Testing Fail-Safe Digital Inputs - Siemens Sinamics G120 Function Manual

6.2.2

Testing fail-safe digital inputs

Testing sensors and fail-safe digital inputs
The inverter tests its fail-safe digital inputs and the connected sensors with a signal change at
the inputs. We recommend that you test the fail-safe digital inputs together with the forced
checking procedure (test stop).
Procedure
To test the fail-safe digital inputs, proceed as follows:
1. Actuate the relevant sensor.
2. Check the following:
– The expected safety function is active.
– The inverter signals a fault.
You have tested the fail-safe digital inputs.
Inverter signals
Internal event
STO active (basic functions)
STO active (extended functions)
SS1 active (basic functions)
SS1 active (extended functions)
SLS active
SDI+ active
SDI- active
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
6.2 Regularly testing the safety functions
Parameter Included in the PROFI‐
safe telegram
r9722.7
r9773.1
r9722.0
r9773.6
r9722.1
r9722.4
r9722.12
r9722.13
Can be interconnec‐
ted with
F-DI
✓ ---
✓ ---
✓ ---
✓ ---
✓ ---
✓ ---
✓ ---
✓ ---
Operation
F-DO
✓
✓
✓
✓
✓
✓
✓
✓
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