Siemens Sinamics G120 Function Manual page 269

Inverter signal
Fail-safe acknowledgment
ON/OFF1
Deselecting SLS after a discrepancy
Procedure
To deselect SLS, proceed as follows:
1. Remove the discrepancy.
2. Acknowledge the discrepancy message with the fail-safe acknowledge signal via a fail-safe
digital input: F‑DI = 0 → 1 → 0.
Alternatively, you can acknowledge the message in one of the following ways. However,
the drive stops in these cases:
– Select the STO function and then deselect again: F‑DI = 1 → 0 → 1.
– Select the SS1 function and then deselect again: F‑DI = 1 → 0 → 1.
– Switch off the inverter power supply voltage and on again.
3. Acknowledge the inverter with the "standard" acknowledge signal.
You have acknowledged the discrepancy message and deselected SLS.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Parameters Included in the PROFI‐
safe telegram
r9720.7
r0054.0
6.6 Safely Limited Speed (SLS)
Can be interconnec‐
ted with
F-DI
✓ ✓
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Operation
F-DO
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