Siemens SINAMICS S120 Function Manual page 274

Commissioning
6.5 Forced dormant error detection (test stop)
Executing the forced checking procedure (test stop)
If the converter signals alarm A01699 or A01697, you must initiate the forced checking
procedure (test stop) at the next opportunity.
These alarms do not affect the operation of your machine. You should shut down the drive
before performing the forced checking procedure (test stop).
Note
Internal selection of STO
Controlling the forced checking procedure (test stop) causes STO to be selected internally.
In this case, drives that were previously not stopped, or that do not have a holding brake,
coast down.
Initiating the forced checking procedure (test stop)
● Extended/Advanced Functions
– You define the signal with which the converter tests its circuits for speed monitoring.
– To ensure that the forced checking procedure (test stop) is performed without error, it
– If you select the forced checking procedure (test stop), the converter checks the
● Basic Functions
The converter checks its circuits for interruption of the torque-generating energy feed to
the motor for one of the following conditions:
– After the power supply has been connected (POWER ON).
– Each time after selecting the function STO or SS1.
– For the forced checking procedure (test stop) of the Extended Functions.
Note
Additional information
• You will find detailed information on forced checking procedure (test stop), in Chapter
"Forced checking procedure (test stop) (Page 172)."
• You will find a description of the forced checking procedure (test stop) of the TM54F in
Section "Forced checking procedure (test stop) of the TM54F (Page 313)."
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Alternatively, the test can be performed automatically every time the power supply is
switched on (POWER ON).
is not permissible that STO is active.
Extended/Advanced Functions and Basic Functions circuits.
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated