc As String, ByVal mode As Long, ByVal timeout As Long, _
vi As Long) As Long
Declare Function viClose Lib "visa32.dll" (ByVal vi As Long) As Long
Declare Function viWrite Lib "visa32.dll" (ByVal vi As Long, ByVal Buffer As String, _
ByVal count As Long, retCount As Long) As Long
Declare Function viRead Lib "visa32.dll" (ByVal vi As Long, ByVal Buffer As String, _
ByVal count As Long, retCount As Long) As Long
135
6
Capitolo 6 Programmi applicativi
Programma dimostrativo per Excel 97
136
7
Descrizione funzionale
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139
7
Capitolo 7 Descrizione funzionale
Cenni preliminari sul funzionamento dell’alimentatore
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ISOLATION
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DISPLAY
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l'isolamento ottico
140
+
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Capitolo 7 Descrizione funzionale
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7
Capitolo 7 Descrizione funzionale
Caratteristiche di uscita
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Figura 7-7. Velocità della risposta – Programmazione verso l'alto
(pieno carico)
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146
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147
7
Capitolo 7 Descrizione funzionale
Programmazione a distanza
148
8
Specifiche
Specifiche
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150
Capitolo 8 Specifiche
Specifiche relative alle prestazioni
Specifiche relative alle prestazioni
Tabella 8-1 Specifiche relative alle prestazioni
Parametro
E3640A
Valori d'uscita nominali Range basso da 0 a +8 V/
(@ 0 °C - 40 °C)
da 0 a 3 A
Range alto
Accuratezza di
programmazione[1]
E3641A
E3642A
E3643A
da 0 a +35 V/ da 0 a +8 V/
da 0 a 0,8 A da 0 a 5 A
<0,05% + 10 mV
<0,2% + 10 mA
Accuratezza readback[1] Tensione
<0,05% + 5 mV
<0,15% + 5 mA
12 mesi (su GPIB e
RS-232 o su pannello frontale
rispetto all'uscita attuale (@
25 °C ± 5 °C), ±(% di uscita
+ offset)
Corrente
E3645A
da 0 a +35 V/
da 0 a 2,2 A
da 0 a +20 V/ da 0 a +60 V/ da 0 a +20 V/ da 0 a +60 V/ da 0 a +20 V/ da 0 a +60 V/
da 0 a 1,5 A da 0 a 0,5 A da 0 a 2,5 A da 0 a 0,8 A da 0 a 4 A
da 0 a 1,3 A
Tensione
Corrente
12 mesi (@ 25 °C ± 5 °C),
±(% di uscita + offset)
E3644A
da 0 a +35 V/ da 0 a +8 V/
da 0 a 1,4 A da 0 a 8 A
Tensione in <0,5 mV rms <1 mV rms e <0,5 mV rms e <1 mV rms e <0,5mV rms e <1 mV rms e
Ripple e rumore
(con uscite non messe a terra
modalità
e 5 mVp-p
8 mVp-p
5 mVp-p
8 mVp-p
5 mVp-p
8 mVp-p
o con uno dei terminali di uscita normale
messo a terra, da 20 Hz
Corrente in
<4 mA rms
a 20 MHz)
modalità
normale
Corrente in
modalità
comune
Regolazione del carico, Tensione
<1,5 uA rms
<0,01% + 3 mV
<0,01% + 250 uA
±(% di uscita + offset)
Corrente
Regolazione della rete,
Tensione
<0,01% + 3 mV
Corrente
<0,01% + 250 uA
Risoluzione
della programmazione
Tensione
Corrente
<5 mV
<1 mA
Risoluzione
del readback
Tensione
<2 mV
Corrente
Tensione
<1 mA
10 mV
Corrente
1 mA
±(% di uscita + offset)
Risoluzione
del pannello frontale
>@
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VHQ]DFDULFRHFDOLEUD]LRQHDƒ&
151
8
Capitolo 8 Specifiche
Specifiche relative alle prestazioni
Tempo di risposta ai transitori
/
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DXQDYDULD]LRQHGHOODFRUUHQWHG
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HYLFHYHUVD
ITempo di assestamento
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Accuratezza di OVP‘GLXVFLWDRIIVHW
