ABB ACS880-04F, Руководство по оборудованию, Страница: 67 / 172

Guidelines for planning the electrical installation 67

Separate control cable ducts
Lead 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 enclosure for equipment in the
motor cable
To minimize the emission level when safety switches, contactors, connection boxes or
similar equipment are installed on the motor cable between the drive and the motor:
•
European Union: Install the equipment in a metal enclosure with 360 degree
grounding for the shields of both the incoming and outgoing cable, or connect the
shields of the cables otherwise together.
•
US: Install the equipment in a metal enclosure in a way that the conduit or motor cable
shielding runs consistently without breaks from the drive to the motor.
Implementing thermal overload and short-circuit
protection

Protecting the drive and input power cable in short-circuits
Protect the drive with fuses (a) and the input cable with fuses (b) or a circuit breaker as
shown below:
Size the fuses or the circuit breaker at the distribution board according to local regulations
for the input cable protection. Select the fuses for the drive according to the instructions
given in chapter
Technical data . The fuses for the drive protection will restrict drive
damage and prevent damage to adjoining equipment in case of a short-circuit inside the
drive.
24 V
24 V
230 V
(120 V)
230 V
(120 V)
~
~
M
3~
a b
ACS880-04F