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Power supply failure KDU
Power supply failure KDU
START
START
Open t
Open t
he
he
cover of
cover of
the KDU
the KDU
Is the
Is the
LED lit?
LED lit?
Power supply
Power supply
probably OK
probably OK
Is
Is
voltage 25-26 =
voltage 25-26 =
24 VDC?
24 VDC?
Is
Is
voltage 29-30 =
voltage 29-30 =
24 VDC?
24 VDC?
24 VDC
24 VDC
missing check
missing check
fuse in
fuse in
MCU cabinet
MCU cabinet
Fuse OK?
Fuse OK?
I
I
s volt
s volt
ag
ag
e
e
24 VDC?
24 VDC?
Check external
Check external
power supply
power supply
Check cabling
Check cabling
Replace fu
Replace fu
s
s
e
e
Check green
Check green
LED D
LED D
11 on
11 on
KDU board
KDU board
Check vol
Check vol
tage
tage
outpu
outpu
t i
t i
n
n
MCU cabinet
MCU cabinet
Chang
Chang
e KD
e KD
U
U
I/O board
I/O board
probably OK
probably OK
Check flat
Check flat
cable/
cable/
change
change
KDU
KDU
I
I
s res
s res
i
i
s
s
t
t
ance
ance
25-29 and 26-30
25-29 and 26-30
<1 ohm?
<1 ohm?
No
No
Y
Y
e
e
s
s
Y
Y
e
e
s
s
No
No
Y
Y
e
e
s
s
Y
Y
e
e
s
s
No
No
Y
Y
e
e
s
s
No
No
No
No
No
No
Y
Y
e
e
s
s
Fig 08-10
Fig 08-10
3208100342
3208100342
O
O
p
p
e
e
r
r
a
a
t
t
i
i
n
n
g
g
T
T
r
r
o
o
u
u
b
b
l
l
e
e
s
s
3
3
4
4
S
S
G
G
-
-
2
2
0
0
0
0
4
4
1
1
4
4
-
-
0
0
4
4
Содержание 41508
Страница 3: ......
Страница 12: ...Appendix B Welding Precautions 200147...
Страница 22: ...Fuel Lubricating Oil Cooling Water 34SG 200303 03...
Страница 29: ...A Ap pp pe en nd di ix x A A E En nv vi ir ro on nm me en nt ta al l H Ha az za ar rd ds s 2 20 00 03 32 21 1...
Страница 73: ...Maintenance Tools 32 9801...
Страница 115: ...Engine Block with Bearings Cylinder and Oil Sump 34SG 9701...