System Rules - Siemens SINAMICS S120 Commissioning Manual

A.5.2

System rules

A maximum of 24 drive objects (DOs) can be connected to one Control Unit.
Control Units
● The CU320-2 Control Unit is a multi-axis Control Unit for operating Infeed Modules and
Motor Modules in the booksize format. Sensor Modules can also be connected.
Motor Modules / control modes
For the CU320-2 Control Unit the following applies:
● The CU320-2 Control Unit is a multi-axis Control Unit for operating Motor Modules in the
booksize format.
● For multi-axis modules, each axis counts individually (one Double Motor Module = two
Motor Modules).
● There can be a maximum of 12 drive objects of the VECTOR type present concurrently.
– A maximum of 6 drive objects can be operated concurrently in vector control.
– A maximum of 12 drive objects can be operated concurrently with V/f control.
● Mixed operation of control types:
The following are permissible:
– Mixed operation of servo control and V/f control.
– Mixed operation of vector control and V/f control.
The following are not permissible:
– Mixed operation of servo control and vector control.
The following applies when connecting Motor Modules in parallel:
● It is not permissible to connect Motor Modules in parallel.
Line Modules
For the CU320-2 Control Unit the following applies:
● Only one drive object of the Smart Line Module (SLM), Basic Line Module (BLM) and
Active Line Module (ALM) types is permissible in each case.
● Mixed operation of an Active Line Module with a Smart Line Module (SLM) or with a Basic
Line Module (BLM) is not permissible.
● Mixed operation of a drive object of the Smart Line Module (SLM) type with a drive object
of the Basic Line Module (BLM) type is permissible.
● Two further Voltage Sensing Modules can be operated with the "Network transformer"
function module for Active Line Modules (ALM).
Commissioning with Startdrive
Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1
A.5 System rules, sampling times and DRIVE-CLiQ wiring
Appendix
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