9
Tempo di attivazione 7HPSRPHGLRSHUFKpO
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152
Capitolo 8 Specifiche
Caratteristiche supplementari
Caratteristiche supplementari
Tabella 8-2. Caratteristiche supplementari
Parametro
Range
Range di
programmazione basso
dell'uscita
Range
(valori massimi
programmabili)
E3640A
E3641A
E3642A
E3643A
E3644A
E3645A
da 0 a +8,24 V/ da 0 a +36,05 V/ da 0 a +8,24 V/ da 0 a +36,05 V/ da 0 a +8,24 V/ da 0 a +36,05 V/
da 0 a 3,09 A da 0 a 0,824 A da 0 a 5,15 A da 0 a 1,442 A da 0 a 8,24 A da 0 a 2,266 A
alto
da 0 a +20,6 V/ da 0 a +61,8V/ da 0 a +20,6V/ da 0 a +61,8V/ da 0 a +20,6 V/ da 0 a +61,8V/
da 0 a 1,545 A da 0 a 0,515 A da 0 a 2,575 A da 0 a 0,824 A da 0 a 4,12 A da 0 a 1,339 A
OVP
da 1 V a 22 V
da 1 V a 66 V
da 1 V a 22 V
da 1 V a 66 V
da 1 V a 22 V
da 1 V a 66 V
Capacità di rilevamento a distanza
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7HQVLRQHGHOFDULFR
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Coefficiente della temperatura, ±(% di uscita + offset)
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Stabilità, ±(% di uscita + offset)
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153
8
Capitolo 8 Specifiche
Caratteristiche supplementari
Sovraccarico tensione in uscita
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DWWLYD]LRQHHODGLVDWWLYD]LRQHGHOO
DOLPHQWD]LRQH$&LOVRYUDFFDULFR
LQXVFLWDQRQVXSHUDLOYDORUHGL9VHLOFRQWUROORLQXVFLWDYLHQHLPSRVWDWRD
PHQRGL96HLOFRQWUROORLQXVFLWDYLHQHLPSRVWDWRD9RSLQRQYLqDOFXQ
VRYUDFFDULFR
Linguaggio di programmazione
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Memorizzazione dello stato
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XWHQWH
Intervallo di calibrazione consigliato
DQQR
Isolamento del terminale d'uscita (massimo, dalla messa a terra
del telaio)
‘9GFGXUDQWHLOFROOHJDPHQWRGLFRQGXWWRULGLFRUWRFLUFXLWRSULYL
GªLVRODPHQWRWUDLWHUPLQDOLGªXVFLWDHGLULOHYDPHQWRHWUDLWHUPLQDOL
GªXVFLWDHGLULOHYDPHQWR
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WHUPLQDOLGªXVFLWDHGLULOHYDPHQWRHWUDLWHUPLQDOLGªXVFLWDHGL
ULOHYDPHQWR
Valori nominali entrata AC (selezionabile tramite due switch posti sulla
scheda PC)
VWDQGDUG 9DF‘GDD+]
RS]LRQH(9DF‘GDD+]
RS]LRQH(9DF‘GDD+]
Potenza massima in entrata
E3640A
105 VA
E3641A
105 VA
E3642A
205 VA
Raffreddamento
5DIIUHGGDWRWUDPLWHYHQWROD
Temperatura operativa
'DDƒ&SHUXVFLWDDSLHQRUHJLPH
154
E3643A
175 VA
E3644A
300 VA
E3645A
270 VA
Capitolo 8 Specifiche
Caratteristiche supplementari
Temperatura di immagazzinamento
7HPSHUDWXUDDPELHQWHGDDƒ&
Condizioni ambientali
3URJHWWDWRSHUO
XWLOL]]RLQDPELHQWLFKLXVLLQXQDFDWHJRULDGLLQVWDOOD]LRQH,,
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WDVVRGLXPLGLWjUHODWLYDPDVVLPRGHOHSHUDOWLWXGLQLQRQVXSHULRULDL
PHWUL
Peso
E3640A
E3641A
E3642A
E3643A
E3644A
E3645A
Netto
5,3 Kg
5,2 Kg
6,3 Kg
6,2 Kg
6,6 Kg
6,7 Kg
Lordo
con imballo
7,2 Kg
7,1 Kg
8,2 Kg
8,1 Kg
8,5 Kg
8,6 Kg
Dimensioni*
PP/[PP+[PP3
9HGHUHOHLQIRUPD]LRQLGHWWDJOLDWHULSRUWDWHGLVHJXLWRHQHOODSDJLQD
VXFFHVVLYD
Figura 8-1. Dimensioni degli alimentatori Agilent E3640A/41A/42A/43A/
44A/45A
155
8
Capitolo 8 Specifiche
Caratteristiche supplementari
Figura 8-2. Dimensioni per montaggio a rack
156
Appendix
Service Information
Service Information
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158
Service
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Appendix Service Information
Operating Checklist
Operating Checklist
