Siemens Sinamics S110 Function Manual page 346

Safety Integrated Functions
8.3 System features
 Encoder faults within a single-encoder system are detected by means of various HW
 The category 0 stop function to EN 60204-1 (STO or STOP A to Safety Integrated)
 Safety Integrated is not capable of detecting parameterization errors made by the
 Power Modules or the motor must be replaced with a device of the same type, as the
If an internal or external fault occurs, none or only some of the parameterized safety
functions are available during the STOP-F response triggered by the fault. This must be
taken into account when a delay time between STOP F and STOP B is parameterized. This
applies in particular to vertical axes.
NOTICE
Changing the EDS with safe motion monitoring
An encoder which is used for Safety functions must not be switched over when a data set is
switched over.
The Safety functions check the safety-relevant encoder data for changes when data sets
are switched over. If a change is detected, fault F01670 is displayed with a fault value of
10, which results in a non-acknowledgeable STOP A. The safety-relevant encoder data in
the various data sets must therefore be identical.
344
WARNING
and SW monitoring functions. It is not allowed to disable these monitoring functions and
they must be parameterized carefully. Depending on the fault type and responding
monitoring function, stop function category 0 or 1 in accordance with EN 60204-1 (fault
response functions STOP A or STOP B in accordance with Safety Integrated) is
selected.
means that the drives are not decelerated but instead coast to standstill (the time
required to coast to standstill depends on the kinetic energy). This must be included in
the logic of the protective door lock, for example, by means of logic operation of "SSM
with encoder (n<nx)". For Safety without encoder, you need to use other measures to
ensure that the protective door remains locked until the drive has come to a standstill.
machine manufacturer. The required safety level can only be reached by by means of
an elaborate acceptance test.
parameter settings will otherwise lead to an incorrect Safety Integrated response. The
corresponding drive must be re-commissioned after an encoder was replaced.
WARNING
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual