[
IX
Troubleshooting ]
- 133 -
HWE1517A
GB
4220
4225
(
108
)
Inverter
error
Voltage
related
problems
during
operation
Bus voltage drop protection
Momentary power failure/power failure
Power supply voltage drop (Inter-phase
voltage is 180 V or below.)
Voltage drop
• INV board CNDC2 wiring fault
• INV board fault (4220)
• Fan board fault (4225)
• 72C fault
• Diode stack failure
4220
4225
(
109
)
Bus voltage rise protection
Incorrect power supply voltage
• INV board fault (4220)
• Fan board fault (4225)
4220
4225
(
111
)
Logic error
Malfunction due to external noise
interference
• Faulty grounding
• Improper transmission and external
wiring installation
(Shielded cable is not used.)
• Low-voltage signal wire and high-
voltage wire are in contact.
(Placing the signal wire and power
wire in the same conduit)
• INV board fault (4220)
• Fan board fault (4225)
4220
4225
(
131
)
Voltage meter error at start up
(Bus voltage drop protection at start up
(detected by the Main unit side))
Power supply voltage drop
• INV board fault (4220)
• Fan board fault (4225)
4230
4235
Heatsink fault
(Heatsink overheat protection)
Power supply voltage drop (Inter-phase
voltage is 180 V or below.)
Clogged heatsink cooling air passage
• Fan motor fault
• INV board fan output fault
• THHS sensor fault
• IPM error (loose terminal screws,
cracked due to swelling)
4240
4245
)
w
o
l
f
r
i
a
d
e
c
u
d
e
r
(
r
i
a
f
o
g
n
il
c
y
c
-
t
r
o
h
S
n
o
i
t
c
e
t
o
r
p
d
a
o
l
r
e
v
O
Clogged heatsink cooling air passage
Power supply voltage drop (Inter-phase
voltage is 180 V or below.)
• THHS sensor fault
• Current sensor fault
• INV board fan output fault
• INV circuit fault
• Compressor fault
5301
5305
(
115
)
t
l
u
a
f
d
r
a
o
b
V
N
I
•
t
l
u
a
f
r
o
s
n
e
s
T
C
C
A
• Ground fault of the compressor and IPM
error
5301
5305
(
116
)
r
o
t
c
e
n
n
o
c
d
r
a
o
b
V
N
I
e
h
t
t
a
t
c
a
t
n
o
c
r
o
o
P
•
r
o
s
n
e
s
T
C
C
D
CNCT
• Poor contact at the INV board connector
DCCT
• Ground fault of the compressor and IPM
error
5301
5305
(
117
)
r
o
t
c
e
n
n
o
c
d
r
a
o
b
V
N
I
e
h
t
t
a
t
c
a
t
n
o
c
r
o
o
P
•
t
l
u
a
f
t
i
u
c
r
i
c
/
r
o
s
n
e
s
T
C
C
A
CNCT2 (ACCT)
• ACCT sensor fault
5301
5305
(
118
)
r
o
t
c
e
n
n
o
c
d
r
a
o
b
V
N
I
e
h
t
t
a
t
c
a
t
n
o
c
r
o
o
P
•
t
l
u
a
f
t
i
u
c
r
i
c
/
r
o
s
n
e
s
T
C
C
D
CNCT
• Poor contact at the INV board connector
DCCT
• DCCT sensor fault
• INV board fault
5301
5305
(
119
)
)
2
T
C
N
C
(
r
o
s
n
e
s
T
C
C
A
d
e
t
c
e
n
n
o
c
s
i
D
•
r
o
s
n
e
s
T
C
C
A
e
s
o
o
l
/
M
P
I
d
e
t
i
u
c
r
i
c
-
n
e
p
O
• ACCT sensor fault
• Broken compressor wiring
• INV circuit fault (IPM error etc.)
5301
5305
(
120
)
g
n
o
r
w
e
h
t
n
i
d
e
t
c
e
n
n
o
c
s
i
r
o
s
n
e
s
T
C
C
A
•
g
n
i
r
i
w
y
t
l
u
a
F
phase.
• ACCT sensor is connected in the wrong
orientation.
5110
(
01
) (
05
)
e
r
u
li
a
f
t
c
a
t
n
o
c
r
o
s
n
e
s
S
H
H
T
•
t
l
u
a
f
t
i
u
c
r
i
c
/
r
o
s
n
e
s
S
H
H
T
• THHS sensor fault
• INV board fault
0403
(
01
) (
05
)
l
o
r
t
n
o
c
n
e
e
w
t
e
b
r
o
r
r
e
n
o
i
t
a
c
i
n
u
m
m
o
C
•
r
o
r
r
e
n
o
i
t
a
c
i
n
u
m
m
o
c
l
a
i
r
e
S
board and INV board (noise interference,
broken wiring)
n
e
e
w
t
e
b
n
o
i
t
c
e
n
n
o
c
r
o
t
c
e
n
n
o
c
r
o
g
n
i
r
i
W
•
r
o
r
r
e
g
n
i
t
t
e
s
h
c
t
i
w
s
d
r
a
o
b
V
N
I
r
o
r
r
e
m
e
t
s
y
s
M
P
I
connectors on IPM-driven power supply
circuit
• INV board fault
Error
code *1
(PCB *2
RC
M-NET)
Error type
Cause
(Installation/Setting error)
Cause
(Parts problems)
Error reset *3
Unit
side
(PCB)
Remote
SWS1
Operation
SW
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Содержание QAHV-N560YA-HPB
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Страница 176: ......
