ABB ACH580-01 Series, Hardware Manual, Page: 95 / 396

Guidelines for planning the electrical installation 95

Conductor type, IEC and North America
The following table includes various conductor types that can be connected to the
drive. For optimal drive performance, VFD cable is preferred. When not available, see
the following standards in the footnotes below.

Power cable shield, IEC and North America
If the cable shield is used as the sole PE conductor, make sure that the conductivity
agrees with the PE conductor requirements. See section
General guidelines, IEC and
North America on page 89 , or IEC 61800-5-1.
To effectively suppress radiated and conducted radio-frequency emissions, the cable
shield conductivity must be at least 1/10 of the phase conductor conductivity. The
requirements are easily met with a copper or aluminum shield. The minimum
requirement of the motor cable shield of the drive is shown below. It consists of a
concentric layer of copper wires with an open helix of copper tape or copper wire. The
better and tighter the shield, the lower the emission level and bearing currents.
Conductor type
Notes
1, 2)
Copper Allowed All frames
Aluminum (UL installations) Not allowed All frames
Aluminum (IEC installations) Not allowed Frames R1…R4
Allowed Frames R5…R8 (for U
N
=
230 V only)
1)
The selection of cable sizing/type is based on 70 (NEC) Table 310.15 (B) (16), formerly table
310.16, for copper wires is based on 75 °C (167 °F), and wire insulation at 30 °C (86 °F)
ambient temperature. Not more than three current-carrying conductors in raceway or cable
or earth (directly buried). For other ambient temperatures addition derating may be required.
See 310.15(B)(2)(a) for the ampacity correction factors where the ambient temperature is
other than 30°C (86°F).
See to 310.15(B)(3)(a) for more than three current-carrying conductors.
For other conditions, size the cables according to local safety regulations, appropriate input
voltage and the load current of the drive. See also page 297 for the accepted cable sizes of
the drive
2)
Select cable size/type is based on CSA 22.1 latest acceptable revision for your area.
1 Insulation jacket
1 3 4 5 2