Siemens Sinamics S120 Manual page 37

System architecture with a central Control Unit
On the SINAMICS S120, the drive intelligence is combined with closed-loop control functions
into Control Units. These units are capable of controlling drives in the vector, servo and V/f
modes. They also perform the speed and torque control functions plus other intelligent drive
functions for all axes on the drive. Inter-axis connections can be established within a
component and easily configured in the STARTER commissioning tool using a mouse.
Functions for higher efficiency
● Basic functions: Speed control, torque control, positioning functions
● Intelligent starting functions for independent restart after power supply interruption
● BICO technology with interconnection of drive-related I/Os for easy adaptation of the
● Integrated safety functions for rational implementation of safety concepts
● Regulated infeed/regenerative feedback functions for preventing undesirable reactions on
DRIVE-CLiQ – the digital interface between SINAMICS components
The SINAMICS S120 components, including the motors and encoders, are interconnected
via a joint serial interface called DRIVE-CLiQ. The standardized cables and connectors
reduce the variety of different parts and cut storage costs. Encoder evaluations for
converting standard encoder signals to DRIVE-CLiQ are available for third-party motors or
retrofit applications.
Electronic rating plates in all components
An important digital linkage element of the SINAMICS S120 drive system are the electronic
type plates integrated in every component. They allow all drive components to be detected
automatically via a DRIVE-CLiQ link. As a result, data does not have to be entered manually
during commissioning or component replacement – helping to ensure that drives are
commissioned more reliably.
The rating plate contains all the relevant technical data about that particular component. In
the motors, for example, this data includes the parameters of the electric equivalent circuit
diagram and characteristic values for the built-in motor encoder.
In addition to the technical data, the rating plate includes logistical data (manufacturer ID,
order number, and ID). Since this data can be called up electronically on site or remotely, all
the components used in a machine can always be individually identified, which helps simplify
servicing.
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
drive system to its operating environment
the supply, allowing recovery of braking energy and ensuring greater stability against line
fluctuations.
System overview
2.3 Introduction
37