ABB ACS880-04 - Page 5

EN – Quick installation guide 5
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Check the insulation of the input and motor cables and
the motor
Check the insulation of the input cable according to local regulations before you connect it
to the drive.
See figure H on page 88. Ground the motor cable shield at the motor end. For minimal
interference, make a 360-degree grounding at the cable lead-through, or keep the pig tail
short.
Check the insulation of the motor and motor cable when the motor cable is disconnected
from the drive, see figure I on page 88. Measure the insulation resistance between each
phase conductor and the Protective Earth conductor using a measuring voltage of
1000 V DC. The insulation resistance of an ABB motor must exceed 100 Mohm (reference
value at 25 °C or 77 °F). For the insulation resistance of other motors, consult the
manufacturer’s instructions. Note: Moisture inside the motor casing will reduce the
insulation resistance. If you suspect moisture, dry the motor and repeat the measurement.
Connect the power cables and install the shrouds
Step Task (motor cables) Figure Page
1 Install the grounding terminal to the drive module base. J88
2 Run the motor cables to the cabinet. Ground the cable shields 360 degrees at
the cabinet lead-through
K88
3 Connect the twisted shields of the motor cables to the grounding terminal. L88
4 Screw in and tighten the insulators to the drive module by hand. Install the
T3/W2 connection terminal to the insulators.
WARNING! Do not use longer screws or bigger tightening
torque than given in the installation drawing. They can damage
the insulator and cause dangerous voltage to be present at the
module frame.
M88
5 Connect the phase T3/W2 conductors to the T3/W2 terminal. N88
6 Install the T2/V2 connection terminal to the insulators. See the warning in step
4.
- -
7 Connect the phase T2/V2 conductors to the T2/V2 connection terminal. - -
8 Install the T1/U2 connection terminal to the insulators. See the warning in step
4.
- -
9 Connect the phase T1/U2 conductors to the T1/U2 terminal. - -
10 If there is no bottom plate in the cabinet and degree of protection of IP20 is
needed:
• Step drill carefully sufficiently big holes to the inner clear plastic shrouds for
the motor cables to the connected. Smooth the hole edges. Cut the shroud
from the holes to the edge to make it possible to put the shroud around the
cables.
• Remove the plastic sheeting from the shrouds from both sides.
O89
• Install the inner clear plastic shrouds around the motor cables. P89
11 Remove the plastic sheeting from the outer clear plastic shroud from both
sides. Install the shroud to the drive module.
Q89
12 Install the lower front cover to the drive module. Q89