ABB Relion 670 series, Technical Reference Manual

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When the signal is within measurable limits on both channels, a direct comparison of
the two A/D converter channels can be performed. If the validation fails, the CPU will
be informed and an alarm will be given for A/D converter failure.
The ADx_Controller also supervise other parts of the A/D converter.
4.2.3 Function block
IEC09000787 V1 EN
Figure 24: INTERRSIG function block
4.2.4 Output signals
Table 18: INTERRSIG Output signals
Name Type Description
FAIL BOOLEAN Internal fail
WARNING BOOLEAN Internal warning
CPUFAIL BOOLEAN CPU fail
CPUWARN BOOLEAN CPU warning
4.2.5 Setting parameters
The function does not have any parameters available in the local HMI or PCM600.
4.2.6 Technical data
Table 19: Self supervision with internal event list
Data Value
Recording manner Continuous, event controlled
List size 40 events, first in-first out
1MRK505222-UUS C
Section 4
Basic IED functions
83
Technical reference manual