Internal Signals - ABB Relion 670 Series Technical Reference Manual

Section 4
Basic IED functions
4.2.2.1
80
Some signals are available from the INTERRSIG function block. The signals from this
function block are sent as events to the station level of the control system. The signals
from the INTERRSIG function block 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.
Individual error signals from I/O modules can be obtained from respective module in
the Signal Matrix tool. Error signals from time synchronization can be obtained from
the time synchronization block TIMEINTERRSIG.

Internal signals

Self supervision provides several status signals, that tells about the condition of the
IED. As they provide information about the internal status of the IED, they are also
called internal signals. The internal signals can be divided into two groups.
• Standard signals are always presented in the IED, see
• Hardware dependent internal signals are collected depending on the hardware
configuration, see Table
Explanations of internal signals are listed in
Table 15: Self-supervision's standard internal signals
Name of signal
FAIL
WARNING
NUMFAIL
NUMWARNING
RTCERROR
TIMESYNCHERROR
RTEERROR
IEC61850ERROR
WATCHDOG
LMDERROR
APPERROR
SETCHGD
SETGRPCHGD
FTFERROR
16.
Table 17.
Description
Internal Fail status
Internal Warning status
CPU module Fail status
CPU module Warning status
Real Time Clock status
Time Synchronization status
Runtime Execution Error status
IEC 61850 Error status
SW Watchdog Error status
LON/Mip Device Error status
Runtime Application Error status
Settings changed
Setting groups changed
Fault Tolerant Filesystem status
1MRK505222-UUS C
Table 15.
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