Siemens SINAMICS G130 Manual page 120

Safety Integrated Extended Functions
6.14 Forced dormant error detection
Note
STO is triggered when a test stop is carried out for the Safety functions. STO should not be
selected prior to selecting the test stop, and the axis should not be in operation.
Forced dormant error detection F-DI/F-DO of TM54F through test stop
An automatic test stop function is available for forced dormant error detection within the F-
DIs/DOs test.
To ensure that the test stop function of the TM54F can be used, the F-DIs that are used
must be interconnected in accordance with the following wiring example. The digital inputs of
F-DI0 to F-DI4 must be connected to the "L1+" power supply. The digital inputs of F-DI5 to F-
DI9 must be connected to the "L2+" power supply.
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Safety Integrated
Function Manual, 05/2010, A5E03264275A