Advanced commissioning
6.11 Safe Torque Off (STO) safety function
Converter with the control units CU240D-2
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Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
Figure 6-22 Filter to suppress brief signals
The filter extends the response time of the safety function by the debounce time.
Parameter
Description
p9650
F-DI changeover tolerance time (factory setting: 500 ms)
Tolerance time to change over the fail-safe digital input for the basic functions.
p9651
STO debounce time (factory setting: 1 ms)
Debounce time of the fail-safe digital input for the basic functions.
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.
6.11.3.6
Setting the forced checking procedure (test stop)
Requirement
You are online with Startdrive.
Procedure
1.
Select the screen form for setting the forced checking procedure.
2.
Set the monitoring time to a value to match your application.
3.
Using this signal, the inverter signals that a forced checking procedure (test stop) is
required.
Interconnect this signal with an inverter signal of your choice.
