As standard, the input and output terminals are made of tin plated copper. If
they are oxidized prior to its installation, the terminals will be poorly
connected and this is a cause of overheating. To avoid this effect, clean the
terminal lugs and all contact surfaces with ethanol and follow the
recommended cable section.
Use insulated ring lugs when connecting the power terminals.
CAUTION
Line voltage (input supply) must never be connected to U, V and W
terminals.
Incorrect connection will result in the drive being damaged.
It is necessary that the installer guarantees the correct observance of
the law and the regulations that are in force in those countries or areas
where this device is going to be installed.
Do not use capacitors for power factor correction, surge suppressors,
or RFI filters on the output side of the drive. In doing so, the components
could get damaged.
Use shielded and three-wire braided cable and ground. Do not use single-
core wires.
If the drive settings are set by default (switching frequency 3 kHz), make sure
that the total cable length does not exceed:
• 100 m (328ft) for unshielded wires.
• 50m (165ft) for shielded wires.
For other switching frequencies, lengths may vary.
Voltage drop is calculated by using the following formula:
Voltage Drop (V) = [√3 x cable resistance (mΩ/m) x cable length (m) x
current(A)] / 1000
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