Safe Stop 1 (Ss1, Time Controlled) - Siemens Sinamics S120 Function Manual

Safety Integrated basic functions

9.5 Safe Stop 1 (SS1, time controlled)

Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p9601 SI enable, functions integrated in the drive (Control Unit)
● r9772 CO/BO: SI Status (Control Unit)
● r9872 CO/BO: SI Status (Motor Module)
● r9773 CO/BO: SI Status (Control Unit + Motor Module)
● r9774 CO/BO: SI Status (group STO)
● p0799 CU inputs/outputs sampling time
● r9780 SI Monitoring clock cycle (Control Unit)
● p9801 SI enable, functions integrated in the drive (Motor Module)
● r9880 SI Monitoring clock cycle (Motor Module)
9.5 Safe Stop 1 (SS1, time controlled)
9.5.1 SS1 (time controlled) with OFF3
General description
The "Safe Stop 1" (SS1) function allows the drive to be stopped in accordance with
EN 60204-1, Stop Category 1. The drive decelerates with the OFF3 ramp (p1135) once
"Safe Stop 1" is selected and switches to "Safe Torque Off" once the delay time set in
p9652/p9852 has elapsed.
CAUTION
If the "Safe Stop 1" function (time-controlled) function has been selected by parameterizing
a delay in p9652/p9852, STO can no longer be selected directly via terminals.
Functional features of Safe Stop 1
SS1 is enabled when p9652 and p9852 (delay time) are not equal to "0".
● Setting parameter p9652/p9852 has the following effect:
Setting
p9652/p9852 = 0
p9652/p9852 > 0
466
Effect
STO enabled
STO enabled and SS1 not enabled (cannot
therefore be selected)
SS1 enabled
Control mode for Basic Functions
Via terminals
Via PROFIsafe
Via PROFIsafe or terminals
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions