Salicru EQUINOX2 3001-S User Manual page 53

Do not use terminals of different manufacturers or of
different types, other than those included in the
accessory pack. SALICRU shall not be held liable for any
Attention
form of damage caused by the use of unauthorised terminals.
Moisture and dust can damage the inverter; check that
the cable gland is tight enough during installation.
The warranty will be void if the inverter is damaged as
Attention
a result of an improperly installed cable gland.
5.3.1. General connection diagram.
CT
L
N
ID
IGA
GND
ID
Fus.
MCB
SPD
Fig. 15. General connection.
In the following sections, the different possible connections of the
inverter will be explained in detail.
5.3.2. External earthing connection.
Do not connect the neutral N wire as a protective
earthing wire to the inverter housing. This may cause
Danger electric shock.
An optimal earthing connection can withstand resist surge
discharges and improve EMI performance. Inverters must
Attention be properly earthed.
For systems with a single inverter, the PE wire must be
earthed.
USER MANUAL
PIAs
Inverter
Fus.
MCB
SPD
PV
For a multi-inverter system, all PE cables from the
inverters must be connected to the same copper earthing
bar to ensure equipotential bonding.
Steps for connecting the terminal to earth:
1.
The external earthing connection terminal is located on the
lower right side of the inverter.
2.
Fasten the earthing connection terminal to the PE cable with
a suitable tool and lock the earthing connection terminal to
the earthing connection hole on the bottom right side of the
inverter as shown in Fig. 16.
3.
The cross-sectional area of the external earthing wire is 4 mm
Fig. 16. Earthing terminal connection.
5.3.3. Photovoltaic panel connection.
1.
The following must be taken into account when making the
electrical connections to the inverter:
a.
Disconnect the AC switch on the grid side.
b.
The inverter's DC switch must be set to "OFF".
c.
To ensure that the best practices are followed, check that
the photovoltaic panels connected in each string are of the
same model and specifications.
d.
Check that the maximum output voltage of each photovol-
taic string does not exceed the maximum voltage speci-
fied in the table of technical characteristics in the section
"9. Technical features.".
e.
Insert the relevant DC circuit breakers, according to the
following Tab. 7, leaving a minimum distance of 5 meters
from the inverter so that the external protections are
activated first::
.
2
EQX2 SOLAR INVERTERS CONNECTED TO THE GRID
53