Safe Torque Off (Sto)/Safe Stop 1 (Ss1) - Basis Function - Siemens SINUMERIK Series Function Manual

Commissioning - drive-based
3.9 Safety Integrated functions
3.9.2

Safe Torque Off (STO)/Safe Stop 1 (SS1) - basis function

In conjunction with a machine function or in the event of a fault, the "Safe Torque Off" (STO)
function is used to safely disconnect the torque-generating energy supply to the motor.
Precondition
The commissioning mode (Page 49) must be activated so that the parameters of this safety
function can be changed. A basic function must be set in the options (Page 64).
Settings
You can make the following settings in this window:
Figure 3-9
● Control Unit terminal (p9620[0])
Sets the signal source for the STO, SBC and SS1 functions of the Control Unit.
This is only relevant if a basic function via terminal is set in the options (Page 64). Otherwise,
the input field is deactivated.
● SS1 delay time (p9652)
Sets the delay time of the pulse cancellation in seconds for the function "Safe Stop 1" (SS1)
on the Control Unit to brake along the OFF3 down ramp (p1135).
● Braking response for SS1 (p9653)
Select a predefined braking response below the input field "SS1 delay time". Parameter
p9653 is preassigned depending on the selected braking response.
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Safe Torque Off - Safe Stop 1 - STO/SS1 Basic
Function Manual, 10/2015, 6FC5397-3EP40-5BA3
Safety Integrated