Electrical Installation; Emc Information And Connection - BONFIGLIOLI Vectron ACTIVE CUBE Serie Guia De Inicio Rapido

4

Electrical installation

DANGER
The five safety rules must be complied with.
•
• Disconnect the frequency inverter from mains voltage and protect it against being energized
unintentionally.
Verify safe isolation from power supply.
•
When the frequency inverter is disconnected from power supply, the mains, DC-link voltage and
•
motor terminals may still be live for some time. Wait for some minutes until the DC link
capacitors have discharged before starting to work at the unit.
Switch off power supply before connecting or disconnecting the mains cable to/from
•
terminal X1, the motor cables and the brake resistor to/from terminal X2.
NOTE
• The cables connected to the frequency inverters may not be subjected to high-voltage
insulation tests.
• Use copper cables for 30 °C ambient temperature.
• The earth leakage current of the inverter can be greater than AC 3.5 mA or DC 10 mA.
NOTE
• According to EN61800-5-1 please note: This product can cause a direct current in the protective
earth conductor. When a residual current device (RCD) or a residual current monitor (RCM) is
used for protection in the event of direct or indirect contact, only an RCD or RCM of Type B is
permissible on the power supply side of this product.
4.1

EMC information and Connection

The frequency inverter is designed according to the requirements and limit values of product norm EN 61800-3
with an interference immunity factor (EMI) for operation in industrial applications. Electromagnetic interference is
to be avoided by expert installation and observation of the specific product information.
Measures
Install the frequency inverters and commutating chokes on a metal mounting panel. Ideally, the mounting
panel should be galvanized, not painted.
Provide proper equipotential bonding within the system or plant. Plant components such as electrical cabinets,
control panels, machine frames must be connected by means of PE cables, i.e. sufficient area and with good
conductivity.
The shield of the control cables is to be connected to ground potential properly, i.e. with good conductivity, on
both sides (shield clamp). Mount shield clamps for cable shields close to the unit.
Connect the frequency inverter, the commutating choke, external filters and other components to an earthing
point via short cables.
Excessive cable length and loosely suspended cabling must be avoided. Contactors, relays and solenoids in
the electrical cabinet are to be provided with suitable interference suppression components.
02/15 Quick Start Guide ACU
GB
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