Bosch Rexroth VFC 3210, Руководство по эксплуатации, Страница: 85 / 282

9.3.4 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 electric elements (switches, pushbuttons, fuses,
terminal 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
interference-free components and lines connected to the mains and the limit val-
ues 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 cabinet 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 mount-
ing plate.
Install the shortest possible lines within the control cabinet and install them di-
rectly 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 with-
out a filter.
In case you do not observe the information on cable routing given in
this section, the effect of the mains filter is totally or partly neutral-
ized. This will cause the noise level of the interference emission to
be higher within the range of 150 kHz to 40 MHz and the limit values
at the connection points of the machine or installation will thereby
be exceeded.
VFC 3210 Bosch Rexroth AG
Electromagnetic Compatibility (EMC)
DOK-RCON04-VFC3210****-IT01-EN-P
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