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4.12.4
Insulated bearings when operated with a converter
If the machine is operated from a low-voltage converter, insulated bearings are fitted at the NDE
and an insulated encoder with insulated bearings (option).
Comply with the plates on the machine relating to bearing insulation and possible bridges.
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
• 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
②
③
Figure 4-2
1PC1423 roller-table motors SH 112 ... 400
Operating Instructions
Driving machine
Motor
Coupling
Schematic representation of a single drive
installation of an automatic lubrication system or a non-insulated vibration sensor.
Driving machine
Motor
Coupling
Schematic representation of a tandem drive
4.12 Converter operation
④
Insulated bearings
⑤
Insulated tachometer fitting
④
Insulated bearings
⑤
Insulated tachometer fitting
⑥
Insulated coupling
Preparing for use
41
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