ABB ACS380 Series, Hardware Manual

Page: 56 / 186

56 Planning the electrical installation
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Separate control cable ducts
Put 24 V and 230 V (120 V) control cables in separate ducts unless the 24 V cable is
insulated for 230 V (120 V) or insulated with an insulation sleeving for 230 V (120 V).

Continuous motor cable shield or conduit
To minimize the emission level when there are safety switches, contactors,
connection boxes or similar equipment on the motor cable between the drive and the
motor: Install the equipment in a metal enclosure with 360 degree grounding for the
shields of both the incoming and outgoing cables, or connect the shields otherwise
together. If cabling is put into conduits, make sure that they are continuous.
Implementing short-circuit protection

Protecting the drive and input power cable in short-circuits
Protect the drive and input cable with fuses. For fuse ratings, refer to Technical data
on page 87 . The fuses protect the input cable, restrict drive damage and prevent
damage to adjoining equipment if there is a short-circuit.
For information on circuit breakers, refer to Technical data on page 87 .

Protecting the motor and motor cable in short-circuits
If the motor cable has the correct size for the nominal current, the drive protects the
motor cable and motor if there is a short-circuit.