Overview Of The F-Dos - Siemens Sinamics S110 Function Manual

8.6.4

Overview of the F-DOs

Description
The failsafe digital output (F-DO) consists of two digital outputs. At the first digital output
DO16+ the 24 V potential connected to the terminal 24V1 is switched, and at the second
terminal the ground potential connected to terminal M1 is switched (see diagram below
"Overview F-DO").
To enable forced dormant error detection, the F-DO must be dynamized with the
parameterized function (p9559) (for additional information on forced dormant error detection,
see the corresponding function description in the "Extended Functions" section).
M1
24 V1
X131.5
X131.6
X131.7
X131.8
Figure 8-13 F-DO Overview
Signal sources of the F-DO
The following signals are available for outputs for the F-DO. Setting using parameter
p10042:
● Power removed (STO active)
● SS1 active
● SS2 active
● SOS active
● SLS active
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
DO16+
DO16-
+24 V1
24 V1
M1
M1
Safety Integrated Functions
8.6 Controlling the safety functions
M
r0747.16 r10052.0
M
r10152.0
F-DO 0
(2857.8)
337