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159
Appendix Service Information
Types of Service Available
Types of Service Available
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Appendix Service Information
Repacking for Shipment
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161
Appendix Service Information
Electrostatic Discharge (ESD) Precautions
Electrostatic Discharge (ESD) Precautions
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Surface Mount Repair
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To Replace the Power-Line Fuse
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162
Service
Information
Appendix Service Information
Troubleshooting Hints
Troubleshooting Hints
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Unit Reports Errors 740 to 750
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Unit Fails Self-Test
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Bias Supplies Problems
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Table A-1 Bias Supplies Voltages
Bias Supply
Minimum
Maximum
Check At
+5V Floating
+4.75 V
+5.25 V
U110 pin 2
-5.1V Floating
-4.75 V
-5.25 V
Anode of CR114
+15V Floating
+14.25 V
+15.75 V
Anode of CR104
-15V Floating
-14.25 V
-15.75 V
Cathode of CR105
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163
Appendix Service Information
Self-Test Procedures
Self-Test Procedures
Power-On Self-Test
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Complete Self-Test
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164
Service
Information
Appendix Service Information
Self-Test Procedures
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165
Appendix Service Information
General Disassembly
General Disassembly
166
Service
Information
Appendix Service Information
5HFRPPHQGHG7HVW(TXLSPHQW
Recommended Test Equipment
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XVHG
Table A-2 Recommended Test Equipment
Instrument
Requirements
Recommended Model
Use
GPIB controller
Full GPIB or RS-232
capabilities
Agilent 82341C interface card Programming and readback
or equivalent
accuracy
Oscilloscope
100 MHz with 20 MHz
bandwidth
Agilent 54602B
RMS Voltmeter
20 Hz to 20 MHz
Cable (BNC to BNC)
50 ohm, 9 inch (23 Cm)
Agilent 10502A or 10503A if Measure rms ripple & noise
the 10502A is not available
(CV PARD, CC PARD)
BNC (Female)
Bulkhead Receptacle
Isolated Ground.
Nominal impedance: 50 Ohm
Pomona Model 5148
Measure rms ripple & noise
(CV PARD, CC PARD)
Split Ferrites
For use with round cable
Steward Co. 28A2029-0A0
Noise coupling reduction
Digital Voltmeter
Resolution: 0.1 mV
Accuracy: 0.01%
Agilent 34401A
Measure dc voltages
Electronic Load
Voltage Range: 240 Vdc
Current Range: 10 Adc
Open and Short Switches
Transient On/Off
Agilent 60503B
Measure load and line
regulations and transient
response time.
Resistive Loads (RL)
(2.7 Ω, 150 W/13.5 Ω, 150 W)1 (25 Ω, 300 W/75 Ω, 300 W)5 Measure ripple and noise
(43.8 Ω, 300 W/120 Ω, 300 W)2 (15.9Ω, 300W/46.2Ω, 300W)6
(1.6 Ω, 300 W/8.0 Ω, 300 W)3
(1.0 Ω, 300 W/5.0 Ω, 300 W)4
Display transient response
and ripple & noise waveform
Measure rms ripple & noise
Current monitoring
(0.01 Ω, 0.1%)*
Resistor (Shunt) - RM1
ISOTEK Co. Model: A-H or
equivalent
Constant current test setup
Current monitoring
(0.2 Ω/250 :, 0.1%)*
Resistor (Shunt) - RM2
ISOTEK Co. Model: RUG-Z
or equivalent
Measure current rms ripple &
noise
* To find the accurate resistance, it is recommended to use a current monitoring resistor after calibration.
