Overview Of The F-Dos - Siemens SINAMICS S120 Function Manual

5.4.4

Overview of the F-DOs

Failsafe digital outputs (F-DO) consist of 2 digital outputs and 1 digital input that checks the
switching state for forced checking procedure (test stop). The 1st digital output switches 24 V
DC, and the 2nd switches the ground of the power supply of X514 (TM54F).
The status of each F-DO can be read at parameter r10052. The status of the associated DI
can be read at parameter r10053 (only available for TM54F_SL (TM54F Slave Module)).
The actuator connected to the F-DO can also be tested under specific conditions as part of
forced checking procedure (test stop). See Section "Forced checking procedure (test stop) of
the TM54F (Page 313)".
Table 5- 17
Module
TM54F
F-DO signal sources
A drive group contains several drives with similar characteristics. The groups are
parameterized at the p10010 and p10011 parameters.
The following signals are available for interconnecting (p10042, ..., p10045) each one of the
four drive groups with the F-DO:
• STO active
• SS2 active
• SLS active
• Safe State
• Active SLS level bit 0
• SDI positive active
• SLP active
• Internal event
The following (safe state) signals can be requested via p10039[0...3] for each drive group
(index 0 corresponds with drive group 1 etc.):
• STO active (power removed/pulses
suppressed)
• SS2 active
• SLS active
• SDI positive active
Safety Integrated
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Overview of the failsafe outputs in the SINAMICS S120/S150 List Manual:
Function diagram
2895
Control of the safety functions
Outputs
F-DO 0 ... 3
• SS1 active
• SOS active
• SSM feedback active
• SOS selected
• Active SLS level bit 1
• SDI negative active
• Active SLP area
• SS1 active
• SOS active
• SLP active
• SDI negative active
5.4 Control via TM54F
Associated checking
inputs
DI 20 ... 23
235