￭ Motor cable connection procedure
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.
Refer to the illustrations below.
1.
Do the steps in section Electrical safety precautions (page 57) before you start the work.
2. Remove the shroud covering the lower part of the cubicle.
3. Run the cable into the cubicle through the cable cable entries provided. In case a
grounding cable gland is available, remove the outer jacket of the cable where it passes
through the cable gland (a).
4. 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.
5. Crimp suitable lug terminals onto the phase conductors and the ground conductor. The
dimensions of the output busbars are shown in the technical data.
6. Connect the shield (and any grounding conductors) of the cable to the PE busbar close
to the cable entries.
7. Connect the phase conductors of the motor cable to the U2, V2 and W2 terminals.
8. Secure the cable mechanically. It is recommended to arrange for 360° grounding of the
shield at the cable entry; an example is shown in the detail drawing (b).
9. Connect the control cables as described in section Connecting the control cables.
10. Refit the shroud.
11. 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.
Electrical installation 63
To Next Page
Loading...
