Siemens SINAMICS S120 Equipment Manual page 18

System Overview
1.2 SINAMICS S120 drive system
PC tools
SIZER and
STARTER
SITOP
24 V DC
Terminal
Modules
Option
Boards
Incoming
power
Line reactor
Line filter
Power/signal line
DRIVE-CLiQ line
Control Unit
1
Active Interface Module
2
Active Line Module
3
4 Single Motor Module
5 Double Motor Module
6
Sensor Module
Fig. 1-3 Overview of the SINAMICS S120 system
New system architecture with a central Control Unit
Electronically coordinated individual drives work together to perform your drive tasks. Higher-
level controllers operate the drives to achieve the required coordinated movement. This
requires cyclic data exchange between the control and all the drives. This exchange always
had to take place via a field bus, which required a great deal of time and effort for installation
and configuration. SINAMICS S120 takes a different approach. A central Control Unit
controls the drive for all connected axes and also establishes the technological links between
the drives and/or axes. Since all the required data is stored in the central Control Unit, it
does not need to be transferred. Inter-axis connections can be established within a Control
Unit and easily configured in the STARTER commissioning tool using a mouse.
Simple technological tasks can be carried out by the SINAMICS S120 Control Unit itself. For
complex numerical or motion-control tasks, high-performance SIMOTION D modules are
used instead.
1-4
Type Booksize
1
3 4 5
6
Motors Motors with Motors with
standard
without integrated
encoder
encoder DRIVE-CLiQ
interface
SITOP
24 V DC
Terminal
Module
Option
Boards
Incoming
power
SINAMICS S120 Equipment Manual, Edition 12/2007, 6SL3097-2AM00-0BP4
PROCESS
Type Chassis
1
2 3
4
Motors with
Motors
integrated
without
DRIVE-CLiQ
encoder
interface
Chassis Power Units Liquid Cooled
FIELD
4
4
6
Motors with
standard
encoder