Mitsubishi FB13PNT, Quick Start Manual

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2-24 2-24
501138 501138
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.8 8 Tr Trac acti tion M on Mot otor C or Cur urre rent S nt Sen enso sor R. r R.H. H., Fa , Faul ult (1 t (14) 4)
Error code: 14 Error code: 14
Situation Situation
Display: "14". All Display: "14". 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 traction inverter. (U, V current sensor in traction inverter) Faulty traction inverter. (U, V current sensor in traction inverter)
Faulty DSP card of traction inverter.
Faulty DSP card of traction inverter.
Faulty contact or wire breakage of DSP flat cable
Faulty contact or wire breakage of DSP flat cable in traction inverter. in traction inverter.
Trigger of Trigger of
the error the error
code
code
When turning on power, current sensor value is out of -120 A to 120 A . When turning on power, current sensor value is out of -120 A to 120 A .
Checks Checks
(2) Follow the inverter testing procedure (2) Follow the inverter testing procedure
Normal Abnormal Normal Abnormal
(4) Replace traction inverter (4) Replace traction inverter
(6) Secure DSP flat cable if loose (6) Secure DSP flat cable if loose
Replace traction inverter if wire breaks Replace traction inverter if wire breaks
(3) Remove DSP cover of traction inverter (3) Remove DSP cover of traction inverter
Check DSP Flat cable for looseness or wire breakage Check DSP Flat cable for looseness or wire breakage
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
(5) (5) Replace DS Replace DS P car P car d of traction i d of traction i nverter nverter
All powe All powe r cables r cables conne conne ct and turning on powe ct and turning on powe r r
If fault (14) remains If fault (14) remains
(7) Perform inverter discharging work (7) Perform inverter discharging work
(1) Disconnect battery plug, then perform inverter discharging work (1) Disconnect battery plug, then perform inverter discharging work
(8) Replace the DSP card with the original card again, then (8) Replace the DSP card with the original card again, then
replace the traction inverter replace the traction inverter
Please keep the DSP card which is used for inspection Please keep the DSP card which is used for inspection
at step (5) because the card is normal at step (5) because the card is normal