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000062BG
5 - Installation
G
rounding configuration of the DC inputs
The grounding of the inputs
is negative configuration by default
.
For the correct operation, some photovoltaic panels require the connec-
tion of the potential of the positive terminal to the earth terminal, or to
have both of the input poles floating in regards to ground potential.
In order to achieve this, it is possible to vary the default configuration,
moving the connector installed in a03 (
negative grounding
) to a04
(
positive grounding
) or a02 (
floating configuration
).
The configuration of the grounding of the inputs must be done before any connections or
testing takes place.
Incorrect configuration may cause damage to the system and photovoltaic panels!
I
nput connection to the PV generator (DC side)
After undergoing preliminary checks and as such having verified that
there are no problems in the photovoltaic system, you can connect the
inverter to the inputs.
To prevent electrocution hazards, all the connect operations must be carried out the
DC dis
-
connect switch 07 or the external disconnect switch open and locked.
For the string connections it is necessary to use the
quick fit connectors
(multicontact or weidmüller) located on the bottom of the mechanism.
The maximum numbers of input strings which can be connected
is 2
.
Connect all the strings included in the design of the system and always
check the tightness of the connectors.
If some of the string inputs should not be used you must proceed to verify
the presence of covers on DC input connectors
10
and then install them
should they be absent. This operation is necessary for the tightness of
the inverter and to avoid damaging the free connector that could be used
at a later date.
The two pairs of DC input connectors
10
are internally related to a single
input channel, so there are no preferences on the connectors to be used
in the case of installation of a single string.
W3
W2
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
a02
a04
a03
RS485 CARD
J24
RS
485(B
)
17
1
18
J15
1
J16
2
J6
1
RS485
T/R
T/R
RTN
LNK
J14
BT1
CR2032
WIND REM
WT
WT
R
R
RS4
85(
A)
J13
ALARM
N.C.
N.O.
C
TERM. 120
ON
OFF
S3
17
MEMORY CARD
J4
18
K4
J23
S1
1
S2
2
N
1
L
2
MOV3
3
MOV4
J25
RED
GFI
GFI
BLACK
W4
W3
WHITE
GND_MODE
W2
GRID
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
RS485 CARD
J24
RS
485(B
)
17
1
18
J15
1
J16
2
J6
1
RS485
T/R
T/R
RTN
LNK
J14
BT1
CR2032
WIND REM
WT
WT
R
R
RS4
85(
A)
J13
ALARM
N.C.
N.O.
C
TERM. 120
ON
OFF
S3
17
MEMORY CARD
J4
18
K4
J23
S1
1
S2
2
N
1
L
2
MOV3
3
MOV4
J25
RED
GFI
GFI
BLACK
W4
W3
WHITE
GND_MODE
W2
GRID
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
10
07
10
RS485 CARD
J24
RS
485(B
)
17
1
18
J15
1
J16
2
J6
1
RS485
T/R
T/R
RTN
LNK
J14
BT1
CR2032
WIND REM
WT
WT
R
R
RS4
85(
A)
J13
ALARM
N.C.
N.O.
C
TERM. 120
ON
OFF
S3
17
MEMORY CARD
J4
18
K4
J23
S1
1
S2
2
N
1
L
2
MOV3
3
MOV4
J25
RED
GFI
GFI
BLACK
W4
W3
WHITE
GND_MODE
W2
GRID
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
RS485 CARD
J24
RS
485(B
)
17
1
18
J15
1
J16
2
J6
1
RS485
T/R
T/R
RTN
LNK
J14
BT1
CR2032
WIND REM
WT
WT
R
R
RS4
85(
A)
J13
ALARM
N.C.
N.O.
C
TERM. 120
ON
OFF
S3
17
MEMORY CARD
J4
18
K4
J23
S1
1
S2
2
N
1
L
2
MOV3
3
MOV4
J25
RED
GFI
GFI
BLACK
W4
W3
WHITE
GND_MODE
W2
GRID
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
10
07
10
Standard version
S Version