Commissioning The Fail-Safe Functions - Siemens SINAMICS G120 Operating Instructions Manual

5.8

Commissioning the Fail-safe Functions

Available fail-safe functions
● Safe Torque Off (STO)
● Safe Stop 1 (SS1)
● Safely Limited Speed (SLS)
● Safe Brake Control (SBC).
The signals for STO, SS1 and SLS are connected to the Control Unit, an EM-Brake is
connected to the Power Module.
Command source for fail-safe functions
As command source for the fail-safe signals either the fail-safe terminals (60 ... 63) or
PROFIsafe can be used (see p9603 and p9803).
Warning
PROFIsafe address
The PROFIsafe address is per default identical to the PROFIBUS address. Due to safety
reasons it must be changed to a different value.
It must especially differ from the address determined by the DIP switches (see following
tables).
The PROFIsafe address needs to be changed as well in P9810 of the inverter as in the
higher level control system (in case of SIMATIC S7 in HW config), otherwise F1640 will
occur.
Note
Via terminal you can use up to two of the three fail-safe functions (STO, SS1 and SLS) while
via PROFIsafe all three functions are available.
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
Commissioning (software)
5.8 Commissioning the Fail-safe Functions
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