Mitsubishi FB13PNT, Quick Start Manual, Page: 134 / 292

2-47 2-47
501143 501143
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.1 3.18 8 Tra Tracti ction on Mot Motor or R.H R.H., ., Op Open en (45 (45))
Error code: 45 Error code: 45
Situation Situation
Display: "45". Traction motor operation inhibited. Pump motor and power steering operations inhibited if this Display: "45". Traction motor operation inhibited. Pump motor and power steering operations inhibited if this
fault occurs before pump contactor CLOSE, and both operable if it
fault occurs before pump contactor CLOSE, and both operable if it occurs after pump contactor CLOSE. Line occurs after pump contactor CLOSE. Line
contactor OPEN and pump contactor OPEN and pump contactor CLOSE or OPEN. contactor CLOSE or OPEN.
Possible Possible
cause
cause
Faulty contact or wire breakage of right side traction motor cable, faulty Faulty contact or wire breakage of right side traction motor cable, faulty right side traction motor, faulty right side traction motor, faulty
contact or wire breakage of right side traction inverter connector, faulty contact of DSP flat contact or wire breakage of right side traction inverter connector, faulty contact of DSP flat cable in right side cable in right side
traction inverter, wire breakage of main harness, faulty power supply traction inverter, wire breakage of main harness, faulty power supply card of logic unit, card of logic unit, faulty DSP card of faulty DSP card of right right
side traction inverter, faulty side traction inverter, faulty right side traction inverter, when restarting after right side traction inverter, when restarting after motor shorted. motor shorted.
Trigger of Trigger of
the error the error
code
code
Motor voltage is abnormal when power is turned on. Current does not Motor voltage is abnormal when power is turned on. Current does not flow when torque instruction is flow when torque instruction is
requested. requested.
Checks Checks
(1) Disconnect battery plug, then perform inverter discharging work (1) Disconnect battery plug, then perform inverter discharging work
(4) Secure cable if loose (4) Secure cable if loose
(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)
Less than Less than
1 1 Ω Ω 1 1 Ω Ω or or mo mo re re
(15) Repair or replace harness (15) Repair or replace harness
( ( 9 9 ) ) R R e e p p l l a a c c e e r r i i g g h h t t t t r r a a c c t t i i o o n n m m o o t t o o r r ( ( 1 1 0 0 ) ) R R e e p p l l a a c c e e m m o o t t o o r r c c a a b b l l e e s s
(8) Connec (8) Connec t t conne conne ctor ctor sec sec urely urely
(2) Check right traction inverter and motor for cable (2) Check right traction inverter and motor for cable
looseness and improper contact looseness and improper contact
Normal Abnormal Normal Abnormal
(14) C (14) C onnec onnec t connector E t connector E -01 -01 to logic unit to logic unit , then turn on , then turn on
power again power again
(3) Disconnect right traction motor cables from inverter (3) Disconnect right traction motor cables from inverter
Measure resistance of mot Measure resistance of mot or cables or cables (U, V (U, V and W and W
phases) phases)
Less Less than than 1 1 Ω Ω 1 1 Ω Ω or or more more
(5) (5) Check Check connector E-07 connector E-07 of right traction inverter for of right traction inverter for
looseness looseness
Normal Abnormal Normal Abnormal
(7) (7) Disconnect c Disconnect c onnector E-07 onnector E-07 of right of right
traction inverter and remove DSP traction inverter and remove DSP
cover. Check DSP flat cable for cover. Check DSP flat cable for
looseness or wire breakage looseness or wire breakage
Normal Abnormal Normal Abnormal
(11) (11) Disconnect c Disconnect c onnector E-01 onnector E-01 of logic unit of logic unit
Check continuity between E-01-5 and E-07-16(9) Check continuity between E-01-5 and E-07-16(9)
Check continuity between E-01-6 and E-07-20(12) Check continuity between E-01-6 and E-07-20(12)
Continuity Continuity No No continuity continuity
Continuity Continuity No No continuity continuity
(12) Secure DSP flat cable if loose (12) Secure DSP flat cable if loose
Replace inverter if wire breaks Replace inverter if wire breaks
(13) Dis (13) Dis conn conn ect connec ect connec tor E-02 tor E-02 of logic unit of logic unit
Check continuity between E-02-5 and E-07-3(3) Check continuity between E-02-5 and E-07-3(3)
Check continuity between E-02-6 and E-07-4(4) Check continuity between E-02-6 and E-07-4(4)
CAN CAN
Gate power Gate power
supply supply
(16) Measure (16) Measure voltage between voltage between E-07-16(9) and E-07-16(9) and E-07-20(12) E-07-20(12)
Con Con firm valu firm valu e is e is 12 ± 12 ± 1 V 1 V