BONFIGLIOLI ACTIVE Cube ACU 201-01, Operating Instructions Manual, Page: 56 / 292

6.4.2 Mains Connection
DANGER
Disconnect the frequency inverter from mains voltage and protect it against being ener-
gized unintentionally.
Verify that the frequency inverter is discharged.
Wait for some minutes until the DC link capacitors have discharged before starting to
work at the unit.
When the frequency inverter is disconnected from power supply, the mains, DC-link
voltage and motor terminals may still be live for some time.
The mains fuses and cable cross-sections are to be selected according to EN 60204-1 and DIN VDE
0298 Part 4 for the nominal operating point of the frequency inverter. According to UL/CSA, approved
Class 1 copper lines with a temperature range of 60/75°C and matching mains fuses are to be used
for the power cables. The electrical installation is to be done according to the device specifications and
the applicable standards and directives.
CAUTION
The control, mains and motor lines must be kept physically separate from one another.
The cables connected to the frequency inverters may not be subjected to high-voltage
insulation tests unless appropriate circuitry measures are taken before.
6.4.3 Motor Connection
DANGER
Disconnect the frequency inverter from mains voltage and protect it against being
energized unintentionally.
Verify that the frequency inverter is discharged.
Wait for some minutes until the DC link capacitors have discharged before starting to
work at the unit.
When the frequency inverter is disconnected from power supply, the mains, DC-link
voltage and motor terminals may still be live for some time.
BONFIGLIOLI VECTRON recommends using shielded cables for the connection of the
motor and the brake resistor to the frequency inverter. The shield is to be connected
to PE potential properly, i.e. with good conductivity, on both sides. The control, mains
and motor lines must be kept physically separate from one another. The user must
comply with the applicable limits stipulated in the relevant national and international
directives as regards the application, the length of the motor cable and the switching
frequency.
56 Operating Instructions ACU 06/13