10
05.01
10.1 Installation and connection regulations
10-306
Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
The line filters described are designed to provide noise suppression for SIMO-
DRIVE 611 drive converters; they are not designed to provide noise suppres-
sion for other loads in the cabinet. A dedicated filter must be provided for other
loads in the cabinet.
If the electronics power supply is connected to a separate line supply, then the
feeder cable must be connected through a second filter. The feeder to the elec-
tronics power supply (connector X181) must be screened and the screen must
be connected at both ends, at the connector side, as close as possible to con-
nector X181, and at the cabinet mounting panel.
The fan units must also be connected to the line supply through a second filter.
For high frequency noise currents, the housing of the drive converter and line
filter must be connected in a low–ohmic fashion to the cabinet rear panel. The
cabinet rear panel, must, in turn, be connected through a low–ohmic connection
to the motors/machine. The optimum solution is to mount the modules on a
common bare metal mounting panel so that there is an electrical connection
through the largest possible surface. This mounting panel must then be connec-
ted to the motor/machine, also through the largest possible surface area so that
a good electrical connection is established. Painted cabinet panels as well as
mounting rails or other similar installation equipment with small mounting surfa-
ces do not fulfill this requirement.
The line filters must arranged close to the NE modules (not at the cabinet entry,
but directly next to the NE module). The shielded connecting cable between the
line filter and the NE module should be as short as possible. The incoming ca-
bles to the line filter should be separately routed from one another.
Recommended design, refer to Fig. 10-1.
Power and signal cables must always be routed separately from one another. In
this case, the power cables from the converter module should be routed away
towards the bottom and the encoder cable towards the top in order to achieve
the largest possible separation.
All of the control cables connected to the function terminals, e. g. terminals 663,
63, 48 etc. should be grouped together and routed away towards the top. Indivi-
dual cores which are associated with the same signal should be twisted. The
function cable assembly is best routed away from the encoder cable assembly.
Clearance between the cable assemblies
200 mm (separate cable ducts).
All cables and conductors inside the cabinet should be routed as close as pos-
sible to the cabinet panels as loose random wiring can result in noise being cou-
pled–in (antenna effect). Fault sources in the vicinity should be avoided (contac-
tors, transformers etc.) and if required, a shield should be located between the
cable and noise source.
Cables and conductors should not be extended or lengthened through termi-
nals.
To protect the equipment from noise being coupled–in from external noise sour-
ces on the filter cable, screened cables must be used up to where the cable is
connected to the cabinet terminals.
Applications
Cabinet mounting
Cable routing
10 Cabinet Design and EMC
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