Siemens SIMOTICS T-1FW68, Configuration Manual

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Electrical connection
8.3 System integration
1FW68 radial segment motors
Configuration Manual, 08/2021, A5E51132930B AA
151
Power and signal connection for stator segments higher than 66 A
For the power connection of stator segments with a current demand higher than 66 A,
prefabricated single-core cables with fully-threaded plug connectors or SPEED-
CONNECT plug connectors can be used.
Only fully-threaded plug connectors can be used to connect signals. SPEED-CONNECT
connections are not compatible.
Requirements
• The following components are selected depending on the current and/or power
demand of the segment motor:
– Motor Module
– Line Module including line filter
Other important related factors are the line voltage, regenerative feedback, and the
DC link voltage.
• The encoder system used must be harmonized with the particular application.
• Read the corresponding documentation about open-loop and closed-loop control
systems.
NOTICE
Damage to the main insulation
In systems where direct drives are connected to controlled infeeds, electrical
oscillations can occur with respect to ground potential. These oscillations are, among
other things, influenced by
• The lengths of the cables
• The size of the Active Line Module infeed unit
• The size of the motor
• The winding design of the motor
• The type of line supply
• The place of installation
The oscillations lead to increased voltage loads and may damage the main insulation!
• To dampen the oscillations we recommend using the associated Active Interface
Module. For specific details, refer to the documentation for the drive system being
used or contact your local Siemens office.
Note
The corresponding Active Interface Module must be used when operated with an Active
Line Module controlled infeed unit.