startup
10
Table
2
.
1
Working
modes
description
Three
working
modes
of
the
inverter
are
shown
as
follows
:
standby
,
operating
,
and
shutdown
.
Table
2
.
1
shows
the
conditions
for
the
inverter
to
switch
between
working
modes
.
The
PV
inverter
enters
the
standby
mode
when the
input
voltage
of
PV
strings
can
enable
auxiliary
power
supply
to
run
,
but cannot meet the
inverter operation requirements. the
input
voltage
of
PV
strings
can
meet
the
inverter
to
-
start
requirements
,
but
cannot
meet
its
minimum
power
requirements
.
When
the
PV
inverter
is
grid
-
tied
and
generates
electricity
,
it
tracks
the
maximum
power
point
to
maximize
the
PV
string
output
.
converts
DC
power
from
PV
strings
into
AC
power
and
feeds
the
power
to
the
power
grid
.
The
PV
inverter
will
enter
to
the
shutdown
mode
if
detecting
a
fault
or
a
shutdown
command
.
Modes
Standby
Operating
Description
The
PV
inverter
switches
from
standby
or
operating
mode
to
shutdown
mode
if
detecting
a
fault
or
a
shutdown
command
.
The
inverter
switches
from
shutdown
mode
to
standby
mode
if
receiving
a
command
or
detecting
that
a
fault
is
rectified
.
Shutdown
2
.
5
Working
Modes
CPS SCA-S/
SM Series Inverter
