Functions
5.12 Safety functions
CU240S and CU240E Control Units, FW 3.2
206 Operating Instructions, 03/2009, A5E02440075B AA
5.12.7 Settings of the SS1, SLS and SBC safety functions
Always parameterize the fail-safe functions using the STARTER PC tool. Parameterizing fail-
safe functions using the BOP is always very time consuming due to the fact that parameters
must be set twice.
The safety functions are parameterized according to the following schematic:
1. Go online with STARTER, open the screen with the safety functions and click on the
button
2. Enable the safety-related parameters by entering the correct password
3. Change the parameters of the safety function
4. Complete parameterization using the button
5. Confirm the checksums of the safety-related parameters
You will find a detailed description of the SS1, SLS and SBC functions in the Function
Manual: (http://support.automation.siemens.com/WW/view/en/31676845
)
Safety function SS1 (Safe Stop 1)
Table 5- 91 Safety-related parameters for SS1
Parameters Description
P9603 = …
P9803 = …
Selecting the signal source of the safety functions
P9680 = …
P9880 = …
Ramp deceleration
You will find a calculation formula for the ramp deceleration in the Function Manual
P9681 = …
P9881 = …
Ramp-down time of the braking ramp
P9682 = …
P9882 = …
Minimum frequency for the standstill detection
P9761 = … Password for the safety functions
P9799 = …
P9899 = …
r9798 = …
r9898 = …
Checksum of the safety-related parameters
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