Siemens Sinamics G120 Function Manual page 247

Independent of the voltage levels available, the inverter sets the evaluation of the discrepant
fail-safe digital input into the safe state (= zero) until you acknowledge the inverter using a fail-
safe signal or you switch off the power supply voltage and switch it on again.
Inverter signal
Internal event
STO active (basic functions)
SS1 active (basic functions)
Deselect SS1 (basic functions)
"Standard" acknowledgment
Fail-safe acknowledgment
ON/OFF1
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
r9722.7
r9773.1
r9773.6
r9773.5
p2103
r9720.7
r0054.0
6.5 Safe Stop 1 (SS1)
Can be interconnec‐
ted with
F-DI
✓ ---
✓ ---
✓ ---
✓ ✓
--- ---
✓ ✓
--- ---
Operation
F-DO
✓
✓
✓
---
---
---
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