Eaton MVX9000 Series, Руководство пользователя

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Fuses and Circuit Breakers
4-10 MVX9000 User Manual
Start-Up
Procedures
Wiring the Motor to the Inverter Output
Step 7 : Connect the three-phase AC induction motor to the output of the inverter.
The motor must be a three-phase induction motor. It should also come with a
chassis ground lug. If the motor does not have three power input leads, stop the
installation and verify the motor type. Other guidelines for wiring the motor include:
•
Use an inverter-grade motor for maximum motor life (1600V insulation).
•
For standard motors, use the AC reactor accessory if the wiring between the
inverter and motor exceeds 30 feet (10 meters) in length.
Connect the motor to the terminals indicated on the inverter. The terminals are
labeled T1, T2 and T3. Connect the chassis ground lug on the inverter. The motor
chassis ground must also connect to the same point. Use a star ground (single
point) arrangement, and never daisy-chain the grounds (point-to-point).
Use the same wire gauge on the motor and chassis ground wiring as you used
on the power input wiring in the previous step. After completing the wiring:
•
Check all wire connections both at the inverter and motor to make sure they
are secure.
•
Close all access doors.
•
Remove any covering placed on the inverter ventilation openings.