Advantages / Customer Benefits - Siemens SINAMICS S120 Manual

SINAMICS S120 Fail-Safe Drives
When an Emergency Stop is requested, both of the drives are stopped by
the SS1 safety function integrated in the drive. The torque-generating
power feed to the motor is interrupted in a safety-relevant fashion using
safe pulse cancellation. The restart inhibit is activated.
Each drive is assigned a safety door. If this safety door is opened, then the
associated motor is operated at a lower speed and the set speed limit value
is safely monitored using the SLS function. The other drive is not influ-
enced.
Other ways of using the TM54F terminal expansion module and controlling
the safety functions via PROFIsafe are described in additional function ex-
amples.
2.2

Advantages / customer benefits

•
The safety functions integrated in the drive are controlled in a
simple fashion
•
Simple design/configuring using standardized technology
•
The existing system can be simply and quickly expanded.
•
Space-saving configuration using integrated safety functions –
additional hardware is not required
Complex safety concepts can be implemented using this as basis.
I DT Safety Integrated Page 7/43
Entry ID: 28424136
MC-FE-I-005-V11-EN