Internal Signals - ABB Relion 650 Series Technical Manual

Section 14
Security
14.5.5.1
604
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.
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 INTERRSIG function block via two outputs TSYNCERR and RTCERR .

Internal signals

Self supervision provides several status signals that give information about the
internal status of the IED. For this reason they are also called internal signals.
These internal signals , available on local HMI under Main menu/
Diagnostics/IED status/General, can be divided into two groups.
• Standard signals are always presented in the IED, see table 487.
• Hardware dependent internal signals are collected depending on the hardware
configuration, see table 488.
Table 487: Self-supervision's standard internal signals
Name of signal Description Displayed on
FAIL Internal
Fail status
WARNING Internal
Warning
status
RTCERROR Real Time
Clock
status
TIMESYNCHERROR Time
Synchroni
zation
status
RTEERROR Runtime
Execution
Error
status
Table continues on next page
Reasons for activation
local HMI as
Internal fail This signal will be active if one or more of the
following internal signals are active;
LMDERROR, WATCHDOG, APPERROR,
RTEERROR, or any of the HW dependent
signals
Internal This signal will be active if one or more of the
warning following internal signals are active;
RTCERROR, IEC61850ERROR
Real time This signal will be active when there is a
clock hardware error with the real time clock.
Time synch This signal will be active when the source of the
time synchronization is lost, or when the time
system has to make a time reset.
Runtime This signal will be active if the Runtime Engine
execution failed to do some actions with the application
threads. The actions can be loading of settings
or parameters for components, changing of
setting groups, loading or unloading of
application threads.
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