• 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.
4.11.4
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 4-1
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.
Preparing for use
4.11 Converter operation
1FU9
38
Operating Instructions, 07/2020, A5E46712792A
Summary of Contents for SIMOTICCS A 1FU9
Page 1: ...Operating Instructions 1FU9 SIMOTICS A 07 2020 Edition Synchronous motors www siemens com ...
Page 2: ......
Page 58: ...Assembly 5 6 Installing the machine 1FU9 56 Operating Instructions 07 2020 A5E46712792A ...
Page 80: ...Commissioning 7 3 Switching on 1FU9 78 Operating Instructions 07 2020 A5E46712792A ...
Page 110: ...Spare parts 1FU9 108 Operating Instructions 07 2020 A5E46712792A ...
Page 120: ...Technical data B 1 Tightening torques 1FU9 118 Operating Instructions 07 2020 A5E46712792A ...
Page 124: ...Index 1FU9 122 Operating Instructions 07 2020 A5E46712792A ...
Page 125: ......