6.12 Selecting safety function when a safety function is active
The table below lists the notes regarding the behavior of your drive if you select more than
one safety function at the same time.
Some cases do not affect the behavior of your drive. If, for example, the safety function STO
is active, the motor torque remains switched off regardless of which inverter function you also
select.
Table 6-11 Interaction between two safety functions
Select STO Select SS1 Select SLS Select SDI
STO is active --- No effect No effect No effect
SS1 is active (Page 304) --- No effect
1)
No effect
1)
SLS is active (Page 305) (Page 309) --- (Page 315)
SDI is active (Page 306) (Page 310) (Page 313) ---
SSM is ac‐
tive
(Page 307) (Page 311) (Page 314) (Page 316)
1)
Exception: When SS1 is active and the following conditions are simultaneously satisfied, the inverter
initiates a STOP A:
- The motor speed exceeds the SLS limit or exits the SDI tolerance window
- STOP A is set as fault response for SLS or SDI
Operation
6.12 Selecting safety function when a safety function is active
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 303
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