Installation
and
Operation
Manual
(Rev
A)
PVI
50
‐
100KW
Series
Inverters
DOCR
‐
070233
Page
33
of
92
5.2
Operation
The
control
electronics
and
DSP
will
be
active
as
soon
as
DC
(PV)
voltage
reaches
245
VDC.
The
inverter
will
go
on
‐
line
with
the
utility/building
3
‐
phase
grid
when
the
DC
voltage
first
exceeds
400
VDC
(strike
voltage).
Next,
the
inverter
will
load
the
array,
bringing
the
DC
voltage
down
from
400
VDC.
Once
there
is
enough
PV
power
to
back
‐
feed
the
grid,
the
inverter
will
produce
power
according
to
what
is
being
delivered
by
the
PV
array.
There
is
a
24
VDC
power
supply
inside
the
inverter.
This
supply
is
powered
from
the
PV
array
and
begins
operation
when
the
voltage
is
above
250
VDC.
24
volts
is
required
for
the
display,
control
relays,
GFDI
circuits,
SolrenView,
and
the
SolrenView
AIR
and
Switch
options.
5.3
Turning
Off
the
Inverter
1.
Use
the
SolrenView
HMI
keypad
to
temporarily
disable
the
power
output
by
pressing
and
holding
the
ESCAPE
button
for
two
seconds.
2.
Turn
off
the
inverter’s
DC
disconnect
switch.
3.
Turn
off
the
inverter’s
AC
disconnect
switch.
4.
Wait
at
least
one
minute
for
the
capacitor
bank
to
discharge
before
restarting
the
inverter.