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ATTENTION!
If a disconnect switch additional or a contactor is installed at the power supply
between the inverter and the motor, never operate it with the motor spinning
or with voltage at the inverter output.
The characteristics of the cable used to connect the motor to the inverter, as well as its
interconnection and routing, are extremely important to avoid electromagnetic interference in
other equipment and not to affect the life cycle of windings and bearings of the controlled motors.
Keep motor cables away from other cables (signal cables, sensor cables, control cables, etc.),
according to
Item 3.2.7 Cable Separation Distance on page
Connect a fourth cable between the motor ground and the inverter ground.
When using shielded cables to install the motor:
Follow the safety recommendations of IEC60034-25.
„
Use the low impedance connection for high frequencies to connect the cable shield to the
„
grounding. Use parts supplied with the inverter.
Figure 3.3: Details of the connection of the motor cable
Installation and Connection
21.
MW500 | 17
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