1E3640A
model, 2E3641A model, 3E3642A model, 4E3644A, 5E3643A, 6E3645A model.
167
Appendix Service Information
Test Considerations
Test Considerations
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Caution
The tests should be performed by qualified personnel. During performance
verification tests, hazardous voltages may be present at the outputs of the power
supply.
Operation Verification and Performance Tests
Operation Verification Tests
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Performance Tests
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168
Service
Information
Appendix Service Information
Measurement Techniques
Measurement Techniques
Setup for Most Tests
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DVM,
Scope, or
RMS
Figure A-1 Performance Verification Test Setup
Current-Monitoring Resistor
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169
Appendix Service Information
Measurement Techniques
General Measurement Techniques
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[Front Panel (Side View)]
TO LOAD OR
CURRENT
RESISTOR
TO MONITORING
DEVICE
(Rear Panel)
Figure A-2 Front/Rear Panel Terminal Connections
Electronic Load
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Programming
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170
Service
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Appendix Service Information
Constant Voltage (CV) Verifications
Constant Voltage (CV) Verifications
Constant Voltage Test Setup
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Table A-3 Verification Programming Values
Model
Low voltage
range
High voltage
range
Model
Low voltage
range
High voltage
range
E3640A
8V/3A
20V/1.5A
E3643A
35V/1.4A
60V/0.8A
E3641A
35V/0.8A
60V/0.5A
E3644A
8V/8A
20V/4A
E3642A
8V/5A
20V/2.5A
E3645A
35V/2.2A
60V/1.3A
Voltage Programming and Readback Accuracy
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‚
For E3640A model, and see 7DEOH$for other models
171
Appendix Service Information
Constant Voltage (CV) Verifications
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*For E3640A/42A/44A models. **For E3641A/43A/45A models.
‚For E3640A model, and see 7DEOH$for other models
172
Service
Information
Appendix Service Information
Constant Voltage (CV) Verifications
CV Source effect (Line Regulation)
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*For E3640A/42A/44A models. **For E3641A/43A/45A models.
‚
For E3640A model, and see 7DEOH$for other models
173
Appendix Service Information
Constant Voltage (CV) Verifications
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Note
For better measurement result, it is recommended to make the connection between
the BNC receptacle and the output terminals shorter as much as possible, and to use
the recommended split ferrites with the cable (BNC to BNC) as shown above.
*For E3640A/42A/44A models. **For E3641A/43A/45A models.
‚For E3640A model, and see 7DEOH$for other models.
´For E3640A model, and see 7DEOH$for other models.
174
Service
Information
Appendix Service Information
Constant Voltage (CV) Verifications
Load Transient Response Time
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Figure A-4 Transient Response Time
‚For
E3640A model, and see 7DEOH$for other models
175
Appendix Service Information
Constant Current (CC) Verifications
Constant Current (CC) Verifications
Constant Current Test Setup
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‚
For E3640A model, and see 7DEOH$for other models
176
Service
Information
Appendix Service Information
Constant Current (CC) Verifications
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E3641A
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E3642A
E3643A
E3644A
E3644A
5 A ± 20 mA
5 A ± 20 mA
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(IO ± 9.5 mA)
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E3642A
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(IO ± 17 mA)
(IO ± 8.3 mA)
CC Load Effect (Load Regulation)
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‚
For E3640A model, and see 7DEOH$for other models
177
Appendix Service Information
Constant Current (CC) Verifications
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E3641A
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E3640A
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0.55 mA
0.33 mA
0.75 mA
0.39 mA
1.05 mA
0.47 mA
‚
For E3640A model, and see 7DEOH$for other models
178
Service
Information
Appendix Service Information
Constant Current (CC) Verifications
CC PARD (Ripple and Noise)
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Note:
For better measurement result, it is recommended to make the connection between
the BNC receptacle and the output terminals shorter as much as possible, and to use
the recommended split ferrites with the cable (BNC to BNC) as shown above.
