DOK-INDRV*-HCS02*UL
-*-1803-EN-P
Bosch
Rexroth
AG
53/69
Rexroth
lndraDrive
Drive
Controllers
Power
Sections
HCS02
E1
... E5
K1
ML
NT
02
T
Z1
, Z2
Fig.6-1:
EMC Measures for Design and Installation
Equipment grounding conductor
of
the components
External mains contactor for supply units and converters without inte-
grated mains contactor
Motor blower
Power supply unit
Fusing
Transformer
Shield connection points for cables
Not allowed at HNF mains filter
In feeding Supply Unit
or
Converter- EMC Areas in the Control Cabinet
6.2.4
Design
and
Installation
in
Area
A-
Interference-Free
Area
of
Control
Cabinet
Arrang
i
ng
the
Components
in
the
Control
Cabinet
Cable
Routing
of
the
Interference-
Free
Lines
to
the
Mains
Connection
Routing
and
Connecting
a
Neutral
Conductor
(N)
Comply with a distance of at least 200
mm
(distance
d1
in
the figure):
• Between components and electrical elements (switches, pushbuttons,
fuses, terminal connectors)
in
the interference-free area A and the com-
ponents
in
the two other areas B and C
Comply with a distance of at least 400
mm
(distance d4
in
the figure):
• Between magnetic components (such
as
transformers, mains chokes and
DC
bus chokes that are directly connected to the power connections
of
the drive system) and the interference-free components and lines between
mains and filter including the mains filter
in
area A
If these distances are not kept, the magnetic leakage fields are injected to the
interference-free components and lines connected to the mains and the limit
values at the mains connection are exceeded
in
spite of the installed filter.
Comply with a distance of at least
200
mm
(distance
d1
and d3
in
the figure):
• Between supply feeder or lines between filter and exit point from the con-
trol cabinet
in
area A and the lines
in
area B and C
If
this
is
impossible, there are two alternatives:
1.
Install lines
in
shielded form and connect the shield at several points (at
least at the beginning and at the end
of
the line) to the mounting plate or
the control cabinet housing over a large surface area.
2.
Separate lines from the other interference-susceptible lines
in
areas
Band
C by means of a grounded distance plate vertically attached to the mount-
ing plate.
Install the shortest possible lines within the control cabinet and install them
directly
on
the grounded metal surface
of
the mounting plate or
of
the control
cabinet housing.
Mains supply lines from areas B and
C must not
be
connected to the mains
without a filter.
~
In
case you do not observe the information
on
cable routing given
in
this section, the effect
of
the mains
fi
lter
is
totally or partly neu-
tralized. This
will cause the noise level of the interference emission
to
be
higher within the range
of
150 kHz to 40 MHz and the limit
values at the connection points of the machine or installation
will
thereby
be
exceeded.
If a neutral conductor
is
used together with a three-phase connection, it must
not
be
installed unfiltered
in
zones
Band
C,
in
order to keep interference off the
mains.
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