K1
External mains contactor for supply units without integrated
mains contactor
M
L
Motor fan
NT
Power supply unit
Q1, Q2, Q3 Fusing
T
Transformer
Z1, Z2
Shield connection points for cables
Fig. 6-23:
EMC areas in control cabinet
Design and installation in area A - control cabinet area free from inter‐
ference
Arranging the components in the
control cabinet
Maintain the recommended distance of at least 200 mm (distance d1 in the
figure):
●
Between components and electrical elements (switches, pushbuttons,
fuses, terminal connectors) in interference-free area A and the compo‐
nents in the two other areas B and C
Maintain the recommended 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 connec‐
tions of the drive system) and the components and lines free from inter‐
ference between mains and filter including the mains filter in area A
If these distances are not maintained, the magnetic leakage fields are injec‐
ted onto the components and lines free from interference connected to the
mains, and the limit values at the mains connection are exceeded in spite of
the installed filter.
Cable routing for interference-free
lines to the mains connection
Maintain the recommended distance of at least 200 mm (distances d1 and d3
in the figure):
●
Between supply feeder or lines between filter and control cabinet exit
point in area A and the lines in area B and C
If this is not possible, there are two alternatives:
1.
Install shielded lines and connect the shield at several points (at least at
the beginning and end of the line) to the mounting plate or the control
cabinet housing over a large surface area.
2.
Separate lines from the other lines prone to interference in areas B and
C with a grounded distance plate vertically attached to the mounting
plate.
Install the shortest possible lines within the control cabinet and install them
directly on the grounded metal surface of the mounting plate or control cabi‐
net housing.
Mains supply lines from areas B and C cannot be connected to the mains
without a filter.
Failure to observe the information on cable routing given in this
section will partially or completely neutralize the effect of the
mains filter. This will cause the noise level of the interference
emission to be higher within the 150 kHz to 40 MHz range and
the limit values at the connection points of the machine or system
will be exceeded. The specified distances are recommendations,
provided the dimensions of the control cabinet allow the lines to
be installed accordingly.
DOK-INDRV*-HCS01******-PR05-EN-P
Bosch Rexroth AG
175/341
Rexroth IndraDrive CsDrive Systems with HCS01
Mounting and installation
