Mitsubishi FB13PNT, Quick Start Manual

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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.1 3.10 0 Tra Tracti ction M on Moto otor R. r R.H., H., Sta Stall T ll Time imer (1 r (16) 6)
Error code: 16 Error code: 16
Situation Situation
Display: “16”. Display: “16”. Traction motor and pump motor oper Traction motor and pump motor operation inhibited. LINE contactor HOLD and ST contactor ation inhibited. LINE contactor HOLD and ST contactor
HOLD HOLD
Possible Possible
cause cause
Stall current flowed more than 7s right traction motor, faulty right Stall current flowed more than 7s right traction motor, faulty right traction inverter current sensor, shorted traction inverter current sensor, shorted
harness wiring, faulty right traction inverter DSP card, faulty logic harness wiring, faulty right traction inverter DSP card, faulty logic unit. unit.
Trigger of Trigger of
the error the error
code
code
7s is measured while stalling. 7s is measured while stalling.
Checks Checks
(1) Turn off power, then turn on power again (1) Turn off power, then turn on power again
Confirm error code display Confirm error code display
No error, problem reoccurs No error, problem reoccurs Error code “14” Error code “14”
(13) Disconnect battery plug, then perform inverter discharging work (13) Disconnect battery plug, then perform inverter discharging work
(3) See troubleshooting for code "14" (3) See troubleshooting for code "14" (2) (2) Check to see Check to see if t if t ruck ruck is operated with heavy cargo is operated with heavy cargo
load or on steps when motor stalls load or on steps when motor stalls
Normal Normal steeps steeps Heavy Heavy load load
(9) Dis (9) Dis conne conne ct connec ct connec tor tor E- E- 02 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)
Continuity Continuity Abnorm Abnorm al al and and no no continuity continuity
(4) Disconnect battery plug, then perform inverter (4) Disconnect battery plug, then perform inverter
discharging work discharging work
(8) Secure harness if loose. Replace right traction (8) Secure harness if loose. Replace right traction
inverter if wire breaks inverter if wire breaks
(5) Operate under normal condition (5) Operate under normal condition
(6) D (6) D isconnect connec isconnect connec tor E-07 tor E-07 of right traction inverter of right traction inverter
and remove DSP cover, then check DSP flat cable for and remove DSP cover, then check DSP flat cable for
looseness or wire breakage looseness or wire breakage
Normal Abnormal Normal Abnormal
Continuity Continuity No No continuity continuity
(10) Connect connec (10) Connect connec tor E-01 tor E-01 to logic unit, to logic unit, then turn on then turn on
power again power again
(11) Repair or replace harness (11) Repair or replace harness
(12) Measure voltage between E-07-16(9) and (12) Measure voltage between E-07-16(9) and
E-07-2 E-07-2 0(12) C 0(12) C onfirm value is 12 ± onfirm value is 12 ± 1 V 1 V
Normal Abnormal Normal Abnormal
( 1 ( 1 4 4 ) ) R R e e p p l l a a c c e D e D S S P P c c a a r r d o d o f r f r i i g g h h t t t t r r a a c c t i t i o o n i n i n n v v e e r r t e t e r r ( ( 1 1 5 5 ) ) R R e e p p l l a a c c e p e p o o w w e e r r s s u u p p p p l l y y c c a a r r d o d o f l f l o o g g i i c c u u n n i i t t
CA CA N N
(7) Dis (7) Dis conne conne ct connec ct connec tor tor E- E- 01 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)
Power supply Power supply