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Preparing for use
4.13 Converter operation
Standard motors SH 63 ... 355
Operating Instructions, 12/2018, A5E38483075A
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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
installation of an automatic lubrication system or a non-insulated vibration sensor.
•
Please contact the service center if necessary.
Tandem operation
If you connect two motors in series in "tandem operation", install an insulated coupling
between the motors.
①
Driving machine
④
Insulated bearings
②
Motor
⑤
Insulated tachometer fitting
③
Coupling
⑥
Insulated coupling
Figure 4-3
Schematic representation of a tandem drive
NOTICE
Bearing damage
Bearing currents can flow if the coupling between the motors of the tandem drive is not
insulated. This can damage the DE bearings of both motors.
•
Use an insulated coupling to link the motors.
4.13.5
Tandem operation
If you connect two motors in series in "tandem operation", locate a coupling between the
motors; this coupling should satisfy the Directive 2014/34/EU or the regulations that apply in
the country where the equipment is installed.