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Omron SYSDRIVE 3G3RV Series User Manual

Omron SYSDRIVE 3G3RV Series
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Inverter Application Precautions
This
section
provides
precautions
for
selecting,
installing,
setting,
and
handling
Inverters.
K
KK
K Selection
Observe
the
following
precautions
in
selecting
an
Inverter.
nInstalling Reactors
A
large
peak
current
will
flow
in
the
power
input
circuit
when
the
Inverter
is
connected
to
a
large-capacity
power
transformer
(600
kVA
or
higher)
or
when
switching
a
phase
capacitor.
Excessive
peak
current
can
destroy
the
convertor
section.
To
prevent
this,
install
a
DC
or
AC
reactor
(optional)
to
improve
the
power
sup-
ply
power
factor.
DC
reactors
are
built
into
200-V
class
Inverters
of
22
to
110
kW
and
400-V
class
Inverters
of
22
to
300
kW.
If
a
thyristor
convertor,
such
as
a
DC
drive,
is
connected
in
the
same
power
supply
system,
connect
a
DC
or
AC
reactor
regardless
of
the
power
supply
conditions
shown
in
the
following
diagram.
Fig 10.1
nInverter Capacity
When
connecting
special
motors
or
multiple
motors
in
parallel
to
an
Inverter,
select
the
Inverter
capacity
so
that
the
rated
output
current
of
the
Inverter
is
1.1
times
the
sum
of
all
the
motor
rated
currents.
nInitial Torque
The
startup
and
acceleration
characteristics
of
the
motor
are
restricted
by
the
overload
current
ratings
of
the
Inverter
that
is
driving
the
motor.
The
torque
characteristics
are
generally
less
than
those
required
when
start-
ing
using
a
normal
commercial
power
supply.
If
a
large
initial
torque
is
required,
select
an
Inverter
with
a
somewhat
larger
capacity
or
increase
the
capacity
of
both
the
motor
and
the
inverter.
nEmergency Stop
Although
the
Inverter's
protective
functions
will
stop
operation
when
a
fault
occurs,
the
motor
will
not
stop
immediately.
Always
provide
mechanical
stop
and
protection
mechanisms
on
equipment
requiring
an
emer-
gency
stop.
nOptions
Terminals
B1,
B2,
,
1,
2,
3
are
for
connecting
only
the
options
specifically
provided
by
OMRON.
Never
connect
any
other
devices
to
these
terminals.
Power supply
capacity (kVA)
DC or AC reactor
Required
DC or AC reactor
Not required
Inverter capacity (kVA)

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Omron SYSDRIVE 3G3RV Series Specifications

General IconGeneral
BrandOmron
ModelSYSDRIVE 3G3RV Series
CategoryInverter
LanguageEnglish

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