K48, Sensor Module Cabinet-Mounted Smc20; General Information; Safety Information - Siemens SINAMICS S120 Manual

8.10

K48, Sensor Module Cabinet-Mounted SMC20

8.10.1

General information

Availability of option
This option is available for the following S120 Cabinet Modules:
● Booksize Cabinet Kits
● Chassis format Motor Modules
Description
The SMC20 Sensor Module is used to simultaneously detect the actual motor speed and the
path length. The signals emitted by the incremental encoder are converted here and made
available to the closed-loop controller via the DRIVE-CLiQ interface for evaluation purposes.
The following encoders can be connected to the SMC20 Sensor Module:
● Incremental encoder sin/cos 1 V
● EnDat and SSI absolute encoders
The motor temperature can also be detected using KTY84-130 temperature sensors or PTC
thermistors.
The maximum encoder cable length is 100 m.
Note
The Booksize Cabinet Kit with Double Motor Module has two of these encoder modules built
in.
8.10.2

Safety information

Note
Only connect one encoder system
Only one encoder system may be connected per Sensor Module.
NOTICE
Risk of equalization currents via the electronics ground
Make sure there is no electrical connection between the encoder system housing and the
signal lines and the sensor system electronics.
If this is not carefully observed, under certain circumstances the system will not be able to
reach the required interference immunity level (there is then a danger of equalization
currents flowing through the electronics ground).
Cabinet Modules
Manual, 03/2013, A5E03263538A
8.10 K48, Sensor Module Cabinet-Mounted SMC20
pp
Options
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