79
IPM [IGBT] breakdown diagnostics (Inverter PCB)
1. Pr
e
p
a
r
a
tions
bef
or
e
c
h
ec
kin
g
1) Pow
e
r O
ff
.
2
) IPM
fa
ilur
e
,
d
is
c
h
a
r
ge
mo
de
m
a
y not work prop
e
rly. Th
e
r
ef
or
e
, w
a
it mor
e
th
a
n 15 minut
e
s
af
t
e
r th
e
Pow
e
r O
ff
.
3
) R
e
mov
e
a
ll o
f
th
e
Inv
e
rt
e
r PCB
c
onn
ec
tors
a
n
d
wir
e
th
a
t is
f
ix
ed
a
s s
c
r
e
w.
(In
c
lu
de
wir
e
th
a
t is
f
ix
ed
to
c
ompr
e
ssor
a
n
d
DC R
eac
tor.)
4) Pr
e
p
a
r
e
th
e
d
i
g
it
a
l multi t
e
st
e
r.
2
. Insp
ec
tion M
e
tho
d
1) R
efe
r to Fi
g
ur
e
1
a
n
d
T
ab
l
e
1, r
e
sp
ec
tiv
e
ly th
e
r
e
sist
a
n
ce
v
a
lu
e
a
n
d
d
io
de
volt
age
v
a
lu
e
m
ea
sur
e
.
2
) A
cc
or
d
in
g
to th
e
c
rit
e
rion in T
ab
l
e
1 to
de
t
e
rmin
e
wh
e
th
e
r th
e
fa
ilur
e
o
f
IPM.
Division
M
ea
sur
ed
Point
Crit
e
rion
R
e
m
a
rk
+
-
M
ea
sur
e
th
e
r
e
sist
a
n
ce
v
a
lu
e
s
P-IGBT U
Mor
e
th
a
n
3
0
M
ea
sur
e
m
e
nt
e
rror
ca
n o
cc
ur
f
or r
ea
sons su
c
h
a
s th
e
initi
a
l
m
ea
sur
e
m
e
nt
c
on
de
ns
e
r
d
is
c
h
a
r
ge
.
M
ea
sur
ed
ov
e
r
a
t l
ea
st thr
ee
tim
e
s.
P-IGBT
V
P-IGBT
W
U
N-IGBT
V
N-IGBT
W
N-IGBT
M
ea
sur
e
th
e
d
io
de
volt
age
v
a
lu
e
s
U
P-IGBT
0.
3
~0.7V
V
P-IGBT
W
P-IGBT
N-IGBT
U
N-IGBT
V
N-IGBT
W
< T
ab
l
e
1 >
< Fi
g
ur
e
1 >
ࢉ؟ਫ਼ 3&%
Inv
e
rt
e
r PCB
Содержание AG042KSVANH
Страница 102: ...98 1 2 3 4 5 6 8 9 10 11 13 12 14 7 ASSY PCB MAIN HYDRO cont Model All models name is commonness ...
Страница 104: ...100 3 2 1 5 4 6 7 8 9 10 11 12 13 14 15 16 5 2 ASSY PCB MAIN Model All models name is commonness ...
Страница 106: ...102 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 5 3 ASSY PCB SUB FAN Model All models name is commonness ...
Страница 109: ...105 1 2 4 3 5 6 7 8 9 10 11 5 5 ASSY PCB SUB EMI PF 9 H power model only cont Model AG070KSV666 Series ...
Страница 111: ...107 5 6 ASSY PCB MAIN HUB Model All models name is commonness DC 1 2 3 4 5 6 7 8 9 10 11 12 ...
Страница 113: ...109 ASSY PCB MAIN HUB cont Model All models name is commonness AC 1 1 2 3 4 5 6 7 8 9 10 11 ...
Страница 115: ...111 5 7 ASSY PCB INVERTER PF 8 Model AG042 056KSV666 Series 4 2 3 5 1 8 9 7 6 ...
Страница 117: ...113 ASSY PCB INVERTER PF 9 cont Model AG070KSV666 Series 10 8 4 9 7 6 11 12 13 1 2 3 5 ...
