Siemens SINAMICS S120 Function Manual page 40

Extended Functions
4.1 Safe Stop 1 (SS1, time and acceleration controlled)
● The Safe Acceleration Monitor (SBR) function is active in the ramp down phase (refer to
Commissioning
The function is activated by entering the delay time in p9356 and p9556, or the shutdown
speed in p9360 and p9560.
In order to enable the deceleration of the drive to a standstill, the time set in p9360/p9560
must be of sufficient length to allow deceleration of the drive by means of the OFF3 ramp
(p1135) below the shutdown speed set in p9356/p9556.
The shutdown speed setting in p9356/p9556 must exclude any risk to man and machine as
of this speed and with subsequent coasting down by means of pulse inhibit signal.
Responses
Speed limit violated (SBR):
● STOP A
● Safety message C01706/C30706
System errors:
1. STOP F with subsequent STOP A
2. Safety message C01711/C30711
Prerequisite
The time set in p9356/9556 must be dimensioned so that after selection, the drive brakes
down to a standstill.
Status for "Safe Stop 1"
The status of the "Safe Stop 1" function is displayed using the following parameters:
● r9722.1 CO/BO: SI motion status signals, SS1 active
● r9722.0 CO/BO: SI motion status signals, STO active (power removed)
Overview of key parameters (see SINAMICS S List Manual)
● p1135 OFF3 ramp-down time
● p9301 SI motion enable safety functions (Motor Module)
● p9501 SI motion enable safety functions (Control Unit)
● p9348 SI motion SBR actual speed tolerance (Motor Module)
● p9548 SI motion SBR actual speed tolerance (Control Unit)
● p9356 SI motion pulse cancelation delay time (Motor Module)
● p9556 SI motion pulse cancelation delay time (Control Unit)
● p9360 SI motion pulse cancelation shutdown speed (Motor Module)
40
the chapter "Safe Acceleration Monitor").
Function Manual, (FHS) , 07/2007 Edition, 6SL3097-2AR00-0BP0
Safety Integrated