Bosch Rexroth EFC 3600 Operating Instructions Manual page 162

Bosch Rexroth AG
Electromagnetic Compatibility (EMC)
DR1 Mains choke (optional)
K1 External mains contactor
Z1, Z2 Shield connection points for cables
Fig.11-3: Control cabinet mounting according to interference areas – exemplary ar‐
rangements
11.3.4 Design and installation in area A – interference-free area of con‐
trol cabinet
Arrangement of the Components in the Control Cabinet
Comply with a distance of at least 200 mm (distance d1 in the figure):
● Between components and electrical elements (switches, pushbuttons, fuses, termi‐
nal connectors) in the interference-free area A and the components 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 interfer‐
ence-free components and lines connected to the mains and the limit values at the
mains connection are exceeded in spite of the installed filter.
Cable Routing of the Interference-free Lines to the Mains Connection
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 control 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 cabi‐
net housing over a large surface area.
2. Separate lines from the other interference-susceptible lines in areas B and C by
means of 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 of the control cabinet housing.
Mains supply lines from areas B and C must not be connected to the mains without a
filter.
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DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
E1... Equipment grounding conductor
E5 or the components
M Motor blower
L