Electrical Installation; Emc Information - BONFIGLIOLI Vectron ACU-P Serie Manual Del Usuario

4. Electrical Installation

Danger!
 When the frequency inverter is disconnected from power supply, the mains,
DC- link voltage and output 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.
 The unit may only be connected with the power supply switched off.
 Make sure that the frequency inverter is discharged.

EMC information

The frequency inverters are designed for operation in industrial applications. Electromagnetic
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 cabinets, 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 on 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 suppression components.
 The mains connection cable must be installed separate from the control, data and
output cables.
 Connect the shield of the output cables to ground potential properly on both sides
by using shield clamps.
05/ 2014 32 Quick Start Guide ACU-P
GB
D