ABB RES670 Technical Manual page 760

Section 21
Security
754
IEC15000414 V2 EN-US
Figure 290: 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 291: 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 module. This
contact is closed when the IED either does not have auxiliary power, or when one or
more error conditions are present in the IED (for example harware error).
Some output signals are available from the INTERRSIG function block. The signals
from this function block are sent as events via IEC 61850 to the station level of the
control system. These signals can also be connected to binary outputs for signalization
via output relays or they can be used as conditions for other functions if required/
desired.
IEC15000414-2-en.vsdx
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
Technical manual