Siemens SIMOTICS XP User Manual

Preparing for use
4.14 Converter operation
1MB..1/2/3/4 - shaft heights 63 ... 355
50 Operating Instructions, 06/2020, A5E44455710A
4.14.4 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
Driven machine
④
Insulated bearings
②
Motor
⑤
Insulated tachometer fitting
③
Coupling
Figure 4-2 Schematic representation of a single drive
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.
• Where necessary, contact the Service Center.
If you connect 2 motors in series in "tandem operation", install an insulated coupling between
the motors.
①
Driven machine
④
Insulated bearings
②
Motor
⑤
Insulated tachometer fitting
③
Coupling
⑥
Insulated coupling
Figure 4-3 Schematic representation of a tandem drive

Siemens SIMOTICS XP Specifications

General

Brand	Siemens
Model	SIMOTICS XP
Category	Engine
Language	English