Connecting The Motor Cables - ABB ACS880-107 Hardware Manual

80 Electrical installation

Connecting the motor cables

Refer to the drawings below.
WARNING! Read and follow the instructions given in Safety instructions
for ACS880 multidrive cabinets and modules (3AUA0000102301
[English]). Ignoring the instructions can cause physical injury or death,
or damage to the equipment.
1. Remove the shroud covering the output busbars.
2. For 360° grounding of the shield at the cable entry, remove the outer jacket of the
cable where it passes through the cable entry (a).
3. Cut the cable to suitable length and strip the ends of the individual conductors. Twist
the shield strands together to form a separate conductor and wrap it with tape.
4. Crimp suitable lug terminals onto the phase conductors and the ground conductor.
The dimensions of the output busbars are shown in chapter
5. Connect the shield (and any grounding conductors) of the cable to the PE busbar
close to the cable entries.
6. Connect the phase conductors of the motor cable to the U2, V2 and W2 terminals. You
can temporarily remove the plastic insulators (b) between the busbars to make the
connecting work easier.
WARNING! The plastic insulators (b) between the busbars must be in place when
the inverter is powered.
7. Secure the cable mechanically.
8. Refit the shroud removed earlier.
9. At the motor, connect the cables according to instructions from the motor
manufacturer. Pay special attention to the phase order. For minimum radio-frequency
interference, ground the cable shield 360 degrees at the cable entry of the motor
terminal box, or ground the cable by twisting the shield so that the flattened shield is
wider than 1/5 of its length.
Technical data.