8
WACS si riserva il diritto di apportare modifiche senza obbligo di preavviso -
WACS reserves the right to make any changes it deems fit without notice
- WACS se reserva el derecho de realizar modificaciones sin la obligación de aviso previo
Collegamento della pompa
La tensione di alimentazione del motore dell’elettropompa installata
deve essere 230V trifase. Le macchine elettriche trifase hanno gen-
eralmente 2 tipi di collegamento come mostrato in Figura 3 e Figura 4
Il collegamento a triangolo è tipicamente quello da utilizzare per lavo-
rare a 230V (tensione Minore). Normalmente i PWM sono completi di
cavo per il collegamento al motore.
Per versioni non corredate di cavo la connessione avviene sul morsetto
“J4” a 4 vie (3 fasi + terra) con serigrafia “PUMP” e con la freccia in us-
cita. Il cavo deve avere una sezione minima di 1.5 mm
2
(vedi figura 5).
L’errato collegamento delle linee di terra ad un morsetto
diverso da quello di terra danneggia irrimediabilmente
tutto l’apparato! L’errato collegamento della linea di alimentazi-
one sui morsetti di uscita destinati al carico danneggia irrimedia-
bilmente tutto l’apparato!
Connection to the power supply line
Connect the PWM to the power supply line. If an extension of the power
cable is required, use a cable with a suitable section to limit possible
overall voltage drops (power supply plus pump) to 3%. In any event,
never use cables with a section of less than 1.5 mm
2
In the case of extensions to the inverter cables, for example for power
supply to submersed electric pumps, if there is electromagnetic distur-
bance, the following is recommended:
1. Check earthing and if necessary add an earthing device in the im
mediate vicinity of the PWM.
2. Embed the cables
3. Use shielded cables
4. Install the mains filters.
The PWM is already provided with current protections. If a thermal
magnetic cut-out is installed on the line, this must have a capacity
suited to the pump used.
The connection of the line to the PWM must include the earth line. The
total earth resistance must not exceed 100 Ohm.
A RCCB should be installed to protect the system, which
should be suitably sized, as follows: Class A, with selec-
tive adjustable current dispersion, protected against inadvertent
activation.
The automatic differential switch must be marked with the fol-
lowing two symbols:
Connection to pump
The power supply voltage of the installed electric pump must be 230 V
three-phase. Three-phase electrical machinery generally has 2 types of
connection, as shown in Figure 3 and Figure 4
2
Morsetto di alimentazione -
Power supply terminal
- Borne de alimentación
3
Collegamento errato
4
Collegamento corretto
3
Incorrect connection
4
Correct connection
