Technical data

Safety Integrated Functions
8.4 Safety Integrated Basic Functions
Function Manual
358 Function Manual, 06/2012, 6SL3097-4AB10-0BP4
Functional features of "Safe Stop 1"
SS1 is enabled when p9652 and p9852 (delay time) are not equal to "0".
● The precondition is the Basic Functions or STO are enabled via terminals and/or
PROFIsafe:
– p9601.0/p9801.0 = 1 (enable via terminals)
– p9601.3/p9801.3 = 1 (enable via PROFIsafe)
● The settings for parameters p9652/p9852 shown below have the following effect:
Setting Effect Control type for Basic Functions
p9652/p9852 = 0 STO enabled Via terminals
STO enabled and SS1 not enabled (which
also means that it cannot be selected)
Via Profisafe
p9652/p9852 > 0 SS1 enabled Via Profisafe or terminals
● When SS1 is selected, the drive is braked along the OFF3 ramp (p1135) and STO/SBC is
automatically initiated after the delay time has expired (p9652/p9852).
As soon as the function is selected, the delay time will start to run 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 de-selected immediately.
Note
So that the drive is able to travel down the OFF3 ramp completely and any motor holding
brake present can be applied before the pulse is switched off, the delay time can be set
as follows:
• Motor holding brake parameterized: Delay time ≥ p1135 + p1228 + p1217
• Motor holding brake not parameterized: Delay time ≥ p1135 + p1228
● The selection is realized through two channels - however braking along the OFF3 ramp,
only through one channel.
● The input terminals can be debounced to prevent signal faults triggering other faults.
Parameters p9651 and p9851 are used to set filter times.
Enabling function Safe Stop 1
The "Safe Stop 1" (SS1) function is enabled via the following parameters:
● SS1 via terminals or PROFIsafe:
– By entering the delay time in p9652 and p9852