EMC
VDF650
User
Manual
-
258
-
7
.
5
Solutions
to
Common
EMC
Interference
Problems
The
AC drive
generates
very strong interference
.
Although
EMC measures are
taken
,
the
interference
may
still
exist
due
to
improper
cabling
or
grounding
during
use
.
When
the
AC
drive
interferes
with
other
devices
,
adopt
the
following
solutions
.
Interference
Type
Solution
Leakage
protection
switch
tripping
• Connect
the
motor
housing
to
the
PE
of
the
AC
drive
.
• Connect
the
PE
of
the
AC
drive
to
the
PE
of
the
mains
power
supply
.
• Add
a
safety
capacitor
to
the
power
input
cable
.
• Add
magnetic
rings
to
the
input
drive
cable
.
AC
drive
interference
during
running
• Connect
the
motor
housing
to
the
PE
of
the
AC
drive
.
• Connect
the
PE
of
the
AC
drive
to
the
PE
of
the
mains
voltage
.
• Add
a
safety
capacitor
to
the
power
input
cable
and
wind
the
cable
with
magnetic
rings
.
• Add
a
safety
capacitor
to
the
interfered
signal
port
or
wind
the
signal
cable
with
magnetic
rings
.
• Connect
the
equipment
to
the
common
ground
.
Communication
interference
• Connect
the
motor
housing
to
the
PE
of
the
AC
drive
.
• Connect
the
PE
of
the
AC
drive
to
the
PE
of
the
mains
voltage
.
• Add
a
safety
capacitor
to
the
power
input
cable
and
wind
the
cable
with
magnetic
rings
.
• Add
a
matching
resistor
between
the
communication
cable
source
and
the
load
side
.
• Add
a
common
grounding
cable
besides
the
communication
cable
.
• Use
a
shielded
cable
as
the
communication
cable
and
connect
the
cable
shield
to
the
common
grounding
point
.
I
/
O
interference
• Enlarge
the
capacitance
at
the
low
-
speed
DI
.
A
maximum
of
0
.
11
uF
capacitance
is
suggested
.
• Enlarge
the
capacitance
at
the
AI
.
A
maximum
of
0
.
22
uF
is
suggested
.
Summary of Contents for VDF650 Series
Page 1: ...VDF650 Series High Performance AC Drive...
Page 9: ......
Page 10: ...1 Safety Information and Precautions...
Page 17: ...Safety Information and Precautions VDF650 User Manual 16...
Page 18: ...2 Product Information...
Page 29: ...Product Information VDF650 User Manual 28...
Page 30: ...3 Mechanical and Electrical Installation...
Page 46: ...4 Operation Display and Application Examples...
Page 79: ...Operation Display and Application Examples VDF650 User Manual 78...
Page 80: ...5 Function Code Table...
Page 136: ...6 Description of Function Codes...
Page 248: ...7 EMC...
Page 260: ...8 Selection and Dimensions...
Page 285: ...Selection and Dimensions VDF650 User Manual 284...
Page 286: ...9 Maintenance and Troubleshooting...
