6.5.2
Selecting and deselecting SS1 when the motor is switched on
6.5.2.1
SS1 basic function
Select SS1
Function
1. The higher-level control selects the SS1 function via a fail-safe digital input or via
PROFIsafe safe communication.
2. If the motor is switched on when SS1 is selected, the inverter brakes the motor with the
OFF3 ramp-down time.
3. After the delay time, the inverter safely switches off the motor torque with the STO safety
function.
'HOD\
7KHPRWRUFRDVWVGRZQ
WRDVWDQGVWLOO
6SHHG
*UHHQRQ
W
W
66DFWLYH
672DFWLYH
<HOORZRQ
<HOORZRQ
<HOORZIODVKHVVORZO\
W
'HVHOHFW66
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/('5'<
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Figure 6-17 Braking behavior and diagnostics of the safety function SS1 (Safe Stop 1)
Inverter signal
Parameter
Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI
F-DO
STO active (basic functions)
r9773.1
✓
---
✓
SS1 active (basic functions)
r9773.6
✓
---
✓
Deselect SS1 (basic functions)
r9773.5
✓
✓
---
Ready to switch on
r0052.0
---
---
---
ON/OFF1
r0054.0
---
---
---
Operation
6.5 Safe Stop 1 (SS1)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
238
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD