Active Line Modules are always operated together with an Active Interface Module, which contains the associated Clean Power Filter and pre-charging circuit. The integrated line filter ensures compliance with the EMC requirements for the "second environment".

The Active Line Module and Active Interface Module are supplied as a complete, fully wired unit, i.e., the customer does not need to supply any further cables or carry out any other wiring tasks.

Parallel connection of Active Line Modules to increase power rating

For configuring a drive line-up with higher outputs, Active Line Modules are available, which can be operated in parallel on a common Line Connection Module. Up to 4 identical Active Line Modules can be arranged to the left and right of the Line Connection Module. Up to 2 Active Line Modules each can be arranged on the left and right.

The power connections on the Active Line Module on the left of the Line Connection Module are a mirror image (Article No. with "C" in the next to last position, example: 6SL3730-7T.41.-.BC3), which results in a very compact design for the line infeed.

If a second Active Line Module has to be arranged on the right side, the option B91 must be specified for the Line Connection Module and for the first Active Line Module on the right side. The second Active Line Module on the right side must be also specified with option B93. If a second Active Line Module has to be arranged on the left side, the option B92 must be specified for the Line Connection Module and for the first Active Line Module on the left side. The second Active Line Module on the left side must be also specified with option B94.

Please note that only Active Line Modules with exactly the same power rating may be connected in parallel. The potential for imbalances in current distribution means that a current derating of 5 % applies; this must be taken into account when the modules are dimensioned.

When configuring, it must be ensured that the maximum DC link capacitance for the drive line-up that can be charged through the Active Line Modules is not exceeded.

A connection of the Active Line Modules in parallel using DRIVE-CLiQ must be taken into consideration.

For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.