6 Electrical Connection
SMA Solar Technology AG
Operating manual
61
SI44M-80H-13-BE-en-15
Cable requirements:
☐ Conductor type: copper wire
☐ Conductor cross-section: 0.2 mm² to 2.5 mm²
Procedure:
1. Break through a suitable location in the cable feed-through plate with a sharp object.
2. Strip 7 mm of the cable insulation.
3. Lead the cable through the hole in the cable feed-through plate into the Sunny Island.
4.
WARNING
Danger to life from electric shock due to incorrect insulation
In the case of faulty insulation, supposedly de-energized parts or cables may be live. Touching live components
or cables can result in death or serious injury due to electric shock.
• When connecting cables to
Relay 1
and
Relay 2
, always insert a silicone tube.
• Always connect the cables to
Relay 1
and
Relay 2
as described in the following.
5. Cut a silicon tube to the length of the cable in the Sunny Island.
6. Pull the silicone tube over the cable. In this way, the cable is double-insulated.
7. Lead the cable into the Sunny Island making sure that it does not touch any data cables.
8. Connect the insulated conductors to the 3-pole terminal blocks included in the scope of delivery (torque: 0.5 Nm
to 0.6 Nm, blade width: 1 mm). Observe the correct assignment of the connections when doing so.
9. Ensure that the conductors are plugged completely into the terminals up to the insulation.
10. In accordance with the labeling, plug the 3-pole terminal block into the connection
Relay1
or
Relay2
on the
inverter until the terminal block audibly snaps into place.
6.6.6
Connecting BatVtgOut, DigIn, BatTMP and BatCur
Always connect the cables to connections
BatVtgOut
,
DigIn
,
BatTMP
and
BatCur
as follows.
Information on the connection BatVtgOut
The entire DC voltage range of the connections
DC+
and
DC-
is mapped at the connection
BatVtgOut
.
The connection
BatVtgOut
is current-limited and protected against short circuit.
Additionally required material (not included in the scope of delivery):
☐ Suitable bootlace ferrules if using stranded wire
Requirements:
☐ Conductor type: copper wire
☐ Conductor cross-section: 0.2 mm² to 2.5 mm²
