Inserting Measuring Systems; Overview - Siemens Sinamics S120 Comissioning Manual

Commissioning
4.3 Creating a project
4.3.7

Inserting measuring systems

4.3.7.1

Overview

Definition
For encoders, a distinction is made between 2 basic measuring system types:
● Motor encoder is normally mounted on the motor shaft so that motor motion (angle of
rotation, rotor position etc.) can be directly measured. Motor encoders supply the speed
actual value that is incorporated in the closed-loop control (closed-loop speed and current
control), so that for fast controllers, the speed actual value must also be supplied as
quickly enough. This is the reason that high quality encoders must be used for motor
encoders.
– Siemens motors that have already been configured are created in the device view with
– DRIVE-CLiQ motors are inserted together with an encoder. The drive and encoder
● Machine encoders are installed in the machine. Using machine encoders, for example,
you synchronize the speed of a belt to another belt, or you determine the position of a
workpiece. Basic, mounted encoders can be used in this case as these values are
normally not required in a fast speed controller or current controller cycle.
Available measuring systems (encoder)
The following encoder types are supported in Startdrive:
● DRIVE-CLiQ encoder
These encoders are parameterized when downloading - and after an upload, are
correctly displayed.
● SIN/COS encoders
Incremental encoders, which supply a sinusoidal/cosinusoidal type signal, are also
available with SSI protocol.
● HTL/TTL encoders
Incremental encoders, which supply a square wave pattern, are also available with SSI
protocol.
● ENDAT 2.1
Absolute encoders, which are controlled via the ENDAT 2.1 protocol.
● SSI encoder
Absolute encoders, which are controlled via the SSI protocol.
● Resolvers
Rotary position encoders.
78
the matching encoder and the encoder evaluation.
parameters are transferred when you then load the configuration to the drive
(download). The correct motor and encoder configuration is available after an upload.
Commissioning Manual, (IH3), 07/2016, 6SL3097-4AA10-0BP0
Commissioning with Startdrive