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Preparing for use
4.11 Converter operation
• Limit the rise in voltage by using output filters. Output filters dampen the harmonic content
in the output voltage.
• The operating instructions for the converter are not part of this documentation. Refer to the
configuration information for the converter.
4.11.4
Insulated bearings for converter operation
If the machine is controlled from a low-voltage converter, depending on the machine type, an
insulated bearing can be fitted at the NDE.
An insulated speed encoder can be optionally mounted.
Comply with the information provided on the machine plates relating to bearing insulation and
possible jumpers.
①
②
③
Figure 4-1
NOTICE
Bearing damage
The bearing insulation must not be bridged. Bearing currents can damage bearings.
• Do not bridge the bearing insulation for subsequent installation work, such as the
• Where necessary, contact the Service Center.
If you connect 2 motors in series in "tandem operation", install an insulated coupling between
the motors.
38
Driven machine
Motor
Coupling
Schematic representation of a single drive
installation of an automatic lubrication system or a non-insulated vibration sensor.
④
Insulated bearings
⑤
Insulated tachometer fitting
Operating Instructions, 07/2020, A5E46712792A
1FU9
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