Sungrow SG30CX Kurzanleitung Zur Installation Seite 7

Additional
A NOTICE
• Since the inverter is a transformerless
the PV string can be grounded.
• There are two terminals.
• Apply paint to the grounding
AC Connection
A NOTICE
• Before connecting the inverter to the grid, ensure the grid voltage and frequency comp y with requirements.
• Disconnect the AC-side circuit breaker and prevent it from inadvertent reconnection,
• Observe the pin assignment OfAC terminal block. f a phase wire is connected to the " PE" terminal, it may permanently
damage the inverter.
• Please avoid squeezing the cable insulation
operation of the inverter.
• During AC cable connection, the cables inside the lower part Of the device should be bended to be surplus in ength. n
this way, cable dropping or oosening, which can cause arc or other problems impairing functionality of the device, due to
self-weight Of the cables in case Of land subsidence
• f an aluminium cable is selected, use a copper to aluminium adapter terminal to avoid direct contact between the copper
bar and the aluminium
O
Take out the AC wiring box and loosen the
waterproof conrector. Lead the cable through
the swive nut
Crimp the OT\DT terminal
Grounding Connection
Otherwise,
Use at least one of them to ground
terminal to ensure corrosion
ayer into the AC terminal
cable See user manual for more
Strip the protection
layer
D:40-50mm
DOO-40mm
D:25-30mm
Fixed heat shrink tubing
inverter, neither the negative pole nor the positive pole of
the inverter will not operate
resistance
mproper connection may affect the normal
is avoided
details
layer and insulation
L: 2-3)mm
35 mm
normally,
the inverter.
after connection
4.2-4.5
nsta the heat shrilk tubing and OT/DT terminal
Unfasten the buckle
protective cap
N.m
shrink tubing
OT/DT terminal
and remove the