Siemens SINAMICS G115D Operating Instructions Manual page 226

Advanced commissioning
6.14 Safe Torque Off (STO) safety function
A filter in the converter suppresses brief signals as a result of the bit pattern test or contact
bounce.
The filter extends the response time of the safety function by the debounce time.
Setting the filter for fail-safe digital inputs
Precondition
You are online with Startdrive.
Procedure
1. Navigate to the filter settings.
2. Set the debounce time for the F-DI input filter.
3. Set the discrepancy time for the simultaneity monitoring.
You have set the input filter and the simultaneity monitoring of the fail-safe digital input.
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Parameters
Parameter
p9650
p9651
Further information
Debounce times for standard and safety functions
The debounce time p0724 for "standard" digital inputs has no influence on the fail-safe input
signals. Conversely, the same applies: The F-DI debounce time does not affect the signals of
the "standard" inputs.
If you use an input as a standard input, set the debounce time using parameter p0724 .
If you use an input as a fail-safe input, set the debounce time as described above.
224
Description
SI F-DI changeover discrepancy time
(processor 1) [ms]
SI STO debounce time (processor 1) [ms] Debounce time of the fail-safe digital input
Setting
Tolerance time to change over the fail-safe
digital input for the basic functions.
Factory setting: 500 ms
for the basic functions.
Factory setting: 1 ms
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
SINAMICS G115D distributed drive