VDF730
User
Manual
EMC
-
155
-
in the surrounding environment on the AC drive
,
and interference
of the AC drive on the
surrounding
equipment
.
■
Installation
Precautions
1
.
The grounding cables of the AC drive and other electric products must be well
grounded
.
2
.
The power input and output power cables of the AC drive and weak current signal
cables
(
for example
,
control line
)
must not be arranged in parallel and vertical
arrangement
is
preferable
.
3
.
It
is
recommended
that
the
output
power
cables
of
the
AC
drive
use
shielded
cables
or
the
power cables
be
shielded by steel pipes and
that
the
shielding layer
be
grounded
reliably
.
It is also recommended that the lead cables of the equipment suffering
interference use twisted
-
pair shielded control cables
,
and the shielding layer be
grounded
reliably
.
4
.
When
the
length
of
motor
cable
is
longer
than
100
m
,
an
output
flter
or
a
reactor
needs
to
be
installed
.
7
.
3
.
3
How
to
Handle
Interference
of
Surrounding
Equipment
on
the
AC
drive
The electromagnetic interference on the AC drive
is generated because plenty
of relays
,
contactors
and
electromagnetic
brakes
are
installed
near
the
AC
drive
.
When
the
AC
drive
has
error
action
due
to
the
interference
,
the
following
measures
can
be
taken
:
1
.
Install a surge suppressor on the devices generating interference.
2
.
Install
a
flter
at
the
input
side
of
the
AC
drive
.
For
the
specifc
operations
,
see
Section
7
.
3
.
6
.
3
.
Use
shielded
cables
as
the
control
signal
cable
of
the
AC
drive
and
lead
cables
of
the
detection
line
and
ensure
that
the
shielding
layer
is
grounded
reliably
.
7
.
3
.
4
How
to
Handle
Interference
of
the
AC
Drive
on
Surrounding
Equipment
The
interference
includes
two
types
,
radiation
interference
and
conduction
interference
.
The
two
types
of
interference
cause
the
surrounding
electric
equipment
to
suffer
electromagnetic
or electrostatic induction
,
resulting in
error actions of the surrounding equipment
.
Handle
different
interference
according
to
the
following
methods
:
1
.
Signals
of
the
measuring
meters
,
receivers
and
sensors
are
generally
weak
.
If
placed
nearby the AC drive or together with the AC drive in the same
control cabinet
,
these
instruments are easy to suffer interference and perform error actions
.
Handle such
situation
as
follows
:
•
Put
these
instruments
in
places
far
away
from
the
interference
source
.
•
Do
not
arrange
the
signal
cables
with
the
power
cables
in
parallel
and
never
bind
them
together
.
•
Use
shielded
cables
as
the
signal
cables
and
power
cables
and
ground
the
shielding
layer
well
.
•
Install
a
ferrite
magnetic
ring
(
with
suppressing
frequency
of
30
to
1
,
000
MHz
)
at
the
output
side
of
the
AC
drive
and
wind
it
2
to
3
coils
.
Summary of Contents for VDF730 Series
Page 1: ...VDF730 Series...
Page 7: ......
Page 8: ...1 Safety Information and Precautions...
Page 15: ...Safety Information and Precautions VDF730 User Manual 14...
Page 16: ...2 Product Information...
Page 30: ...3 Mechanical and Electrical Installation...
Page 51: ...Mechanical and Electrical Installation VDF730 User Manual 50...
Page 52: ...4 Operation and Display...
Page 75: ...Operation and Display VDF730 User Manual 74...
Page 76: ...5 Function Code Table...
Page 97: ...Function Code Table VDF730 User Manual 96...
Page 98: ...6 Description of Function Codes...
Page 153: ...Description of Function Codes VDF730 User Manual 152...
Page 154: ...7 EMC...
Page 158: ...8 Troubleshooting...
