SS1-r – Safe Stop 1 with monitoring of the deceleration ramp

When the SS1-r safety subfunction is active, the motor is brought to a standstill electrically. The deceleration is monitored. The STO safety subfunction is triggered when the monitored deceleration is exceeded or when standstill is reached.

The SS1-r safety subfunction corresponds to a controlled stop of the drive according to EN 60204‑1, stop category 1.

	=	SS1-r safety subfunction monitored
	=	STO safety subfunction active
v	=	Speed
t	=	Time
t1	=	Point in time at which SS1-r is activated and motor deceleration is triggered.
t2	=	Point in time at which STO is activated.