xv) Start and trip status display
a) Normal condition
Under normal operating condition, all the light indicators are switched
off except the AUX indicator. If the RESET/STEP key is pressed, the
corresponding indicator and the 3-digit display will light up. After 6
minutes, the indicator and the 3-digit display will automatically switch
off if no further key is pressed.
b) Relay start condition
When the overcurrent elements or the earth-fault element measure an
input current higher than the set value, the relay starts and the START
indicator light up. If the measured current subsequently drops below
the set value before reaching trip condition, the START indicator will
switch off.
c) Relay trip condition
MK2000
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One of these indicators blinks to indicate the
source of tripping.
One of these indicators blinks to indicate high-
set or low-set tripping element.
The 3-digit display indicates the tripping value
Under relay trip condition, the START/TRIP
indicator lights up until the relay is reset.
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