F30773
MM Safety Test Stop Fault
Siemens · DAsl Diagnostics and Alarms
What does F30773 mean?
A safety test stop fault has occurred on the Motor Module (MM) side. This fault indicates that while the MM's internal states may be as expected, the required state was not present on the readback input of the other channel (Control Unit). This suggests an inconsistency in the safety test routine between the CU and MM, affecting the overall safety integrity and requiring investigation.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If multiple test stop faults exist, clearing the current one will allow the next queued fault to be signaled for diagnosis.
Source: Siemens DAsl Diagnostics and Alarms
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