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2-34
2-34
(13)
(13) C
Connec
onnect
power
power
Raise wheels off floor
Raise wheels off floor
(15) Driving and check the jerky and change directions at
(15) Driving and check the jerky and change directions at
very low speed
very low speed
Normal
Normal
(16) Driving and reading
(16) Driving and reading
output monitor
output monitor
Check the value of speed is smooth and not erratic
Check the value of speed is smooth and not erratic
feedback
feedback
Smooth
Smooth
(17) Follow the traction inverter testing procedure
(17) Follow the traction inverter testing procedure
Normal
Normal
(19) Remove DSP cover of traction inverter and check DSP
(19) Remove DSP cover of traction inverter and check DSP
flat cable for looseness or wire breakage
flat cable for looseness or wire breakage
Normal
Normal
(21) Replace DSP card of traction inverter
(21) Replace DSP card of traction inverter
All powe
All
power cables
(23) Perform inverter discharging work
(23) Perform inverter discharging work
(24) Replace the DSP card with t
(24) Replace the DSP card with t
then replace the traction inverter
then replace the traction inverter
Please keep the DSP card which is used for inspection
Please keep the DSP card which is used for inspection
at step (21) because the card is normal
at step (21) because the card is normal
(25) Perform inverter discharging work
(25) Perform inverter discharging work
(26) Replace the traction inverter ASSY with the original
(26) Replace the traction inverter ASSY with the original
inverter ASSY again, then replace the traction motor
inverter ASSY again, then replace the traction motor
Please keep the inverter ASSY which is used for
Please keep the inverter ASSY which is used for
inspection at step (24) because the ASSY is normal
inspection at step (24) because the ASSY is normal
t
all
all conne
connectors
ctors,
,
battery plug a
battery plug
and turning on
nd turning on
Abnormal
Abnormal
Without service tool
Without service tool
Motor speed feedback
Motor speed feedback
Rough
Rough
or
or
Abnormal
Abnormal
Abnormal
Abnormal
r cables
conne
connect and turning on powe
ct and turning on
If fault (25) remains
If fault (25) remains
he original
he original
If fault (25) remains
If fault (25) remains
(14) Repair or replace harness
(14) Repair or replace harness
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
With service tool
With service tool
of
of
erratic
erratic
(18) Replace traction motor
(18) Replace traction motor
(20) Replace traction inverter
(20) Replace traction inverter
(22) Secure DSP flat cable if loose
(22) Secure DSP flat cable if loose
power
r
Replace traction inverter if wire breaks
Replace traction inverter if wire breaks
card again
card again
,
,
502822
502822
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