YASKAWA Sigma-V Series User Manual

Also see for S-V Series: User manual Safety precautions User manual User manual

Contents

YASKAWA Sigma-V Series User Manual Manual pdf 59 page image

4 Wiring and Connection4.4.4 Main Circuit Wires4-164.4.4 Main Circuit WiresUse the following wires for the main circuits of the multi-winding drive unit,SERVOPACKs, and the converters.(1) Wire TypesUse the following type of wire for main circuit.The following table shows the wire sizes and allowable currents for three wires.Use wires with specifications equal to or less than those shown in the table.1. Wire sizes are selected for three cables per bundle at 40°C sur-rounding air temperature with the rated current.2. Use a wire with a minimum withstand voltage of 600 V for themain circuit.3. If cables are bundled in PVC or metal ducts, take into account thereduction of the allowable current.4. Use a heat-resistant wire under high surrounding air or paneltemperatures, where polyvinyl chloride insulated wires will rapidlydeteriorate.Cable Type Allowable ConductorTemperature (°C)Symbol NameIV 600 V polyvinyl chloride insulated wire 60HIV 600 V grade heat-resistant polyvinyl chlorideinsulated wire 75NominalCrossSectionDiameter(mm2 )AWGSizeConfiguration(Number ofWires/mm)ConductiveResistance(Ω/km)Allowable Current atSurrounding Air Temperature(A)30°C 40°C 50°C0.5 (20) 19/0.18 39.5 6.6 5.6 4.50.75 (19) 30/0.18 26 8.8 7 5.50.9 (18) 37/0.18 24.4 9 7.7 61.25 (16) 50/0.18 15.6 12 11 8.52 (14) 7/0.6 9.53 23 20 163.5 (12) 7/0.8 5.41 33 29 245.5 (10) 7/1.0 3.47 43 38 318 (8) 7/1.2 2.41 55 49 4014 (6) 7/1.6 1.35 79 70 5722 (4) 7/2.0 0.85 91 81 6638 (1) 7/2.6 0.49 124 110 93