BONFIGLIOLI ACTIVE ACT2 Series Quick Start Manual page 70

GB
Line choke
Line chokes reduce mains harmonics and reactive power. In addition, a longer
service life of the frequency inverter is possible. When using a line choke, note
that line chokes may reduce the maximum output voltage of the frequency
inverter. The line choke must be installed between the mains connection and
the input filter.
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Mains connection
A
The mains supply cable may be as long as required.
To be separated from control, data and motor
cable.
DC-link connection
B
The frequency inverter is to be connected to the
same mains potential or a common direct voltage
source. Cables with a length >300 mm must be
shielded, the cable shield must be connected to the
mounting plate on both sides. Use twisted cables
where possible.
Control connection
C
Control and signal cables must be kept physically
separate from the power cables. Analog signal lines
are to be connected to the shield potential on one
side. Install sensor cables separate from motor
cables.
The low voltage circuits (e.g. terminal X210A,
X210B) are isolated from the main circuit (e.g. U, V,
W) by way of safety isolation and safety impedance.
Motor and brake resistor
D
The shield of the motor cable is to be connected to
ground potential properly on both sides. On the
motor side use a metal compression gland. On the
frequency inverter side an appropriate shield clamp
is to be used. The signal cable used for monitoring
the motor temperature must be kept separate from
the motor cable. Connect the shield of this line on
both sides. If a braking resistor is used, the
connection cable must also be shielded, and the
shield is to be connected to earth potential on both
sides.
Relay
The relay allows using high-energy signals.
Quick Start Guide ACT
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