installation vacon • 4333.2.6 General cabling rules1 Before starting the installation, check that none of the components of the fre-quency converter is live.2Place the motor cables sufficiently far from other cables:• Avoid placing the motor cables in long parallel lines with other cables.• If the motor cable runs in parallel with other cables, the minimum distancebetween the motor cable and other cables is 0.3 m.• The given distance also applies between the motor cables and signal cablesof other systems.• The maximum length of the motor cables for MI1-3 is 30 m. For MI4 & 5,maximum length is 50 m, if use longer cable, current accuracy will bedecreased.• The motor cables should cross other cables at an angle of 90 degrees.3 If cable insulation checks are needed, see Chapter 3.2.9.4Connecting the cables:• Strip the motor and mains cables as advised in Figure 3.31.• Connect the mains, motor and control cables into their respective termi-nals, see Figures 3.17 - 3.26.• Note the tightening torques of power cables and control cables given inchapter 3.2.1 and 3.2.2.• For information on cable installation according to UL regulations see Chap-ter 3.2.8 .• Make sure that the control cable wires do not come in contact with the elec-tronic components of the unit.• If an external brake resistor (option) is used, connect its cable to the appro-priate terminal.• Check the connection of the earth cable to the motor and the frequencyconverter terminals marked with• Connect the separate shield of the motor cable to the earth plate of thefrequency converter, motor and the supply centre.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