‚
For E3640A model, and see 7DEOH$for other models
179
Appendix Service Information
Common Mode Current Noise
Common Mode Current Noise
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‚For
180
E3640A model, and see 7DEOH$for other models
Service
Information
Appendix Service Information
Performance Test Record for Your Power Supply
Performance Test Record for Your Power Supply
CV Performance Test Record
Test Description
Models
CV Programming Accuracy
@ 0 volts (DVM reading)
CV Readback Accuracy
@ 0 volts
Actual Result
Specifications
Upper Limit
Lower Limit
all
+0.0100 V
-0.0100 V
all
DVM +0.0050 V
DVM -0.0050 V
CV Programming Accuracy
@ Full Scale (DVM reading)
E3640A/42A/44A
+20.0200 V
+19.9800 V
E3641A/43A/45A
+60.0400 V
+59.9600 V
CV Readback Accuracy
@ Full Scale
E3640A/42A/44A
DVM + 0.0150 V
DVM - 0.0150 V
E3641A/43A/45A
DVM + 0.0350 V
DVM - 0.0350 V
CV Load Effect (Load
Regulation)
E3640A/42A/44A
Maximum change: < 5 mV
E3641A/43A/45A
Maximum change: < 9 mV
CV Source Effect (Line
Regulation)
E3640A/42A/44A
Maximum change: < 5 mV
E3641A/43A/45A
Maximum change: < 9 mV
CV PARD (Normal mode)
E3640A/42A/44A
< 5 mVp-p / 0.5 mVrms
E3641A/43A/45A
< 8 mVp-p / 1 mVrms
all
< 50 µsec
Load Transient Response
Time
181
Appendix Service Information
Performance Test Record for Your Power Supply
CC Performance Test Record
Test Description
Models
Actual
Result
Specifications
Upper Limit
Lower Limit
CC Programming Accuracy
@ 0 amps (IO)
all
+0.0100 A
-0.0100 A
CC Readback Accuracy @ 0 amps
all
IO + 0.0050 A
IO - 0.0050 A
(E3640A)
3.01600 A
2.9840 A
(E3641A)
0.8116 A
0.7884 A
CC Programming Accuracy
@ Full Scale (IO)
CC Readback Accuracy @ Full Scale
CC Load Effect (Load Regulation)
CC Source Effect (Line Regulation)
(E3642A)
5.02 A
4.98 A
(E3643A)
1.4128 A
1.3872 A
(E3644A)
8.026
7.974 A
(E3645A)
2.2144
2.1856 A
(E3640A)
IO + 0.0095 A
IO - 0.0095 A
(E3641A)
IO + 0.0062 A
IO - 0.0062 A
(E3642A)
IO + 0.0125 A
IO - 0.0125 A
(E3643A)
IO + 0.0071 A
IO - 0.0071 A
(E3644A)
IO + 0.0170 A
IO - 0.0170 A
(E3645A)
IO + 0.0083 A
IO - 0.0083 A
(E3640A)
Maximum change: < (0.55 mA)
(E3641A)
Maximum change: < (0.33 mA)
(E3642A)
Maximum change: < (0.75 mA)
(E3643A)
Maximum change: < (0.39 mA)
(E3644A)
Maximum change: < (1.05 mA)
(E3645A)
Maximum change: < (0.47 mA)
(E3640A)
Maximum change: < (0.55 mA)
(E3641A)
Maximum change: < (0.33 mA)
(E3642A)
Maximum change: < (0.75 mA)
(E3643A)
Maximum change: < (0.39 mA)
(E3644A)
Maximum change: < (1.05 mA)
(E3645A)
Maximum change: < (0.47 mA)
CC PARD (Normal mode)
all
< 4 mA rms
CC PARD (Common mode)
all
< 1.5 µA rms
182
Service
Information
Appendix Service Information
Calibration Reference
Calibration Reference
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183
Appendix Service Information
General Calibration/Adjustment Procedure
General Calibration/Adjustment Procedure
Note
The power supply should be calibrated after 1-hour warm-up with no load connected.
