2-15
2-15
501135
501135
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.
3.5
5
Tr
Trac
acti
tion
on In
Inve
vert
rter
er L.
L.H.
H., O
, Ove
verh
rhea
eati
ting
ng (E
(E6)
6)
Error code: E6
Error code: E6
Situation
Situation
Controller/mo
Controller/motor overheat indicator ON.
tor overheat indicator ON. Poor pulling power and
Poor pulling power and acceleration. Normal pump motor and
acceleration. Normal pump motor and power
power
steering operations. Service tool "Alarm status" and "E6" displayed.
steering operations. Service tool "Alarm status" and "E6" displayed.
Possible
Possible
cause
cause
Overheating of left side traction inverter, faulty left side traction inverter thermal sensor, open harness wiring,
Overheating of left side traction inverter, faulty left side traction inverter thermal sensor, open harness wiring,
faulty left traction inverter PC board, abnormal power supply of
faulty left traction inverter PC board, abnormal power supply of logic unit, faulty radiation of left
logic unit, faulty radiation of left side traction
side traction
inverter, faulty display unit.
inverter, faulty display unit.
Trigger of
Trigger of
the error
the error
code
code
Controller temperat
Controller temperature is out of
ure is out of range of -25 °C
range of -25 °C to 100 °C
to 100 °C (-13 °F to 212
(-13 °F to 212 °F). Capacitor temperature is out of
°F). Capacitor temperature is out of
range of -25 °C to 110 °C (-13
range of -25 °C to 110 °C (-13 °F to 230 °F).
°F to 230 °F). Recovers when tempe
Recovers when temperature is in range of -20 to 70 °C (-4
rature is in range of -20 to 70 °C (-4 to 158 °F).
to 158 °F).
Checks
Checks
(1) Let truck cool for 15 minutes
(1) Let truck cool for 15 minutes
Overheat
Overheat
indi
indi
cator
cator
ON
ON
Overheat
Overheat
indi
indi
cator
cator
OFF
OFF
(2) Left traction inverter becomes normal
(2) Left traction inverter becomes normal
(3) Check if truck is operated on steep upgrade or to pull
(3) Check if truck is operated on steep upgrade or to pull
large cargo load
large cargo load
(7) Confirm temperature of controller and head
(7) Confirm temperature of controller and head
capa
capa
citor with input
citor with input
monitor
monitor
Less
Less
than
than
-20
-20
°C(-
°C(-
4
4
°F)
°F)
-20
-20
°C
°C
to
to
70
70
°C
°C
o
o
r m
r m
o
o
r
r
e t
e t
h
h
a
a
n
n
7
7
0
0
°
°
C
C
(
(
1
1
5
5
8
8
°
°
F
F
)
)
(
(
- 4
- 4
°
°
F t
F t
o
o
1
1
5
5
8 °
8 °
F
F
)
)
(5) Replace left traction
(5) Replace left traction
inverter
inverter
(6) Clean mounting
(6) Clean mounting
surfac
surfac
e,
e,
apply
apply
thermal
thermal
paste,
paste,
then
then
reins
reins
tall
tall
inverter
inverter
(10) Perform inverter discharging work
(10) Perform inverter discharging work
(8) Disconnect battery plug. Wait until inverter
(8) Disconnect battery plug. Wait until inverter
temperature becomes close to room temperature
temperature becomes close to room temperature
Without service tool
Without service tool
With service tool
With service tool
If problem reoccurs
If problem reoccurs
Normal
Normal
(4) Perform inverter discharging work
(4) Perform inverter discharging work
Check thermal paste applied on inverter mounting
Check thermal paste applied on inverter mounting
surface
surface
Thermal paste film should be thin and even
Thermal paste film should be thin and even
Normal
Abnormal
Normal
Abnormal
(9) Normal
(9) Normal
Содержание FB13PNT
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Страница 265: ...CHAPTER 5 CIRCUIT DIAGRAM CHAPTER 5 CIRCUIT DIAGRAM Ch Chap apte ter 5 r 5 C CIR IRCU CUI IT DI T DIA AGR GRAM AM...
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Страница 292: ...9 9 9 9 7 7 5 5 9 9 5 5 M M 3 3 0 0 0 0 P P N N F F o o r r k k l l i i f f t t T T r r u u c c k k s s...