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(5/5)
-'----1--
Failure
.. _.- ----- - - - - - - 1 - - - - - - - - -
Possible cause
I
Corrective Action
code
Blown
main
circuit
fuses
. lAC
,
fuse)
(DC
fuse)
I-BI~~-n-----
,
control
board
fuse
I
ShO~-;i~cuit-of--;~in
I
~~rcuit
capacitor
Extremely small input
impedance on incoming powerline
(Too large input kVA compared
to inverter capacity)
1
Inspect capacitor and
replace if necessary.
1 )
2)
3)
If the transformer KVA rating
is
10
times larger (or more)
than the inverter !<:VA rating,
AC input tine reactors will be
required to limit inrush
current into the inverter.
If the transformer KVA is
between 5 to 10 times the
inverter
KVA
rating,
AC
line
reactors may be required
depending on other transfor-
mer and power line factors.
Normally no line reactor is
required jf the transformer is
smaller than 5 times the
inverter KVA rating.
If any fuse has blown,
inspect driver board.
1 - - - - - - - - - - + - - - - - - - - - - - 1
I
Circuit ground fault on
inspect and eliminate cause fault
terminals Rand T.
and replace fuse if necessary.
12-6
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