Siemens SINAMICS G120C Function Manual

6.3.2 Selecting and deselecting STO when the motor is switched on
Select STO
Function
1. The machine control selects the STO safety function via a fail-safe digital input or via
PROFIsafe.
2. The inverter then safely switches off the motor torque.
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Figure 6-9 Time response of the STO safety function (Safe Torque Off)
Inverter signals Parameters Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI F-DO
STO active (basic functions) r9773.1 ✓ --- ✓
STO deselection (basic functions) r9773.0 ✓ ✓ ---
STO active (extended functions) r9722.0 ✓ --- ✓
Deselect STO (extended functions) r9720.0 ✓ ✓ ---
Ready to switch on r0052.0 --- --- ---
ON/OFF1 r0054.0 --- --- ---
Operation
6.3 Safe Torque Off (STO)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
224 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD

Siemens SINAMICS G120C Specifications

General

Brand	Siemens
Model	SINAMICS G120C
Category	Inverter
Language	English