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Corner-grounded and midpoint-grounded 525...690 V delta systems
WARNING! Do not install the drive on a 525...690 V corner-grounded or midpoint-
grounded delta system. Disconnecting the EMC filter and ground-to-phase varistor
does not prevent damage to the drive.
Protect the drive and input power cables
See table on page 79.
Install the drive module into a cabinet
See figure
B
on page 85:
See figure
C
on page 85:
•
Remove the sheeting from the clear plastic shrouds from both sides.
See figure
D
on page 85:
•
Install the top metallic shroud to the drive module.
•
Install the back shrouds to the drive module.
Measure the insulation of the power cables and the motor
Measure the insulation of the input cable according to local regulations before you connect
it to the drive.
See figure
F
on page 86. 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.
Measure the insulation of the motor and motor cable when the motor cable is
disconnected from the drive, see figure
between each phase conductor and then 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.
EN – Quick installation guide 5
G
on page 86. Measure the insulation resistance
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