Siemens Sinamics S120 Function Manual page 201

● 2nd digital input with additional tap of the optocoupler cathode for connecting an output of
a fail-safe control grounded through a switch.
More information on this topic is available on the Internet at:
Parameterizing and configuring safety hardware
(http://support.automation.siemens.com/WW/view/de/39700013)
Function diagrams (see SINAMICS S120/S150 List M anual)
• 2870
Ov erview of important parameters (see SINAMICS S120/S150 List Manual)
• p10002
• p10017
• p10040
• r10051.0...2
Safety Integrated
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
WA RNING
Danger to life due t o incorrect s witching states c aused by quiescent currents in the
s witched-off state
In contrast to mechanical switching contacts (e.g. Emergency Stop switches), quiescent
currents can still flow through semiconductor switches even when they are switched off.
This can lead to false switching states if digital inputs are not connected correctly.
• Pay attention to the conditions for digital inputs/outputs specified in the relevant
manufacturer documentation.
• Use only outputs that have a maximum quiescent current of 0.5 mA when "OFF" (in
accordance with IEC 61131 part 2, Chapter 5.2 (2008)).
SI Extended Functions - CU310-2 (F-DI 0 ... F-DI 2)
SI Motion F-DI switchover discrepancy time (CPU 1)
SI Motion digital inputs debounce time (CPU 1)
SI Motion, F-DI input mode (CPU 1)
CO/BO: SI Motion digital inputs status (CPU 1)
5.6 Control of the Extended Functions via F-DI (for CU310-2)
Control of the safety functions
201