Siemens Sinamics G120 Function Manual page 33
Safety integrated
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Also See for Sinamics G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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Application examples for the STO function
The STO function is suitable for applications where the motor is already at a standstill or will
come to a standstill in a short, safe period of time through friction. STO does not shorten the
run-on of machine components with high inertia.
Examples
When the Emergency Stop button is
pressed, a stationary motor should not
unintentionally start.
A central Emergency Stop button must
prevent the unintentional acceleration
of several motors that are at a stand‐
still.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
3.7 An overview of the principle of operation of the safety functions
Possible solution
● Interconnect the Emergency Stop pushbutton with a fail-
safe inverter digital input.
● Select STO via the fail-safe digital input.
● Evaluate the Emergency Stop button in a central control.
● Select STO via PROFIsafe.
Description
33
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