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TOSHIBA
Phenomenon
Dn P28
ting of 1JC
does not go
below 100%.
move to A.LM of
1 N S T and U B
fails to be
produced.
is not
produced.
Check point
Protection
function
is locked.
Output is not
selected at RY O/P
SEL (P30).
In O/P RELAY CONPIG
inverted.
External
connection
is incorrect or
I oose.
Protection
function
i s
l o c k e d .
--
-
-
selected-at RY O/P
In O/P RELAY CONFIG
inverted.
is incorrect or
I oose.
Possible cause
Normal.
PRE-ALM setting of UC
has a range between
100% and 300%.
Normal.
ALM setting is not
provided for I NST
and UB.
Normal.
Activate the
protective
Normal.
Select(l) to activate.
Normal.
Match the logic.
Bad connection.
Make proper
connection.
Normal.
Activate the
protective
Normal.
Select(l) to activate.
Normal.
Match the logic.
Bad connection.
Make proper
connection.
What to do
function.
function.
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