Control Of "Sto" And "Ss1" For Sinamics S120 Chassis - Siemens SINAMICS G130 Manual

7.3 Control of "STO" and "SS1" via terminals on the Control Unit and the Motor/Power Module
7.3.4

Control of "STO" and "SS1" for SINAMICS S120 Chassis

Description
The safety functions contained in the standard ("Safe Torque Off" and "Safe Stop 1") can be
used with the Motor Module.
Note
Refer to the circuit diagrams enclosed for the interconnections for your device.
Note
The Safety functions must be activated prior to use via parameter assignment. An
acceptance test must be performed and an acceptance log must be created.
The following Safety Integrated Basic Functions (terms and definitions in accordance with
IEC 61800-5-2) can be activated:
● Safe Torque Off (STO)
● Safe Stop 1 (SS1) (time controlled)
Note
The integrated safety functions, starting from the Safety Integrated (SI) input terminals of the
SINAMICS components (Control Unit, Motor Module), satisfy the requirements of
EN 61800-5-2, EN 60204-1, and DIN EN ISO 13849-1 category 3 (formerly EN 954-1), as
well as the requirements for Performance Level (PL) d and IEC 61508 SIL2.
In addition, most of the SINAMICS safety functions have been certified by independent
institutes. An up-to-date list of certified components is available on request from your local
Siemens office.
Recommended application
This variant is used when:
● Activation will be executed optically isolated with a voltage of 24 V DC.
● Working with control lines that are shorter than 30 m.
● When devices are used in plants with low spatial elongation (watch out for the drop in
Safety Integrated
Function Manual, 05/2010, A5E03264275A
voltage at 24 V DC!).
Controlling the safety functions
157