BECKHOFF AX5805 Installation - Manual (Page 54)

Product description
52 AX5805
3.6.5.5 Description of the SOS safety function
Figure 28: Description of the Safe Operating Stop function (SOS)
When the SOS function is activated, the position of the motor is captured (s_cp), and a position window is
defined around this position (s_cp +/- s_Zero_SOS). The current position of the motor is monitored, and as
long as the motor remains within this window, the motor remains enabled with torque applied.
If one of the boundaries is crossed, the safety function STO is activated and torque is removed from the
motor. This reaction cannot be configured.