56/69
Bosch
Rexroth
AG
DOK-INDRV*-HCS02*UL
***-1803-EN-P
Rexroth lndraDrive Drive Controllers Power Sections
HCS02
EMC Measures for Design and Installation
Converter
-
Routing
the
Motor
Power
Cables
With
cable
duct
Without
cable
duct
B
c
1
2
3
4
5
-
----
- - -,,-
-----
--
-----
---
:8
--,-----
---(:-
c
,:
I
I;
I
I
I I 1 I
~
h
-----
·
:
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:r
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:r
~
:r
~
r ij
7'"
]o
I ,
.J-
---
-
--
.
~
-~
-
~~-=-
-
~
-~-
-
~-~
-=-
-=-=-~
j
le
'
'
'
'
'
'
·-
--
-
--
----
--
--
--
-----
--
----
--
---------- -------
--
---
--
DE000021
V02
nn.
lh
ll
Area B
Area
C
B
c
Shield connection of motor power cable
via
1
clips
at
least
at
one
point; alternativel
y,
at
the
2
device or
on
mounting plate at control cabinet
Cab
le duct for mains connection lines
Cable duct for motor power cables
Para
l
lel
routing of mains connection lines
and
3
motor power cables over a maximum of
300
4
mm
Distance of
at
least
100
mm
or separated
by
a grounded distance plate
5
Area
B
Area
C
OE
000020V02 nn
.fh
l l
Cable duct for mains connection lines
Shield connection of motor power
cab
le
via
clips
at
least
at
one
po
i
nt;
alternatively,
at
the
device or
on
mounting plate
at
control cabinet
Control cabinet outl
et
of
moto
r power cables
Parallel routing of mains connection lines
and
motor power cables over a
max
i
mum
of
300
mm
Fig.6-2:
Routing
of
Motor
Power
Cables With Cable
Duct
Distance of
at
least
100
mm
or separated
by
a grounded distance plate
Fig.6-4:
6.3
Ground
Connections
Fig.6-3:
Routing
of
Motor
Power
Cables Without Cable
Duct
Routing
of
Cables for Converter
Housing
and
Mounting
Plate
By means
of
appropriate ground connections,
it
is possible to avoid the emis-
sion
of
interference, because interference is discharged to ground on the
shortest possible
way
.
Ground connections of the
metal housings
of
EMC-critical components (such
as filters, devices
of
the drive system, connection points
of
the cable shields,
devices with microprocessor and switching power supply units) have to be
well
contacted over a large surface area. This also applies to all
screw
connections
between mounting
plate and control cabinet wall and to the mounting
of
a
ground bus to the mounting plate.
The best solution is to use a zinc-coated mounting plate. Compared to a
lac-
quered plate, the connections in this case have a good long-time stability.
Connection
Elements
For
lacquered mounting plates, always use screw connections with tooth lock
washers and zinc-coated, tinned screws as connection elements. At the con-
nection points, remove the lacquer so that there is safe electrical contact over
a large surface area.
You achieve contact over a large surface area by means
of
bare connection surfaces
or
several connection screws. For screw connec-
tions, you can establish the contact to lacquered surfaces by using tooth
lock
washers.
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