Safety Integrated
Function Manual, 08/2023, A5E03264275A
35
Controlling the safety functions
5.1 Control possibilities
The following options for controlling Safety Integrated Functions are available:
Table 5- 1 Controlling the Safety Integrated Functions
Terminals (on the
Control Unit and
Motor/Power
PROFIsafe
based on
PROFIBUS or
TM545F Control without
selection
Using a Control Unit, control is possible either via PROFIsafe or TM54F. Mixed operation is not
permissible.
The safety-related input and output terminals (F-DI and F-DO) act as an interface between the
SINAMICS Safety Integrated functionality and the process.
A dual-channel signal applied to an F-DI (Fail-safe Digital Input, safety-oriented digital input =
safe input terminal pair) controls the active monitoring of the activation/deactivation of
safety functions.
An F-DO (Fail-safe Digital Output, safety-oriented digital output = safe output terminal pair)
delivers a dual channel signal representing feedback from the safety functions.
Dual-channel processing of I/O signals
A dual-channel structure is realized for data input/output and for processing fail-safe I/O
signals. All requests and feedback signals for fail-safe functions should be entered or picked
off using both channels.