To perform a correct terminals connection, follow the next steps.
▪ Refer to section “Power Terminals” for recommended screws and washers
metrics, as well as recommended torque.
▪ The number of busbars depends on the frame size. Check the “Power
terminals” section.
▪ Before connecting the cables, clean the contact surface with a clean cloth and
ethanol cleaner.
▪ Use a pressure washer and a flat washer between the nut or bolt head and
the terminal lug.
▪ Use copper or aluminium conductors that whithstand a voltage of 600Vac for
equipment with rated voltage up to 500Vac..
The recommended cable types and lengths between the drive (with factory settings) and the motor are:
▪ Unshielded cable: 300m. Asymmetrical 4-wire cable including PE conductor. It is recommended
to use a motor ground cable (PE) with a cross section equal or higher than the supply motor wires
cross section (U, V, W). When single-wire cables are used in three-phase systems, the three
phase conductors must be bundled symmetrically.
▪ Shielded cable: 150m. Symmetrical 3-wire cable with PE conductor- with concentric shield. To
implement an effective shield bonding, an EMC cable gland should be used in both the motor
junction box and the drive cabinet to ensure effective 360º ground connection and a low
impedance path for high frequency current. Refer to “EMC Installation Requeriments” section.
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