-
Connections has to correctly sealed.
- No air entrance is allowed on the suction pipe which is showing a
mounting declivity (2 %) (
see fig. 1
).
- With rigid pipe, avoid the pump to bear the weight of the pipes,
use supports, (
see fig. 1 - 2 - item 7
).
- The diameter of the pipe must never be smaller than the
suction/delivery ports.
- Limit the length of the suction pipe and avoid all features that
cause losses of head (bends, valves, tapers).
When
the
pump
is
under
pressure,
it
is
recommended to connect the non-return valve to
the pump discharge to protect it against hammer blow effects.
The control circuits in the converter are isolated from the
power circuits by single insulation (IEC 664-1).
The installer must ensure that the external control circuits
(e.g.: pressure sensor, external set value…) are isolated against any
human contact.
If the control circuits need to be connected to circuits conforming to
SELV safety requirements, additional insulation must be inserted to
maintain the SELV classification.
5.3 Electric connections
The electric connections and inspections have to be carried
out by a qualified electrician and have to comply with the
relevant local standards.
The electric characteristics (frequency, voltage, nominal current) of
the motor-converter are mentioned on the name plate. Check that
15
CAUTION !
the motor-converter complies with the mains supply used.
The electric protection of the motors is integrated into the converter.
The parameters take into account the characteristics of the pump
and must ensure its protection and the one of the motor.
In case of impedance between earth and neutral point, install a
control/protection system before motor-converter.
Provide a fuse disconnecting switch (type GF) to protect the mains
installation (
fig.1 - 2 - item 11
).
If you have to install a differential circuit-breaker for users
protection, it must have a delay effect. Adjust it according
to the current mentioned on the converter label.
Use power cables conforming with standards
DO NOT FORGET TO CONNECT TO EARTH.
The electric connection of the converter
has to comply with the
schemes of the following table :
A connection error
would damage the converter.
The power cable must never touch the pipe or the pump ;
make sure that it is sheltered from any humidity.
CAUTION !
Risk of material damage.
According to the operating configurations, a
wrong disconnected wire in the connection area
can damage the converter.
- Disconnect at both ends.
- Remove it.
ENGLISH
CAUTION !
CONNECTION TO MAINS SUPPLY
Connect the 3 core cable on the 3 terminals
of the electronic card.
(phase + n earth).
CONNECTION OF INPUTS / OUTPUTS
3 operating mode :
(see chapter 6 : Starting up)
Manual mode :
MODE 1
Mode with pressure regulation :
MODE 2
Mode with external control :
MODE 3
Remark : The standard configuration mode is
either the Mode1-3, or the Mode2 following the
driven mode choose at the orderof the pump.
The change of the converter parameters from
Mode1-3 to Mode2 (or reverse) is carried out
by the programming key, the action of an
after-sales technician is required.
POWER TERMINALS
General protection 20A
CONVERTER
(See FIG. 4 -
item 20)
(See FIG. 3)
wires Ø 2,5mm2
L
N
1
2
3
4
5
6
+
2
4
V
D
C
m
a
x
.
3
0
m
A
7
8
9
10 11 12 13 14
+
1
0
V
D
C
m
a
x
.
3
0
m
A
F
a
ilu
re
re
la
y
fr
e
e
c
o
n
ta
c
t
:
2
5
0
V
-1
A
z
e
ro
V
o
lt
R
e
m
o
te
c
o
n
tr
o
l
PE
DETAILS OF ELECTRICAL CONNECTIONS -
Loosen the screws and remove the converter cover.
Summary of Contents for MULTI-HE Series
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