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•
Normal micro-processor watchdog function.
•
Checking of digitized measuring signals.
•
Other alarms, for example hardware and time synchronization.
The self-supervision function status can be monitored from the local HMI or from
the Event Viewer in PCM600.
Under the Diagnostics menu in the local HMI, the actual information from the self-
supervision function can be reviewed. The information can be found under
Main
menu/Diagnostics/Internal events
or
Main menu/Diagnostics/IED status/
General
. The information from the self-supervision function is also available in the
Event Viewer in PCM600.
IEC15000414-2-en.vsdx
IEC15000414 V2 EN-US
Figure 380:
IED general status in local HM
The self supervision records internal signal changes in an internal event list. A
maximum of 40 internal events are stored in a first-in, first-out manner.
GUID-B481701F-05B4-4B29-83D4-18F13886FEBE V1 EN-US
Figure 381:
Self-supervision event list in local HMI
A self-supervision summary can be obtained by means of an output relay with
potential free alarm contact (INTERNAL FAIL) located on the power supply
1MRK 506 382-UEN A
Section 18
Security
Line distance protection REL650 2.2 IEC
787
Technical manual
Содержание RELION 650 SERIES
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