SOS – Safe Operating Stop

The SOS safety subfunction prevents the motor from deviating from the stop position by more than a specified absolute value. The drive delivers the power to keep the motor in position. If the specified absolute value is exceeded, the SOS safety subfunction will be triggered and a fault response (STO) will be initiated at the same time.

	=	SOS safety subfunction monitored
	=	STO safety subfunction active
v	=	Speed
t	=	Time
t1	=	Point in time at which SOS is activated.
t2	=	Point in time at which SOS is deactivated.