Commissioning; Additional Drive In Addition To The Parallel Connection - Siemens SINAMICS S120 Function Manual

8.10.2

Commissioning

During commissioning, power units connected in parallel are treated like a power unit on the
line or motor side.
Note
Parallel connection of Motor Modules in vector control
You have an offline project in vector control with parallel-connected Motor Modules and then
transfer it online to the Control Unit. To save the project in the Control Unit, you must
perform a POWER ON. The next time you switch on you receive an error message that the
online topology is inconsistent. Load the project now to the programming device. This
resolves the inconsistency.
For further detailed information about commissioning, restrictions regarding operation and
parameterization options, please refer to the following manuals:
● SINAMICS S120 Commissioning Manual with STARTER
● SINAMICS S120/S150 List Manual Parameters r7002 ff.
8.10.3

Additional drive in addition to the parallel connection

Frequently, a controlled auxiliary drive is required in addition to the main drives, e.g. as
excitation controller for shaft-mounted generators in shipbuilding or as lubricating pump
drive, fan drive etc.
For drive units with power units connected in parallel (Line Modules, Motor Modules) an
additional drive can be supplied as an auxiliary drive. This drive object is supplied via a
separate Motor Module from the common DC link and controlled from the CU320-2 via a
dedicated DRIVE-CLiQ socket.
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Function modules
8.10 Parallel connection of power units
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