Siemens SIMOTICS T-1FW6 - Selecting the Drive System Components for the Power Connection

Configuration
5.2 Configuring workflow
1FW6 Built-in torque motors
108 Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9
5.2.9
Selecting the drive system components for the power connection
The drive system components for the power connection are selected on the basis of the
peak and continuous currents that occur in the duty cycle. If more than one motor is
operated in parallel on a single power unit, the total values of the peak and continuous
currents must be taken into account.
NOTICE
Damaged main insulation
In systems where direct drives are used on 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 rating of the infeed/regenerative feedback module
• The type of infeed/regenerative feedback module (particularly when an HFD
commutating reactor is already present)
• The number of axes
• 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 the use of the associated Active Interface
Module or an HFD reactor with damping resistor. For specific details, refer to the
documentation of the drive system being used or contact your local Siemens office.
Note
The corresponding Active Interface Module or the appropriate HFD line reactor must be used
to operate the Active Line Module controlled infeed
unit.