SIEMENS
6/6
Siemens CR 1 · 2015
6
Drive systems
SINAMICS S120 built-in devices
■
Overview
With its separate power units and Control Units, the SINAMICS
S120 drive system can be perfectly adapted to a wide variety of
different drive tasks.
The Control Unit is selected according to the number of drives to
be controlled and the required performance level, while the po-
wer unit must be rated to meet the energy requirements of the
system. The connection between the Control
Unit and power unit
is made very simply using the digital system interface
DRIVE-CLiQ.
Control Units
CU310-2 PN and SIMOTION D4x5-2 Control Units
CU310-2 DP and CU310-2 PN Control Units
CU310-2 Control Units are designed to control a single drive.
They feature as standard a PROFIBUS interface (CU310-2 DP)
or PROFINET interface (CU310-2 PN) and a TTL/HTL encoder
evaluation circuit.
CU320-2 Control Unit
The CU320-2 Control Unit has been designed to control multiple
drives. A CU320-2 Control Unit is capable of operating up to
•
6 drives in vector control mode.
The CU320-2 Control Unit can be used to control a group of
single drives and implement basic drive technology functions.
SIMOTION D Control Units
SIMOCRANE Basic Technology uses the SIMOTION D435-2
Control Unit from the SIMOTION Motion Control System product
range for the implementation of standard functions and the mo-
tion control of all main drives of a crane.
The STARTER commissioning tool is used to commission and
diagnose the various Control Units. The SCOUT engineering
software, which includes the STARTER tool, is required for
SIMOTION D Control Units.
For further information about STARTER, see the section
"Starter Commissioning Tool". For further information about
the SIMOTION Motion Control System and SCOUT, see the
section SIMOCRANE Basic Technology.
Power Modules
The simplest version of a SINAMICS S120 drive system consists
of a CU310-2 Control Unit and a Power Module. A line rectifier, a
voltage-source DC link and an inverter for supplying a motor are
integrated in the Power Module.
Power Module in blocksize format with CU310-2 Control Unit
Power Modules are designed for single drives which are not
capable of regenerating energy to the supply. Generated energy
produced during braking is converted to heat via braking resis-
tors.
Power Modules can also be operated by a CU320-2 Control
Unit, SIMOTION D4x5-2 or CX32-2 Controller Extension, e.g. in
configurations where a single drive has been added to a multi-
axis drive group. In this case, the Power Modules in blocksize
format must be equipped with the CUA31/CUA32 Control Unit
Adapter. This is connected with the CU320-2 Control Unit,
SIMOTION D4x5-2 or CX32-2 Controller Extension using
DRIVE-CLiQ. Power Modules in chassis format can be directly
connected to the Control Unit using a DRIVE-CLiQ cable.
M
3 ~
~
~
G_D211_XX_00042
Power
Module
Control
Unit
DRIVE-CLiQ
© Siemens AG 2015