Risk Analysis - LSIS Susol UTS800 Manual Del Usuario

합본 Manual_800_1200AF_4 2014.7.17 5:46 PM 페이지32 위너스3

5. Risk Analysis

1) Risk Analysis occurrence conditions
The same phenomenon appears, contact your nearest LSIS sales office.
Related Function Error No.
Rating Plug
ADC
RAM
ROM
MTD
KNOB
Trip Relay Setting
when Rating plug is not attached to OCR.
1 not recognized even after Rating plug is inserted.
when there is an error to resister of Rating plug.
when Rating plug not matching to CT Rating is inserted (In case of Below 45% and above 100%)
2
when setting value of Dip switch does not correspond to rating of Rating plug.
Such a Mounting failure as disconnection of ADC related circuit, Bad soldering.
Failure of OP-AMP, Analog switch, resistor, capacitor related ADC
3
Malfunction of manual integrator
Error of Function related to ADC
4 Malfunction of MCU RAM
5 Malfunction of MCU Flash
when connecting line of MTD and OCR is disconnected by vibration.
6 connecting WIRE to MTD is disconnected.
when there is an error to input pattern applied by PCB
Difference between setting value and recognition value of Knob occurs.
7 Recognition value of Knob is '0' (selecting 0 is forbidden.)
Recognition value of Knob is above '9' (generally 1~9 selection is available.)
CAUTION
Condition for Error occurrence
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