Power Electronics SD750K, Hardware And Installation Manual

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SD750K POWER ELECTRONICS
48
POWER CONNECTION
EN
CAUTION
Line voltage (input supply) must never be connected to U, V and W terminals.
Otherwise, the drive may get be damaged.
It is necessary that the installer ensures correct compliance with the laws and regulations in force
in the countries or areas where the drive is to be installed.
Do not use capacitors for power factor correction, surge suppressors or RFI filters on the output side of
the drive. Doing so may damage these components or the drive itself.
All power conductors such as power input cables, output cables to the motor or DC link cables must be
routed separately from the control, signal, PTC, encoder or data cables. The recommended distances
between the cables are shown in the next figure:
Power Electronics recommends installing separately the following circuits, whether in cable racks, trays
or in different wire ducts:
•
Single-wire signal or data cables with V< 60V
•
Single-wire cables with 60V<V< 230V
•
Input power cables with low level of interferences 230V<V<1000V
•
Output motor power cables and Dynamic brake DC with high level of interference
230V<V<1000V.
•
Medium voltage cables with V<1000V
The power cables must have sufficient current rating to prevent important wiring overheating and voltage
drops. The installer must consider the cable cross-section, cable type, routing method and the ambient
conditions to select the appropriate cable. It is only permitted the use of cooper or aluminium cables. The
maximum cable section and the available holes per phase could be found in the following section.