12.3 SERVOPACK Main Circuit Wires
12.3.1 Three-Phase, 200-VAC Wires for Σ-7S SERVOPACKs
12-10
12.3
SERVOPACK Main Circuit Wires
This section describes the main circuit wires for SERVOPACKs.
Note: To use 600-V heat-resistant polyvinyl chloride-insulated wire (HIV), use the following table as reference for the
applicable wires.
• The specified wire sizes are for three bundled leads when the rated current is applied with a surrounding
air temperature of 40°C.
• Select the wires according to the surrounding air temperature.
12.3.1
Three-Phase, 200-VAC Wires for Σ-7S SERVOPACKs
These specifications are based on IEC/EN 61800-5-1, UL 61800-5-1, and CSA C22.2 No.274.
1. To comply with UL standards, use UL-compliant wires.
2. Use copper wires with a rated temperature of 75° or higher.
3. Use wires with a rated withstand voltage of 300 V or higher.
SERVOPACK
Model: SGD7S-
Ter mi na l S ym bo ls Wire Size
Screw
Size
Tightening
Torque
[N⋅m]
R70A
Main Circuit Power
Supply Cables
L1, L2, L3
AWG16 (1.25 mm
2
)
−−
Servomotor Main Cir-
cuit Cables*
U, V, W
Control Power Supply
Cables
L1C, L2C
External Regenerative
Resistor Cables
B1/ , B2
Ground cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
R90A
Main Circuit Power
Supply Cables
L1, L2, L3
AWG16 (1.25 mm
2
)
−−
Servomotor Main Cir-
cuit Cables*
U, V, W
Control Power Supply
Cables
L1C, L2C
External Regenerative
Resistor Cables
B1/ , B2
Ground cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
1R6A
Main Circuit Power
Supply Cables
L1, L2, L3
AWG16 (1.25 mm
2
)
−−
Servomotor Main Cir-
cuit Cables*
U, V, W
Control Power Supply
Cables
L1C, L2C
External Regenerative
Resistor Cables
B1/ , B2
Ground cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
2R8A
Main Circuit Power
Supply Cables
L1, L2, L3
AWG16 (1.25 mm
2
)
−−
Servomotor Main Cir-
cuit Cables*
U, V, W
Control Power Supply
Cables
L1C, L2C
External Regenerative
Resistor Cables
B1/ , B2
Ground cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
Continued on next page.
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