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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
(14) Disconnect battery plug, then perform inverter discharging work
(14) Disconnect battery plug, then perform inverter discharging work
(15) Remove DSP cover of all inverters and check DSP flat cable for looseness or wire breakage
(15) Remove DSP cover of all inverters and check DSP flat cable for looseness or wire breakage
(17) Install the line f
(17) Install the line f
(18) Measure voltage between P and N of
(18) Measure voltage between P and N of traction
(20) Check DC voltage of pump and traction inverters with monitor
(20) Check DC voltage of pump and traction inverters with monitor
These values should be same as battery voltage
These values should be same as battery voltage
Traction inverter value
Traction inverter value abnormal
(21) Disconnect battery plug, then perform inverter discharging work
(21) Disconnect battery plug, then perform inverter discharging work
(22) Replace DSP card of traction
(22) Replace DSP card of traction
inverter (RH)
inverter (RH)
Install all f
Install all f
power
power
(25) Disconnect battery plug, then perform inverter discharging work
(25) Disconnect battery plug, then perform inverter discharging work
(26) Replace the DSP card with the
(26) Replace the DSP card with the
original card again
original card again
Then replace the traction inverter
Then replace the traction inverter
(RH)
(RH)
Please keep the DSP card which
Please keep the DSP card which
is used for inspection
is used for inspection
Because the card is normal
Because the card is normal
Normal
Normal
use, con
use,
connect battery plug and tern on
nect battery plug and tern on
Traction i
Traction i
N
N
o
o
r
r
m
m
a
a
l
l
a
a
(19) Replace power cable
(19) Replace power cable
abnormal(RH)
(RH)
uses an
uses
and turning on
d turning on
If
If
fault (40) rem
fault (40)
remains
ains
(16) Secure DSP flat cable if loose
(16) Secure DSP flat cable if loose
Replace inverter if wire breaks
Replace inverter if wire breaks
traction(righ
(right
t
and
and
left
left
)
)
and pump inverters (1 minute max
and pump inverters (1 minute max
nverter
nverter
Traction
Traction
b
b
n
n
o
o
r
r
m
m
a
a
l
l
(
(
R
R
H
H
)
)
a
a
b
b
Traction
Traction
inverter
inverter
value
value
abnormal
abnormal(LH)
(23) Replace DSP card of traction
(23) Replace DSP card of traction
inverter (LH)
inverter (LH)
Install all f
Install all f
uses
uses an
and turning on
d turning on
power
power
If fault (40) remains
If fault (40) remains
(27) Replace the DSP card with the
(27) Replace the DSP card with the
original card again
original card again
Then replace the traction inverter
Then replace the traction inverter
(LH)
(LH)
Please keep the DSP card which
Please keep the DSP card which
is used for inspection
is used for inspection
Because the card is normal
Because the card is normal
Abnormal
Abnormal
)
)
inverter
inverter
Pump
Pump
n
n
o
o
r
r
m
m
a
a
l
l
(
(
L
L
H
H
)
)
a
a
b
b
n
n
(LH)
Pump
Pump
inverter
inverter
(24) Replace DSP card of pump
(24) Replace DSP card of pump
inverter
inverter
Install all fuses and turning on
Install all fuses and turning on
power
power
If
If
fault (40)
fault (40) rem
(28) Replace the DSP card with the
(28) Replace the DSP card with the
original card again
original card again
Then replace the pump inverter
Then replace the pump inverter
Please keep the DSP card which
Please keep the DSP card which
is used for inspection
is used for inspection
Because the card is normal
Because the card is normal
502827
502827
2-43
2-43
inverter
inverter
o
o
r
r
m
m
a
a
l
l
value
value
abnormal
abnormal
remains
ains
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