LAM Technologies DS10 Series, Руководство пользователя

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DS10xx Installation
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4.4.4 Chassis setting
In order to contain the electromagnetic emissions and to better shield the
driver, it is necessary to give particular attention to the setting of the
chassis.
The driver must be placed inside a metal case, preferably iron made,
capable to successfully shield the electromagnetic emissions. The case must
be electrically placed to ground as better described onwards.
Filter
The filter must be correctly placed in series to the main supply. The ideal
position is on the chassis edge in order to have a short wiring coming out
from the main supply. If, on the contrary, the main supply cables run inside
the chassis, they can be invested by electromagnetic interferences making
ineffective or much reducing the filter efficiency.
The filter output earth must be connected to the metallic body of the
chassis. It is important the connection is of short length and made with a
large section and low inductance conductor. The point of connection
between ground coming from the filter and the chassis constitutes the star
center to which all other components earth must be connected. Moreover,
the filter metallic body must be electrically placed in contact with the case.
Transformer
The transformer must be placed close to the filter and must have a shield
between the primary and the secondary windings. The shield must be
ground connected in the star center obtained inside the case. Furthermore,
the transformer metallic body must be electrically connected to the case.
Power Supply
It is advisable to install the power supply near the transformer. The power
supply earth, usually the negate pole of the filter capacitor, must be
connected to ground in the star center obtained inside the case.
Driver
The driver position must be chosen in order the motor cables can
immediately come out from the case without running long distances inside
the case itself.
Numerical Control
The numerical control device, PLC or other, which generates the driving
signals of the driver must be as far as possible from the drivers and from
the power supply group. Moreover, the signals wiring must be remain
distant from the power supply and motor cables. When the distance from
the numerical control device and the driver and/or the power supply is
short, there must be one or more shielding walls, electrically connected to
the case.