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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.20
20 Pu
Pump
Error code: 47
Error code: 47
Situat
Sit
uation
ion
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1) Disconnect battery plug, then perform inverter discharging work
(1) Disconnect battery plug, then perform inverter discharging work
(2) Check pump inverter and motor for cable looseness
(2) Check pump inverter and motor for cable looseness
and improper contact
and improper contact
(3) Disconnect pump motor cables from inverter
(3) Disconnect pump motor cables from inverter
Measure resistance of motor cables
Measure resistance of motor cables
(U, V and W phases)
(U, V and W phases)
(5)
(5) Che
Check conn
(7)
(7) Dis
Disconne
connect connec
Pump
Pump
Cover
Cover
Check DSP flat cable for
Chec
or wire breakage
or wire breakage
Gate power supply
Gate power supply
(11)
(11) D
Disconnect connec
isconnect
Check continuity between E-01-5 and E-05-16(9)
Check continuity between E-01-5 and E-05-16(9)
Check continuity between E-01-6 and E-05-20(12)
Check continuity between E-01-6 and E-05-20(12)
(13)
(13) Dis
Disconne
Check continuity between E-02-5 and E-05-3(3)
Check continuity between E-02-5 and E-05-3(3)
Check continuity between E-02-6 and E-05-4(4)
Check continuity between E-02-6 and E-05-4(4)
Check continuity between E-05-14 and E-05-15
Check continuity between E-05-14 and E-05-15
(14) Connec
(14)
Connect connector E-01
power again
power again
(16) Measure
(16) Measure
Con
Confirm valu
mp Mo
Moto tor O
r Ope
pen (
n (47
47) )
Dis
Displa
play: "4
y: "47".
7". All
All tru
truck o
ck oper
perati
Faulty contact or wire breakage of pump motor cable, faulty pump motor, faulty contact or wire breakage of
Faulty contact or wire breakage of pump motor cable, faulty
pump inverter connector, faulty contact of DSP flat cable in pump inverter, wire breakage of main harness,
pump inverter connector, faulty contact of DSP flat cable
faulty power supply card of
faulty power supply card of logic unit, faulty DSP card of
after motor shorted.
after motor shorted.
Motor voltage is abnormal when power is turned on. Current does not flow when rotational speed instruction
Motor voltage is abnormal when power is turned on. Current does not
is requested.
is requested.
Normal
Normal
Abnormal
Abnormal
Less
Less
than
than
1
1
Ω
Ω
1
1
Ω
Ω
ck
connector E-05
ector E-05
of pump
of pump
inverter for
inver
Normal
Normal
Abnormal
Abnormal
ct
connector E-05
tor E-05
of
of
inver
inverter and remove DSP
ter and remove DSP
k DSP flat cable for
Loose
Looseness
ness
Normal
Normal
Abnormal
Abnormal
connector E-01
tor E-01
of logic unit
of logic unit
Continuity
Continuity
No
No
CAN
CA
N
connect connec
ct
connector E-02
tor E-02
of logic unit
of logic unit
Continuity
Continuity
No
No
t connector E-01
to logic unit,
to logic unit,
voltage between
voltage between
E-05-16(9) and
E-05-16(9) and
firm
value is
e is
12 ±
12 ±
1 V
1 V
Normal
Normal
Abnormal
Abnormal
E-18
E-18
E-15
E-15
ations
ons inh
inhibi
ibited
ted. . Lin
Line co
e conta
ntacto
ctor OP
logic unit, faulty DSP card of pump inverter, faulty pump inverter, when restarting
pump inverter, faulty pump inverter, when restarting
(4) Secure cable if loose
(4) Secure cable if loose
or
or
more
more
ter for
loosen
looseness
ess
(6) Measure resistance between terminals of both cable
(6) Measure resistance between terminals of both cable
ends (between U and U, V and V, and W and W)
ends (between U and U, V and V, and W and W)
(8) Replace motor cables
(8) Replace motor cables
(9) Replace pump motor
(9) Replace pump motor
(12) Secure DSP flat cable if loose
(12) Secure DSP flat cable if loose
Replace inverter if wire breaks
Replace inverter if wire breaks
continuity
continuity
continuity
continuity
(15) Repair or replace harness
(15) Repair or replace harness
then turn on
then turn on
E-05-20(12)
E-05-20(12)
r OPEN a
EN and p
nd pump
ump con
contac
tactor
tor OPE
OPEN. N.
pump motor, faulty contact or wire breakage of
in pump inverter, wire breakage of main harness,
flow when rotational speed instruction
Less
Less
than
than
1
1
Ω
Ω
1
1
Ω
Ω
(10) Replace motor cables
(10) Replace motor cables
501136
501136
2-51
2-51
or
or
more
more
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