ABB ACS880-04F, Quick Installation And Start-Up Manual

Page: 14 / 36

Ground the motor cable shield at the motor end. For minimal interference, make a
360° grounding at the cable entry, or keep the pig tail short.
Measure the insulation resistance of the motor and motor cable when the motor cable
is disconnected from the drive. 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.
1000 V DC,
> 100 Mohm
U1-PE, V1-PE, W1-PE
ohm
M
3~
U1
V1
W1
PE
Connect the power cables and install the shrouds
See the power cable connection diagram (figure E) in chapter Step-by-step drawings
for an installation example (page 31)
Figure Task (motor cables) Step
H Install the grounding terminal to the drive module base. 1
I Run the motor cables to the cabinet. Ground the cable shields 360° at the cabinet
entry. 2
J Connect the twisted shields of the motor cables to the grounding terminal. 3
K Screw in and tighten the insulators to the drive module by hand. Install the T3/W2
connection terminal to the insulators. 4
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.
L Connect the phase T3/W2 conductors to the T3/W2 terminal. 5
- Install the T2/V2 connection terminal to the insulators. See the warning in step 4. 6
- Connect the phase T2/V2 conductors to the T2/V2 connection terminal. 7
- Install the T1/U2 connection terminal to the insulators. See the warning in step 4. 8
- Connect the phase T1/U2 conductors to the T1/U2 terminal. 9
M, N
• 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.
• Install the inner clear plastic shrouds around the motor cables.
10
P Remove the plastic sheeting from the outer clear plastic shroud from both sides.
Install the shroud to the drive module. 11
P Install the lower front cover to the drive module. 12
14 Quick installation and start-up instructions