STO – Safe Torque Off

When the STO safety sub-function is active, the power supply to the motor is interrupted and the drive cannot generate any torque. The STO safety sub-function corresponds to a non-controlled stop according to EN 60204‑1, stop category 0.

	=	STO safety sub-function active
v	=	Speed
t	=	Time
t1	=	Point in time at which STO is activated.

INFORMATION

The motor coasts to a halt or is stopped mechanically.

Controlled standstill is preferred, if possible.