Fault Acknowledgment; Overview Of The F-Dis - Siemens Sinamics S120 Function Manual

5.4.1

Fault acknowledgment

You have the following options of acknowledging TM54F faults after troubleshooting:
● POWER ON
● Falling edge of the signal "Internal Event ACK" with subsequent acknowledgment on the
Control Unit ("fail-safe acknowledgment").
5.4.2

Overview of the F-DIs

Description
Fail-safe digital inputs (F-DI) consist of 2 digital inputs. For the 2nd digital input, in addition
cathode (M) of the optocoupler is fed out in order to allow the connection of an output of an F
control system with switched ground (for this purpose, the anode must be connected to 24 V
DC).
Parameter p10040 is used to determine whether an F-DI is operated as NC/NC or NC/NO
contact. The status of each DI can be read at parameter r10051. The bits of both drive
objects are logically AND'ed and return the status of the relevant F-DI.
Test signals from F-DOs and interference pulses can be filtered out using the input filter
(p10017), so that they do not cause any faults.
E x planation of terms:
NC c ontact / NC c ontact: To select the safety function, a "zero level" must be present at both
inputs.
NC c ontact / NO c ontact: To select the safety function, a "zero level" must be present at
input 1 and a "1 level" at input 2.
The signal states at the two associated digital inputs (F-DI) must assume the same status
configured in p10040 within the monitoring time set in p10002.
To enable forced dormant error detection (test stop), connect the digital inputs of F-DI 0 ... 4
of the TM54F to the dynamic voltage supply L1+ and the digital inputs to F-DI 5 ... 9 to L2+.
(For further information on forced dormant error detection (test stop), see the relevant
function description in Chapter "Forced dormant error detection (test stop) (Page 160)").
Table 5- 12
Mo dule
TM54F
Safety Integrated
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Overview of the fail-safe inputs in the SINAMICS S120/S150 List Manual:
Fu n ction diagram
2893
2894
Control of the safety functions
5.4 Control via TM54F
In puts
F-DI 0 ... 4
F-DI 5 ... 9
191