And Perform the voltage calibration prior to the OVP calibration.
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Table 3-2 Parameters for Calibration
Calibration
Parameter
Voltage/
Current
Calibration Point
mnemonic
V LO
VOLTAGE CAL
Voltage
V MI
V HI
OVP CAL
OVP
None
I LO
CURRENT CAL
Current
I MI
I HI
184
Service
Information
Appendix Service Information
General Calibration/Adjustment Procedure
Front Panel Voltage and Current Calibration
Note
Before attempting to calibrate the power supply, you must unsecure the power supply,
and disconnect all loads from the power supply and connect a DVM across the output
terminals. See “Cenni preliminari sulla calibrazione”, starting on page 62 to
unsecure.
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Appendix Service Information
General Calibration/Adjustment Procedure
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Appendix Service Information
General Calibration/Adjustment Procedure
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General Calibration/Adjustment Procedure
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188
Service
Information
Appendix Service Information
Calibration Record for Your Power Supply
Calibration Record for Your Power Supply
Step
Calibration Description
1
Turn on the calibration mode by holding down the "Calibrate" key as you
turn on the power supply until you hear a long beep.
2
Unsecure the power supply if secured. (See page 62)
3
Press "Calibrate" key to move down menu to voltage calibration menu.
A "VOLTAGE CAL" is displayed. Press "Calibrate" key to select the
low voltage calibration point.
Measurement
Mode (DVM)
Supply Being
Adjusted
Voltage
Calibration
4
A low voltage calibration point is displayed. Enter the DVM reading by
using the knob and resolution keys. Press "Calibrate" key to save the
changes and select the middle calibration point.
V
5
A middle voltage calibration point is displayed. Enter the DVM reading
by using the knob and resolution selection keys. Press "Calibrate" key to
save the changes and select the high calibration point.
V
Middle voltage
calibration
6
A high voltage calibration point is displayed. Enter the DVM reading by
using the knob and resolution selection keys. Press "Calibrate" key to
save the changes and select the OVP calibration.
V
High voltage
calibration
"OVP CAL" is displayed. Press "Calibrate" key to run the overvoltage
calibration. A "CALIBRATING" is displayed to indicate that the
calibration is progressing.
V
7
Low voltage
calibration
OVP calibration
8
Connect shunt resistor (0.01 Ω) across the output terminals. And press
"Calibrate" key to select the current calibration.
9
A low current calibration point is displayed. Enter the computed value
(DVM reading / by shunt resistance) by using the knob and resolution
keys. Press "Calibrate" key to save the changes and select the middle
calibration point.
A
Low current
calibration
10
A middle current calibration point is displayed. Enter the computed value
(DVM reading / by shunt resistance) by using the knob and resolution
keys. Press "Calibrate" key to save the changes and select the high
calibration point.
A
Middle current
calibration
11
A high current calibration point is displayed. Enter the computed value
(DVM reading / by shunt resistance) by using the knob and resolution
keys. Press "Calibrate" key to save the changes
A
High current
calibration
13
Turn off the "Power" switch to exit the calibration menu.
Current calibration
Exit CAL MODE
189
Appendix Service Information
Calibration Error Messages
Calibration Error Messages
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701
702
703
704
705
706
708
712
713
714
717
718
740
741
743
744
745
746
747
748
749
754
755
190
Error Messages
Cal security disabled by jumper
Cal secured
Invalid secure code
Secure code too long
Cal aborted
Cal value out of range
Cal output disabled
Bad DAC cal data
Bad readback cal data
Bad OVP cal data
Cal OVP status enabled
Gain out of range for gain error correction
Cal checksum failed, secure state
Cal checksum failed, string data
Cal checksum failed, store/recall data in location 1
Cal checksum failed, store/recall data in location 2
Cal checksum failed, store/recall data in location 3
Cal checksum failed, DAC cal constants
Cal checksum failed, readback cal constants
Cal checksum failed, GPIB address
Cal checksum failed, internal data
Cal checksum failed, store/recall data in location 4
Cal checksum failed, store/recall data in location 5
Service
Information
Appendix Service Information
Replaceable Parts
Replaceable Parts
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To Order Replaceable Parts
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191
Appendix Service Information
Replaceable Parts
E3640A/41A/42A/43A/44A/45A Power Supply Assembly
Part Description
Reference Agilent Part
Q’ty
Designator
Number
Mfr.
