Function Diagrams And Parameters - Siemens Sinamics S120 Function Manual

Safety Integrated basic functions
9.5 Safe Stop 1 (SS1, time controlled)
CAUTION
During the delay time (p9652/p9852), for "Safe Stop 1 (time controlled) without OFF3" any
axis movement is possible as a result of the position controller.
Differences between "Safe Stop 1 (time-controlled) with and without OFF3"
Without OFF3, "Safe Stop 1 (time controlled)" functions in principle exactly the same way as
described in the previous Chapter "Safe Stop 1 (time controlled) with OFF3. Note, however,
the following differences:
● In order to activate "Safe Stop 1 (time controlled) without OFF3", additionally set p9653 to
● When SS1 is selected, the drive is not braked along the OFF3 ramp, but after the delay
9.5.3

Function diagrams and parameters

Function diagrams (see SINAMICS S120/S150 List Manual)
● 2810 STO (Safe Torque Off), SS1 (Safe Stop 1)
● 2811 STO (Safe Torque Off), safe pulse cancellation
Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p1135[0...n] OFF3 ramp-down time
● p1217 Holding brake closing time
● p1228 Pulse suppression delay time
● p9601 SI enable, functions integrated in the drive (Control Unit)
● p9650 SI SGE changeover tolerance time (Control Unit)
● p9651 SI STO/SBC/SS1 debounce time (Control Unit)
● p9652 SI Safe Stop 1 delay time (Control Unit)
● p9658 SI transition time STOP F to STOP A (Control Unit)
● r9772 CO/BO: SI Status (Control Unit)
● r9773 CO/BO: SI Status (Control Unit + Motor Module)
● r9774 CO/BO: SI Status (group STO)
● r9780 SI Monitoring clock cycle (Control Unit)
468
1.
time has expired (p9652/p9852), only STO/SBC is automatically initiated. After the
function has been selected, the delay timer runs down – even if the function is deselected
during this time. In this case, after the delay time has expired, the STO/SBC function is
selected and then again deselected immediately.
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions