
● 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.
4.16.4
Insulated bearings when operating the converter
If the machine is operated with a low-voltage converter, then as a minimum, one bearing must
be insulated (option) - and a speed encoder with insulated bearings (option) mounted.
Motor bearings can be insulated in the following ways:
● NDE bearing insulation (option): The DE bearing is not insulated. No additional measures
are required.
● DE bearing insulation (option): The NDE bearing is not insulated. The coupling must be
insulated.
● DE and NDE bearing insulation (option): Both bearings are insulated. The shaft must be
continually grounded using a grounding brush (option).
Comply with the plates on the machine relating to bearing insulation and possible bridges.
①
Driving machine
④
Insulated bearings
②
Motor
⑤
Insulated tachometer fitting
③
Coupling
Figure 4-2
Schematic representation of a single drive
NOTICE
Bearing damage due to bearing currents
The bearing insulation must not be bridged. Bearing currents can damage bearings.
● Also for subsequent installation work, such as the installation of an automatic lubrication
system or a non-insulated vibration sensor, make sure that the bearing insulation cannot
be bridged.
● Please contact the service center if necessary.
Preparing for use
4.16 Converter operation
1MB5 SH 400/450
40
Operating Instructions, 05/2019, A5E45959221A
Содержание SIMOTICS XP 1MB5 SH400
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Страница 10: ...Table of contents 1MB5 SH 400 450 8 Operating Instructions 05 2019 A5E45959221A ...
Страница 64: ...Assembly 5 4 Aligning and fixing the machine 1MB5 SH 400 450 62 Operating Instructions 05 2019 A5E45959221A ...
Страница 106: ...Operation 8 8 Non operational periods 1MB5 SH 400 450 104 Operating Instructions 05 2019 A5E45959221A ...
Страница 154: ...Disposal 11 5 Disposal of components 1MB5 SH 400 450 152 Operating Instructions 05 2019 A5E45959221A ...
Страница 156: ...Service support 1MB5 SH 400 450 154 Operating Instructions 05 2019 A5E45959221A ...
Страница 160: ...Quality documents 1MB5 SH 400 450 158 Operating Instructions 05 2019 A5E45959221A ...
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Страница 166: ...Germany More information www siemens com drives Siemens AG Digital Industries Postfach 48 48 90026 NÜRNBERG ...