Yamaha X94 Series, Руководство по обслуживанию

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2-42
ELEC
– +
Diagnosis function (LCD type display unit)
Motor or Co
ntrolle
r
50
Abno
rma
l vo
ltage
of th
e sen-
sor for
U phase current
while
the motor
is
no
t op
erating
.
Powe
r assi
st
will
i
m
med
iately
sto
p
after
determine the error.
Error c
o
de will
record.
1
R
epl
ace th
e controlle
r
a
s
se
mb
ly.
51
Abno
rma
l vo
ltage
of th
e sen-
sor fo
r V pha
se
cu
rre
n
t
wh
ile
the motor
is
no
t op
erating
.
52
Abno
rma
l vo
ltage
of th
e sen-
sor fo
r W
ph
ase current whil
e
the motor
is
no
t op
erating
.
53
Ov
er
current
is applied
to the
U pha
se
o
f the motor.
Powe
r
assist will stop
afte
r determine
the error. Error c
o
de will
record.
2
1.
Rep
lace the controll
er assem-
bl
y.
2.
Rep
lace the motor
a
ssemb
ly
.
54
Ov
er
current
is applied
to the
V phase
of th
e mo
to
r.
55
Ov
er
current
is applied
to the
W ph
ase of
the motor.
56
Abnorm
al DC c
u
rr
ent
Powe
r assi
st
will
i
m
med
iately
sto
p
after
determine the error.
Error c
o
de will
record.
1
60
Not within
the 12
V
ou
tp
ut
rang
e
Powe
r assi
st
will
i
m
med
iately
sto
p
after
determine the error.
Error c
o
de will
record.
1
R
epl
ace th
e controlle
r
a
s
se
mb
ly.
70
External memory data error
Powe
r assi
st
will
i
m
med
iately
sto
p
after
determine the error.
Error c
o
de will
record.
1
R
epl
ace th
e controlle
r
a
s
se
mb
ly.
71
Fa
ilu
re
i
n
data readi
ng
D
isplay pa
tte
rn
Fa
ul
t
d
e
vi
ce
Er
ro
r
cod
e
s
Fa
ul
t d
e
tai
ls
Power
ass
is
t behavior
a
n
d e
rror
code rec
o
rd
*R
estoration
Ma
x Lev
e
l
Action
or
Alternately flashes Alternately flashes