Siemens SINAMICS S120 Function Manual page 250

Control of the safety functions
5.6 Control of the Extended/Advanced Functions via F-DI (for CU310-2)
F-DO features
● Each F-DO with failsafe configuration consisting of 2 digital outputs plus one digital input
for checking the switching state for the forced checking procedure (test stop)
● Status parameters r10051/r10052
Note
Display using r0747.16
If digital outputs DO16+ and DO16- act as F-DO, parameter r0747 "CU, digital outputs
status", bit 16 "DO 16 (- / X130.7, 8)" does not display the level defined by Safety Integrated.
Instead, it displays the ineffective setpoint state according to BICO signal source p0746 "BI:
CU signal source for terminal DO 16".
Function diagrams (see SINAMICS S120/S150 List Manual)
• 2870
• 2873
• 2875
• 2876
• 2877
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p10039
• p10042[0...5] SI F-DO 0 signal sources
• r10051.0...2
• r10052.0
248
SI functions - CU310-2 (F-DI 0 ... F-DI 2)
SI functions CU310-2 failsafe digital output (F-DO 0)
SI functions - CU310-2 control interface
SI functions - CU310-2 safe state selection
SI functions, CU310-2 assignment (F-DO 0)
SI Safe State signal selection (CPU 1)
CO/BO: SI Digital inputs status (CPU 1)
CO/BO: SI Digital output status (CPU 1)
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated