Ethernet Connections; Dc Connection - SMA SUNNY TRIPOWER STORAGE 60 Installationsanleitung

2 Installation

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 DC connection

Danger to life due to fire caused by a short circuit.
The inverter cannot disconnect a short circuit current from
the battery. Short-circuit currents can cause fires.
• Install a fuse switch-disconnector and a Class J
UL-listed thermal fuse between the inverter and the
battery. In the event of an error, they are able to
securely switch off the short-circuit current of the
battery.
28 STPS60-IA-xx-12
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.
• Only connect batteries with reverse polarity
detection to the inverter.
The battery is floating, with both the (+) and (-) conductors
connected to the DC inputs of the inverter. Neither
conductor is connected to ground.
Switching on the DC load-break switch at the same time
as the battery results in irreparable defects of the inverter
and will void the warranty.
• Ensure that the battery is switched off before
activating the load-break switch.
The DC power can be disconnected with the
inverter-integrated DC load-break switch.
Do NOT connect DC to ground!
Danger due to ground fault on DC side during
operation
Due to the transform erless topology of the product, the
occurrence of ground faults on DC side during operation
can lead to irreparable damage. Damages to the product
due to a faulty or damaged DC installation are not
covered by warranty. The product is equipped with a
protective device that checks whether a ground fault is
present during the starting sequence. The product is not
protected during operation.
• Ensure that the DC installation is carried out correctly
and no ground fault occurs during operation.
SMA Solar Technology AG
Installation Manual