Ethernet Connections; Pv Connection; External Pv Array Junction Boxes - SMA SUNNY HIGHPOWER PEAK1 Instrucciones De Instalación

SMA Solar Technology AG

2.8 Ethernet Connections

When used outdoors, make sure to use a suitable cable
(see Section 5.6 "Technical Data of the Communication
Interface", page 44). If the cable is very stiff,
an intermediate terminal should be used to achieve greater
flexibility of the cable before it is connected to the inverter.
For some cables, it might be sufficient to remove the hard
outer mantle of the part of the cable inside the inverter
enclosure. In this way, the RJ45 Ethernet connectors
mounted on the printed circuit boards are protected against
excessive stress, which could lead to damages or problems
with the connection.
Procedure:
1. Do not remove the RJ45 connector on the Ethernet
cable.
2. Run the cables through the base of the inverter via
cable glands. See figure 2.20.
3. Cut slice in rubber grommet. Place the grommet in the
gland to ensure proper seal.
4. Plug into the Ethernet connector.
Figure 2.20 Run cables through cable glands

2.9 PV Connection

2.9.1 External PV Array Junction
Boxes
PV strings must be connected to the DC input via an external
PV array junction box. The PV array junction box connects
the PV strings of the PV array and protects the individual
strings against overcurrent with appropriate fuse protection.
INFORMATION
The same number and type of modules must be
connected to all PV strings connected to the PV array
junction box. In addition, all connected modules must
have the same orientation.
Installation Guide
INFORMATION
Observe correct fuse rating. Consult the module
manufacturer's manuals for information on correct
string fuse rating.
INFORMATION
Use a suitable voltage detector that can measure up
to 1000 V DC. Verify the polarity and maximum
voltage of the PV arrays by measuring the PV
open-circuit voltage.
The inverter is protected against short-term reverse
polarity. Not correcting reverse polarity results in
irreparable defects of the inverter and will void the
warranty.
• Make sure that the cables are properly connected to
the inverter so that the inverter can feed in DC input
voltage.
The combined power from the PV array junction box must
be connected to the DC input of the inverter.
PV array is floating, with both the (+) and (-) conductors
connected to the PV inputs of the inverter. Neither
conductor is connected to ground.
The DC power can be disconnected with the
inverter-integrated DC load-break switch.
Do NOT connect PV to ground!
2 Installation
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