Table of Contents
Advertisement
• Use the common-mode filter (damping cores) at the converter output. The SIEMENS sales
partner is responsible for selecting and dimensioning.
• Limit the rise in voltage by using output filters. Output filters dampen the harmonic content
in the output voltage.
• Use the motor reactors.
• Preferably use an IT line supply with an insulated neutral point.
The operating instructions for the converter are not part of this documentation. Carefully
comply with the instructions in the converter configuring information.
4.7.4
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.
1PC134, 1PC136 crane motors SH 132 ... 315
Operating Instructions, 12/2023, A5E43212221A
Driving machine
Motor
Coupling
Schematic representation of a single drive
installation of an automatic lubrication system or a non-insulated vibration sensor.
4.7 Converter operation
④
Insulated bearings
⑤
Insulated tachometer fitting
Preparing for use
37
Advertisement
Table of Contents
