Fault Tracing; Using Information On The Local Hmi - ABB REB 551-C3*2.5 Installation And Commissioning Manual

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Fault tracing

Fault tracing

Using information on the local HMI

If an internal fault has occurred, the local HMI displays information under:
TerminalReport
SelfSuperv
Under these menus the indications of eventual internal failure (serious fault) or internal warning
(minor problem) are listed.
Shown as well, are the indications regarding the faulty unit according to
Table 20: HMI information
HMI information Signal name
InternFail INT--FAIL
Intern Warning INT--WARNING
CPU-modFail INT--CPUFAIL
CPU-modWarning INT--CPUWARN
ADC-module INT--ADC
Slotnn-XXXyy INT--IOyy
Real Time Clock INT--RTC
Time Sync INT--TSYNC
Also the internal signals, such as INT--FAIL and INT--WARNING can be connected to binary
output contacts for signalling to a control room.
In the Terminal Status - Information, the present information from the self-supervision function
can be viewed. Indications of failure or warnings for each hardware module are provided, as well
as information about the external time synchronisation and the internal clock. All according to
table 21. Loss of time synchronisation can be considered as a warning only. The REx 5xx ter-
minal has full functionality without time synchronisation.
Activates sum- Description
mary signal
Internal fail sum-
mary
Internal warning
summary
INT--FAIL Main processing
module failed
INT--WARNING Main processing
module warning
(failure of clock,
time synch., fault
locator or distur-
bance recorder)
INT--FAIL A/D conversion
module failed
INT--FAIL I/O module yy
failed
INT--WARNING Internal clock is
reset - Set the clock
INT--WARNING No time synchroni-
sation
Chapter 16
Fault tracing and repair
table 20.