Siemens Sinamics G120 Function Manual page 229

Case 2: Response of the drive for STO of the extended functions
You have selected the extended functions via onboard terminals.
Figure 6-11
The inverter does not set the error bit of the safety functions (= internal event).
After the tolerance time has expired, the inverter signals the discrepancy (fault C01770 or
C30770).
Inverter signal
Internal event
STO active (extended functions)
Deselect STO (extended 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
Response of safety function STO in the event of a discrepancy
Parameter Included in the PROFI‐
safe telegram
r9722.7
r9722.0
r9720.0
p2103
r9720.7
r0054.0
6.3 Safe Torque Off (STO)
Can be interconnec‐
ted with
F-DI
✓ ---
✓ ---
✓ ✓
--- ---
✓ ✓
--- ---
Operation
F-DO
✓
✓
---
---
---
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