SIEMENS
SINAMICS DCM
Engineering information
Notes for EMC-compliant drive installation
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Siemens D 23.1 · 2014
5
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Overview
(continued)
Arrangement of radio interference suppression filters and
commutating reactors
Another section shows how the radio interference suppression
filters and commutating reactors are arranged in a
SINAMICS DC MASTER. The order in which the reactors and
filters are installed must be adhered to. The filter cables on the
line side and unit side must be physically separated.
For information on selecting fuses for semiconductor protection,
please refer to the section titled "Line fuses".
Example of a cabinet design with a SINAMICS DC MASTER of
up to 850 A
Shielding at the cable entry to the cabinet
Shielding in the control cabinet
Customer connection, 3 AC
Customer connection, DC
Customer connection
Pulse encoder
Control trans-
former fan
Circuit-breaker
Fuse
links/
m.c.b.'s
Commutating
reactor - field
Circuit-breaker
See Fig. "Radio
interf. suppres. filter"
See Fig.
"Shielding in the
control cabinet"
Radio interference
suppression filter
Shield bars
Connecting terminals
Fuse links
Connecting terminals
Cable duct
Protective conductor
(location is uncritical)
Commutating
reactor
Main switch
Fuse links
Radio
interference
suppression
filter for 3 AC
converters
Main contactor
SINAMICS
DC MASTER
Cable clamping bar
See Fig. "Shielding
at the cable entry to
the cabinet"
Shield bars
G_D023_EN_00011a
G_D023_EN_00012
Attach to cabinet enclosure
over a large surface area
with good conductivity
at both ends!
Do not use the shield
bar for strain relief!
Cable clamping bar
for strain-relief
Cable duct
Also shield on the
plant side (e.g at the
pulse encoder)!
Shield connection
Analog signal
cable
Data cable
(e. g. pulse encoder)
Data cable
(e. g. PROFIBUS DP)
Connecting
terminals
Attach to cabinet
enclosure over a
large surface area
with good conduc-
tivity at both ends
Also shield
on the plant side
(e. g. at the pulse encoder)
G_D023_EN_00013
© Siemens AG 2014