Siemens SIMOTICS S-1FK2, Operating Instructions Manual

Page: 146 / 768

6.8.1.5 Commissioning step 4
Test stop (forced checking procedure)
To meet the requirements of the EN ISO 13849‑1 and IEC 61508 standards in terms of timely
fault detection, the converter must test its safety-related circuits regularly - at least once a year
- for correct functioning.
The "Test stop timer" exists for the forced checking procedure; by default, it is set to 8760 hours
= 1 year. After this time, the drive signals that a forced checking procedure is necessary by
issuing error message ("
Acceptance test required
"). The remaining time up to the test
stop is determined automatically and displayed.
The test stop (forced checking procedure) for the Safety Integrated Basic Functions is
performed by selecting STO and then deselecting it. As a consequence, the timer is reset and
the active message acknowledged.
If a different time interval is required for the test stop (e.g. as the result of a risk analysis),
change the interval as described in the following.
Figure 6-25 Configuring test stop (forced checking procedure)
Commissioning and diagnostics in the Web server
6.8 Safety settings
SINAMICS S210 servo drive system
144
Operating Instructions, 12/2017, A5E41702836B AA