Fault Tracing; Using Information On The Built-In Mmi; Using Front-Connected Pc Or Sms - ABB REC 561 User Manual

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5 Fault tracing

5.1 Using information on
the built-in MMI
Table 1: Self-supervision signals
MMI information
InternFail
Intern Warning
CPU-modFail
CPU-modWarning OK /WARNING INT--
ADC-module
Slotnn-XXXyy
Real Time Clock
Time Sync
5.2 Using front-connected
PC or SMS
Installation and commissioning
If an internal fault has occurred, the built-in MMI displays information
under:
Terminal Status
Self Superv
Here, there are indications of internal failure (serious fault), or internal
warning (minor problem).
There are also indications regarding the faulty unit, according to Table 1.
Status Signal name
OK / FAIL INT--FAIL
OK /WARNING INT--
WARNING
OK / FAIL INT--
CPUFAIL
CPUWARN
OK / FAIL INT--ADC
OK / FAIL INT--IOyy
OK /WARNING INT--RTC
OK /WARNING INT--TSYNC INT--
You can also connect the internal signals, such as INT--FAIL and INT--
WARN to binary output contacts for signalling to a control room.
In the Terminal Status information, you can view the current information
from the self-supervision function. Indications of failure or warnings for
each hardware module are provided, as well as information about the
external time synchronization and the internal clock, according to Table 1.
Recommendations are given on measures to be taken to correct the fault.
Loss of time synchronisation can be considered as a warning only. The
terminal has full functionality without time synchronisation.
Here two summary signals appear, self-supervision summary and CPU-
module status summary. These signals can be compared to the internal
signals as:
1MRK 580 166-XEN
Activates
summary Description
signal
Internal fail summary
Internal warning
summary
INT--FAIL Main processing module
failed
INT-- Main processing module
WARNING warning
(failure of clock, time
synch., fault locator or
disturbance recorder)
INT--FAIL A/D conversion
module failed
INT--FAIL I/O module yy failed
INT-- Internal clock is reset -
WARNING Set the clock
No time synchronisation
WARNING
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