4
a
.
Input
terminals
of
the
PV
inverter
apply
only
to
input
terminals
of
PV
String
;
do
not
connect
any other DC source to the input terminals.
b
.
Before
connecting
PV
modules
,
ensure
that
is
its
voltage
is
within
the
safe
range
;
when
exposed to any sunlight, PV modules can generate high voltage.
c
.
All
electrical
connections
must
meet
the
electrical
standards
of
the
country
or
region
.
d
.
Cables
used
in
electrical
connections
must
be
well
fixed
,
good
insulation
,
and
with
appropriate specification.
a
.
Before
getting
the
permission
of
electrical
power
sector
in
the
country / region
,
the
grid-tied
PV inverter cannot start generate power.
b
.
Follow
the
procedures
of
commissioning
described
in
the
user
manual
when
commissioning
the PV inverter.
c
.
Do
not
touch
any
other
parts
'
surface
except
the
DC
switch
when
the
PV
inverter
is
operating
;
its partial parts will be extremely hot and can cause burns.
Before
installing
the
inverter
,
check
all
electrical
ports
to
ensure
no
damage
and
no
short
circuit
.
Otherwise
personal
casualty
and
/
or
fire
will
occur
.
While
the
inverter
operating
,
high
voltage
can
lead
to
an
electrical
shock
hazard
,
and
even
cause
personal
casualties
.
Therefore
,
operate
the
PV
inverter
strictly
according
to
the
safety
precautions
in
the
user
manual
.
Power
OFF
all
electrical
terminals
before
the
inverter
maintenance
;
strictly
comply
with
the
safety
precautions
in
this
document
when
operating
the
inverter
.
DANGER
DANGER
DANGER
1
.
4
Electrical
Connections
1
.
5
Operating
and
Commissioning
1
.
6
Maintenance
CPS SCA-S/
SM Series Inverter
