Siemens SINAMICS G120 Function Manual page 50

Description
2.6 Safe Direction (SDI)
If you do not switch on the motor within 5 seconds, then the inverter again goes into the STO
state and no longer responds to the ON command. To switch the motor on again, proceed as
follows:
● Select STO.
● Deselect STO again.
● Switch on the motor within 5 seconds (ON command).
Further information
The behavior of the motor when several safety functions are simultaneously selected is
described in Section: Interaction of the safety functions (Page 56).
The behavior of the inverter when an internal fault is detected or in the event of a
discrepancy at a fail-safe digital input can be found in Section: Response of Safe Direction
(SDI) to faults (Page 201).
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Safety Integrated Function Manual, SINAMICS G120 and G120C
Function Manual, 01/2011, FW 4.4, A5E03052391B AB