Mitsubishi FB13PNT, Quick Start Manual

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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.15 15 Pu Pump M mp Mot otor O or Ove ver- r-cu curr rren ent (35 t (35))
Error code: 35 Error code: 35
Situation Situation
Display: "35". All Display: "35". All truck operations inhibited. Line contactor HOLD and ST contactor HOLD. truck operations inhibited. Line contactor HOLD and ST contactor HOLD.
Traction motor Traction motor and pump mot and pump motor operation or operation inhibited. If this fault inhibited. If this fault occurs before occurs before ST contactor CL ST contactor CLOSE, all OSE, all
operations inhibited except mast lowering operation. operations inhibited except mast lowering operation.
Possible Possible
cause
cause
Faulty pump motor. (Contain the bearing sensor) Faulty pump motor. (Contain the bearing sensor)
Faulty pump inverter. Faulty pump inverter.
Faulty contact or wire breakage of DSP flat
Faulty contact or wire breakage of DSP flat cable in pump inverter. cable in pump inverter.
Faulty DSP card of pump i Faulty DSP card of pump inverter. nverter.
Faulty main harness. Faulty main harness.
Trigger of Trigger of
the error the error
code
code
Motor current is more than 1105 A (Moment) or 893 A (1 mS) or 829 A (1.6 mS). Motor current is more than 1105 A (Moment) or 893 A (1 mS) or 829 A (1.6 mS).
Checks Checks
(4) Replace pump motor (4) Replace pump motor
(2) Check pump motor body and terminal for burning and small (2) Check pump motor body and terminal for burning and small
Normal Abnormal Normal Abnormal
(3) Check motor terminal (U V W phases) for shorting to (3) Check motor terminal (U V W phases) for shorting to
the motor body and truck frame the motor body and truck frame . .
N N o o t t s s h h o o r r t t i i n n g g s s h h o o r r t t i i n n g g
(6) Remove the all cables of motor and pump inverter (6) Remove the all cables of motor and pump inverter
terminals (P N U V W ) terminals (P N U V W )
Check motor terminals for shorting to the motor body Check motor terminals for shorting to the motor body
Check the cables for shorting to the frame Check the cables for shorting to the frame
N N o o t t s s h h o o r r t t i i n n g g s s h h o o r r t t i i n n g g
(8 (8 ) R ) R ep ep lac lac e pu e pu mp inv mp inv er er ter ter (9) (9) Re Re pla pla ce p ce p ump mo ump mo tor o tor o r r
cables cables
(1) Disconnect battery plug, then perform inverter discharging work (1) Disconnect battery plug, then perform inverter discharging work
(5) Confirm cable looseness and improper connections (5) Confirm cable looseness and improper connections
(U V W phases) for pump inverter and motor (U V W phases) for pump inverter and motor
N N o o r r m m a a l l A A b b n n o o r r m m a a l l
(7) Secure cable if loose or (7) Secure cable if loose or
connect cable correctly connect cable correctly
(12) Replace pump inverter (12) Replace pump inverter
(14) Secure DSP flat cable if loose (14) Secure DSP flat cable if loose
Replace pump inverter if wire breaks Replace pump inverter if wire breaks
(10) Follow the pump inverter testing procedure (10) Follow the pump inverter testing procedure
Normal Abnormal Normal Abnormal
(11) Remove DSP cover of pump inverter and check DSP (11) Remove DSP cover of pump inverter and check DSP
flat cable for looseness or wire breakage flat cable for looseness or wire breakage
Normal Abnormal Normal Abnormal
(13) Replace DSP card of pump inverter (13) Replace DSP card of pump inverter
All powe All powe r cables r cables conne conne ct and turning on pow ct and turning on pow er er
If fault (35) remains If fault (35) remains
(15) Perform inverter discharging work (15) Perform inverter discharging work
(16) Replace (16) Replace the DSP c the DSP c ard with the original card again ard with the original card again , ,
then replace the pump inverter then replace the pump inverter
Please keep the DSP card which is used for inspection Please keep the DSP card which is used for inspection
at step (13) because the card is normal at step (13) because the card is normal
If fault (35) remains If fault (35) remains