Technical data

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
397
Enabling the Safe Direction function
The "Safe Direction" function is enabled via the following parameters:
● p9501.17 = 1, p9301.17 = 1
8.5.10.2 Safe Direction without encoder
Function
Set p9306 = p9506 = 1 or p9506 = p9306 = 3 (factory setting = 0) to activate Safety
Integrated functions without encoder. You can also make this setting by selecting "Without
encoder" on the STARTER safety screen.
Differences between Safe Direction with encoder and Safe Direction without encoder
● For Safe Direction without encoder, after pulse suppression the drive is unable to
determine the current speed. For this operating state, the behavior is defined with the
parameters p9309.8/p9509.8:
– p9309.8 = p9509.8 = 1
The status signal displays "inactive".
– p9309.8 = p9509.8 = 0
The status signal displays "active", and the drive takes on the state STO.
● Due to the less precise position recognition, "Safe Direction without encoder" requires a
larger tolerance (p9364/p9564) compared with the function with encoder.
Note
A change in the direction of rotation using parameter p1821 is not recognized by "SDI
without encoder". For this reason, the limitation of SDI from r9733 no longer functions.