Xylem Fixed speed booster sets programming manual/Electronic control board SM30 User Manual
Page 29

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29
Prima di intervenire sul gruppo scollegare l'alimentazione elettrica e verificare che non vi siano
componenti idraulici in pressione.
Guasto
Causa
Rimedio
1.
Alimentazione elettrica scollegata Collegare l'alimentazione
1.
Scheda
spenta
2.
Fusibile bruciato nel quadro.
Verificare la tensione 24 Vac di
alimentazione nel quadro elettrico, a
valle del trasformatore degli ausiliari.
Sostituire il fusibile bruciato
1.
Programmazione errata.
Programmare i valori di start/stop.
Controllare le temporizzazioni.
2.
Avviamenti e
arresti
frequenti
2.
Regolazione errata del
pressostato o soglie del sensore.
Aumentare la pressione differenziale o
la pressione di stop
3.
SENS.
DIFFERENTI
1.
Sensori differenti collegati su AI1
e AI2.
Verificare che, con RETROAZIONE
impostata su AI1/AI2, i sensori di
pressione/livello collegati su AI1 e AI2
siano dello stesso tipo e i valori letti
siano congruenti.
4.
ERRORE
FLASH /
ERRORE
FERRORAM
1.
Errori di perdita dati sulle
memorie interne della scheda.
Riprogrammare i valori dei parametri
congruenti con il tipo di impianto.
1
1
1
13
3
3
3 DISMISSIONE
DISMISSIONE
DISMISSIONE
DISMISSIONE
Rispettare le regole e le leggi vigenti per lo smaltimento dei rifiuti, anche per l'imballo.
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