JLG E450A, Руководство по обслуживанию и ремонту

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SECTION 6 - JLG CONTROL SYSTEM
6-80 3121714
77 30 PUMP MOTOR OUTPUT - OUT OF RANGE HIGH Master Traction Module detects that the pump
motor voltage output is higher than expected
(Pump Vmn High; 29/MC Drive Open). Too high
with respect to PWM applied. Power cycle
77 31 PUMP MOTOR OUTPUT - OUT OF RANGE LOW Master Traction Module detects that the pump
motor voltage output lower than expected. Too low
with respect to PWM applied. Power cycle
77 37 PUMP MOTOR OVERLOADED UGM detects that Pump Current reported by MTM
> 210A for 3000ms (both Constant Data Values);
MTM detects pump current > 220A Currents return to levels below trigger level for
same time period as trigger and controls initial-
ized.UGM shall remove Drive Creep speed restric-
tion after controls initialized
77 53 REAR LEFT MOTOR STALLED The UGM or Power Module(s) detects that the
motor is stalled during active traction.
For the UGM commanded speed ≥ Creep AND
(RIGHT) +30 > Steer Angle < -45 (LEFT), the
reported avg motor encoder feedback < 70 counts/
s for 5 seconds (1.685 Hz). Avg motor encoder feed-
back evaluate on a 1s running average.
For MTM, the encoder-measured motor speed <
0.6Hz for 5 seconds, when applied frequency > 1.5
Hz and Command > 10 Hz UGM and Left Power Module shall clear the fault
after drive joystick returns to neutral (and com-
mand returns to zero).
77 54 REAR RIGHT MOTOR STALLED The UGM or Power Module(s) detects that the
motor is stalled during active traction.
For the UGM commanded speed ≥ Creep AND
(RIGHT) +30 > Steer Angle < -45 (LEFT), the
reported avg motor encoder feedback < 70 counts/
s for 5 seconds (1.685 Hz). Avg motor encoder feed-
back evaluate on a 1s running average.
For MTM, the encoder-measured motor speed <
0.6Hz for 5 seconds, when applied frequency > 1.5
Hz and Command > 10 Hz UGM and Right Power Module shall clear the fault
after drive joystick returns to neutral (and com-
mand returns to zero)
77 57 REAR LEFT MOTOR OUTPUT - OUT OF RANGE
HIGH Associated Power Module detects at Startup or dur-
ing active traction that the motor voltage output is
higher than expected Power cycle
77 58 REAR RIGHT MOTOR OUTPUT - OUT OF RANGE
HIGH Associated Power Module detects at Startup or dur-
ing active traction that the motor voltage output is
higher than expected Power cycle
77 61 REAR LEFT MOTOR OUTPUT - OUT OF RANGE
LOW Associated Power Module detects at Startup or dur-
ing active traction that the motor voltage output is
lower than expected Power cycle
77 62 REAR RIGHT MOTOR OUTPUT - OUT OF RANGE
LOW Associated Power Module detects at Startup or dur-
ing active traction that the motor voltage output is
lower than expected Power cycle
77 65 REAR LEFT MOTOR - FEEDBACK FAILURE After main contactor is closed, Power Module
detects that the motor voltage feedback circuits are
damaged Power cycle
77 66 REAR RIGHT MOTOR - FEEDBACK FAILURE After main contactor is closed, Power Module
detects that the motor voltage feedback circuits are
damaged Power cycle
Table 6-17. Diagnostic Trouble Codes
DTC Cat DTC Num DTC Text Fault Description Solution