Mitsubishi FB13PNT, Quick Start Manual

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2-51 2-51
E-18 E-18 E-15 E-15
501136 501136
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.20 20 Pu Pump mp Mo Moto tor O r Ope pen ( n (47 47))
Error code: 47 Error code: 47
Sit Situat uation ion Dis Displa play: "4 y: "47". 7". All All tru truck o ck oper perati ations ons inh inhibi ibited ted. . Lin Line co e conta ntacto ctor OP r OPEN a EN and p nd pump ump con contac tactor tor OPE OPEN. N.
Possible Possible
cause cause
Faulty contact or wire breakage of pump motor cable, faulty Faulty contact or wire breakage of pump motor cable, faulty pump motor, faulty contact or wire breakage of pump motor, faulty contact or wire breakage of
pump inverter connector, faulty contact of DSP flat cable pump inverter connector, faulty contact of DSP flat cable in pump inverter, wire breakage of main harness, in pump inverter, wire breakage of main harness,
faulty power supply card of faulty power supply card of logic unit, faulty DSP card of logic unit, faulty DSP card of pump inverter, faulty pump inverter, when restarting pump inverter, faulty pump inverter, when restarting
after motor shorted. after 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 rotational speed instruction flow when rotational speed instruction
is requested. is requested.
Checks Checks
(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 Less than than 1 1 Ω Ω 1 1 Ω Ω or or more more
(12) Secure DSP flat cable if loose (12) Secure DSP flat cable if loose
Replace inverter if wire breaks Replace inverter if wire breaks
(15) Repair or replace harness (15) Repair or replace harness
(10) Replace motor cables (10) Replace motor cables (9) Replace pump motor (9) Replace pump motor
(8) Replace motor cables (8) Replace motor cables
(1) Disconnect battery plug, then perform inverter discharging work (1) Disconnect battery plug, then perform inverter discharging work
(3) Disconnect pump motor cables from inverter (3) Disconnect pump motor cables from inverter
Measure resistance of motor cables Measure resistance of motor cables
(U, V and W phases) (U, V and W phases)
Less Less than than 1 1 Ω Ω 1 1 Ω Ω or or more more
(5) Che (5) Che ck conn ck conn ector E-05 ector E-05 of pump of pump inver inver ter for ter for loosen loosen ess ess
Normal Abnormal Normal Abnormal
(7) Dis (7) Dis conne conne ct connec ct connec tor E-05 tor E-05 of of
Pump Pump inver inver ter and remove DSP ter and remove DSP
Cover Cover
Chec Chec k DSP flat cable for k DSP flat cable for Loose Loose ness ness
or wire breakage or wire breakage
Normal Abnormal Normal Abnormal
(11) D (11) D isconnect connec isconnect connec tor E-01 tor E-01 of logic unit of logic unit
Check continuity between E-01-5 and E-05-16(9) Check continuity between E-01-5 and E-05-16(9)
Check continuity between E-01-6 and E-05-20(12) Check continuity between E-01-6 and E-05-20(12)
(13) Dis (13) Dis conne conne ct connec ct connec tor E-02 tor E-02 of logic unit of logic unit
Check continuity between E-02-5 and E-05-3(3) Check continuity between E-02-5 and E-05-3(3)
Check continuity between E-02-6 and E-05-4(4) Check continuity between E-02-6 and E-05-4(4)
Check continuity between E-05-14 and E-05-15 Check continuity between E-05-14 and E-05-15
Continuity Continuity No No continuity continuity
(14) Connec (14) Connec t connector E-01 t connector E-01 to logic unit, to logic unit, then turn on then turn on
power again power again
(2) Check pump inverter and motor for cable looseness (2) Check pump inverter and motor for cable looseness
and improper contact and improper contact
Normal Abnormal Normal Abnormal
CA CA N N
Gate power supply Gate power supply
(16) Measure (16) Measure voltage between voltage between E-05-16(9) and E-05-16(9) and E-05-20(12) E-05-20(12)
Con Con firm valu firm valu e is e is 12 ± 12 ± 1 V 1 V
Normal Abnormal Normal Abnormal
Continuity Continuity No No continuity continuity