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

2

Electrical Installation

Danger!
• 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 capaci-
tors have discharged before starting to work at the unit.
• The unit may only be connected with the power supply switched off.
• Make sure that the frequency inverter is discharged.
2.1

EMC Information

T he frequency inverters are desi g ned for operation in industrial applications. Electroma g netic interference can be
avoided by the following precautions:
• Install the frequency inverters and commutating chokes on a metal mounting panel. Ideally, the mounting
panel should be galvanized.
• Provide proper equipotential bonding within the system or the plant. Plant components such as control cabi-
nets, control panels, machine frames, etc. must be connected by means of PE cables.
• Connect the frequency inverter, the commutating choke, external filters and other components to an earthing
point via short cables.
• Keep the cables as short as possible and avoid sagging cables for installation.
Contactors, relays and solenoids in the electrical cabinet are to be provided with suitable interference suppres-
•
sion components.
The mains connection cable must be installed separate from the control, data and motor cables.
•
Connect the shield of the motor cable to ground potential properly on both sides by using shield clamps.
•
• Connect the shield of the control cables to ground potential properly on both sides.
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