code
Mfr. Part Number
01542
FN1/2
F100-F102
0699-2715
3
FUSIBLE RES 1 OHM 5% 1/2W
S102
3101-2976
1
SW-PB DPST 6A 250V
04486
NE18-2A-EE-SP
8120-8767
1
POWER CORD FOR STD/0E9 GY-062 or
22631
SP-305+IS-14
8120-8768
1
POWER CORD FOR 0E3 GY-062
22631
SP-022+IS-14
(E3640A/41A)
2110-1069
1
FUSE 1.5A T 125V FOR 100 AND 115 Vac
01542
51S015L
(E3640A/41A)
2110-0457
1
FUSE 1A T 250V FOR 230 Vac
01542
50T010H
(E3642A/43A)
2110-1070
1
FUSE 2.5A T 125V FOR 100 AND 115 Vac
01542
51S025L
(E3642A/43A)
2110-0457
1
FUSE 1A T 250V FOR 230 Vac
01542
50T010H
(E3644A/45A)
2110-1071
1
FUSE 3.15A T 125V FOR 100 AND 115 Vac
01542
51S032L
(E3644A/45A)
2110-1068
1
FUSE 2A 50 T 250V FOR 230 Vac
02805
50T020H
34401-45011
1
HANDLE-FRONT
02362
34401-45011
34401-86011
1
BUMPER-FRONT
02362
34401-86011
34401-86012
1
BUMPER-REAR
02362
34401-86012
34401-88304
1
REAR BEZEL
02362
34401-88304
E3640-40002
1
PUSH ROD
01542
E3640-40002
E3640-40003
1
KNOB
01542
E3640-40003
E3640-60030
1
PROGRAMMED ROM (IC 2M-BIT OTP 150NS CMOS) 01542
E3640-60030
E3640-60011
1
FRONT FRAME ASSEMBLY FOR E3640A
01542
E3640-60011
E3641-60011
1
FRONT FRAME ASSEMBLY FOR E3641A
01542
E3641-60011
E3642-60011
1
FRONT FRAME ASSEMBLY FOR E3642A
01542
E3642-60011
E3644-60011
1
FRONT FRAME ASSEMBLY FOR E3644A
01542
E3644-60011
E3640-60013
1
TRANSFORMER ASSEMBLY FOR E3640A
01542
E3640-60013
E3641-60013
1
TRANSFORMER ASSEMBLY FOR E3641A
01542
E3641-60013
E3642-60013
1
TRANSFORMER ASSEMBLY FOR E3642A
01542
E3642-60013
E3644-60013
1
TRANSFORMER ASSEMBLY FOR E3644A
01542
E3644-60013
E3640-60016
1
TERMINAL BLOCK ASSEMBLY
01542
E3640-60016
E3644-60006
1
DC Fan ASSEMBLY
01542
E3644-60006
192
Service
Information
Appendix Service Information
Replaceable Parts
Manufacturer’s List
Mfr. code
Manufacturer’s name
Manufacturer’s Address
01542
Agilent DIV 01 SAN JOSE COMPONENTS
SAN JOSE, CA, USA
02805
COOPER INDUSTRIES INC
HOUSTON, TX, USA
02362
Agilent DIV 09 LID COMPONENTS
LOVELAND, CA, USA
22631
I SHENG ELECTRIC WIRE & CABLE CO
KUEI-SHAN, TW
193
Appendix Service Information
Replaceable Parts
194
Indice
Per ulteriori informazioni relative al funzionamento dell'alimentatore,
chiamare il numero 1-800-452-4824 negli Stati Uniti oppure contattare
l'ufficio vendite Agilent Technologies più vicino.
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