Siemens SINAMICS S120 Function Manual page 519

The following power units can be connected in parallel:
● Basic Line Modules (BLM)
Carefully observe the subsequently described conditions under which BLMs can be
connected in parallel.
● Smart Line Modules (SLM)
Carefully observe the subsequently described conditions under which SLMs can be
connected in parallel.
● Active Line Modules (ALM)
Carefully observe the subsequently described conditions under which ALMs can be
connected in parallel.
● Motor Modules
A connection can only be implemented in the VECTOR control mode.
Note
Deactivate edge modulation
With a Chassis parallel connection and motor with a winding system offset by 30° (p7003 = 2),
the converter can fail with activated edge modulation.
In this case, deactivate the edge modulation (p1802 ≤ 4).
Drive functions
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Version Condition
6-pulse and 12-pulse Implementation is only permissible with the associated line reactors.
Additional information
Detailed information on the specified conditions is provided in "SINAMICS - Low Voltage Engineer‐
ing Manual (https://support.industry.siemens.com/cs/ww/en/view/83180185)".
Version Condition
6-pulse and 12- Implementation is only permissible with the associated line reactors.
pulse
6-pulse The parallel connection must be implemented using a Control Unit.
12-pulse The parallel connection must be implemented using 2 Control Units.
Additional information
Detailed information on the specified conditions is provided in "SINAMICS - Low Voltage Engineer‐
ing Manual (https://support.industry.siemens.com/cs/ww/en/view/83180185)".
Version Condition
6-pulse and 12- Implementation is only permissible with the associated Active Interface Module.
pulse
6-pulse The parallel connection must be implemented using a Control Unit.
12-pulse The parallel connection must be implemented using 2 Control Units. The im‐
plementation is realized in the master-slave mode.
Additional information
Detailed information on the specified conditions is provided in "SINAMICS - Low Voltage Engineer‐
ing Manual (https://support.industry.siemens.com/cs/ww/en/view/83180185)".
Function modules
9.10 Parallel connection of power units
517