mitsubishi FB18N

[max74]

Buongiorno a tutti ho un carrello Mitsubishi FB18N EFB15
che all'accensione da un codice guasto 47 qualcuno può darmi qualche indicazione, credo sia un problema sul sollevamento.

Grazie in anticipo

[Mirko75]

Problem: Pump Motor Open (Transistor Control Type Only) (47)
(1) Situation
Display: "47". All truck operations inhibited. Line contactor OPEN and steering contactor HOLD.
(2) Possible cause
Faulty contact or wire breakage of pump motor cable, faulty pump motor, faulty contact or wire breakage of pump
inverter connector, faulty contact of DSP flat cable in pump inverter, wire breakage of main harness, faulty power
supply card of logic unit, faulty DSP card of pump inverter, faulty pump inverter, when restarting after motor shorted.
(3) How the error code is triggered
Motor voltage is abnormal when power is turned on.
Current does not flow when rotational speed instruction is requested.
(4) Checks
Disconnect battery plug, then perform inverter discharging work. See page 1-45.
(5) Check pump inverter and motor for cable looseness and
improper contact.
Abnormal
Normal
(6) Disconnect pump motor cables from inverter.
Measure resistance of motor cables (U, V and W phases).
Less than 1
1 or more (7) Secure cable if loose.
(8) Check connector P2 of pump inverter for looseness.
Normal
Abnormal (9) Measure resistance between terminals of both cable
ends (between U and U, V and V, and W and W).
Less than 1
1 or more
(10) Disconnect connector P2 of pump
inverter and remove DSP cover.
Check DSP flat cable for looseness
or wire breakage.
Normal
Abnormal
(11) Connect connector securely.
(12) Replace pump motor.
(13) Replace motor cables.
Gate power
supply
(15) Secure DSP flat cable if loose.
Replace inverter if wire breaks. See page 1-46.
(14) Check continuity between P8-5(45) and P2-16(45A).
Check continuity between P8-6(44) and P2-20(44B).
Continuity
No continuity
CAN
(16) Disconnect connector P3 of logic unit.
Check continuity between P3-5(92A) and P2-3(92).
Check continuity between P3-6(93A) and P2-4(93).
Check continuity between P2-14 and P2-15(73).
No continuity
Continuity
(17) Connect connector P8 to logic unit, then turn on
power again.
(18) Repair or replace harness.
(19) Measure voltage between P2-16(45A) and P2-20(44B).
Confirm value is 12V 1V.
Normal
Abnormal
(20) Disconnect battery plug, then perform inverter discharging work. See page 1-45.
(21) Replace DSP card of pump inverter. See page 1-48.
(22) Replace power supply card of logic unit.
See page 1-52.
If fault remains
(23) Perform inverter discharging work, then replace
pump inverter. (DSP card is normal.) See page 1-46.