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2) Relation between IH status signal and IH errors
(L: Low level, H: High level).
Check timing
Signal
Status Error code
Counter
(08-400)
H1ERR1 H1ERR2
When the power is
turned ON, or when
both the front cover
and jam access cover
is closed
L L Abnormality detected at ini-
tialization
* An abnormal status is
detected at the initializa-
tion.
C471 11
On usual L L Power voltage abnormality
* AC power is not supplied
to the IH board.
C472 12
L H Switching element (IGBT)
abnormality
* Wire breakings, short-cir-
cuits abnormal fluctua-
tions or overheating (=
insufficient cooling) of
IGBT
C480 15
IH coil abnormality caused by
continuously applied current
* Current has been continu-
ously applied to any one
of the IH coils for 15 sec-
onds or more
H H Input current lower limit
abnormality
* Wire breakings or
improper installation of IH
coil
C490 17
H L No abnormality - -
Front cover or jam
access cover is
opened
L L
(Other than the above)
Power voltage abnormality
when the cover is opened
* An abnormal status is
detected when the cover
is opened
C475 10
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