| 摘要 |
<p>Errors, especially non-variable transient errors, occurring in at least one electric unit, especially a switching oriented unit, are detected by means of a leaky bucket counter that counts in a first direction according to a specific count value when an error occurs and counts in an opposite second direction at specific moments in time if no errors occur during the respective time span. A preventive alarm signal (FLT) is given when a first threshold count value (T1) is reached in the above-mentioned first direction. A second alarm signal (UNA) is given when a second threshold value (T2) located above the first threshold count value is reached or exceeded. The second alarm signal is linked to the disconnection of the monitored unit.</p> |
