Technical data

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
379
Changeover of SLS limit values
The changeover is executed binary-coded via two F-DIs or two PROFIsafe control bits. The
speed selection status can be checked using the r9720.9/r9720.10 parameters. Parameters
r9722.9 and r9722.10 indicate the actual speed limit, bit r9722.4 must carry a "1" signal.
Table 8- 10 Changeover of speed limits:
F-DI for bit 1 (r9720.10) F-DI for bit 0 (r9720.9) Speed limit
0 0 p9331[0]/p9531[0]
0 1 p9331[1]/p9531[1]
1 0 p9331[2]/p9531[2]
1 1 p9331[3]/p9531[3]
The changeover from a lower to a higher speed limit takes effect without any delay.
The changeover from a higher to a lower limit triggers a delay time which can be set at the
corresponding parameter (p9351 and p9551).
CAUTION
The limit value SLS1 must be defined as the lowest Safely Limited Speed limit.
The limit value SLS level 1 is activated after two unacknowledged discrepancy errors; in
other words, 0 is the failsafe value for the 2 F-DIs for speed level selection. The SLS limit
values must, therefore, always be parameterized in ascending order, i.e. with limit value
SLS1 as the lowest speed and limit value SLS4 as the highest speed.
Responses
Speed limit value exceeded:
● Configured subsequent stop STOP A / B / C / D by means of p9363/p9563
● Safety message C01714/C30714
System errors:
● STOP F
● Safety messages C01711/C30711