JLG ERT2669, Руководство по обслуживанию и ремонту

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SECTION 5 - JLG CONTROL SYSTEM
31215923 5-53
7758 7 7 "Rear Right Motor Output - Out Of Range
High"
Drive, Lift Up and Leveling Jack Func-
tions are Prevented. • UGM is detecting that the Right Power Module is communi-
cating that the Right Drive Motor Phase Voltage value is out-
side of the expected range.
• Check the Drive Motor Phase Voltage cable connections W, U
and V are properly connected at the drive motor. Check the
cable connections at the module terminals. Check the cables
for continuity or damage. Check the drive motor for internal
damage. If no issues are found, then the module may need
replaced.
7761 7 7 "Rear Left Motor Output - Out Of Range
Low"
Drive, Lift Up and Leveling Jack Func-
tions are Prevented. • UGM is detecting that the Left Power Module is communi-
cating that the Left Drive Motor Phase Voltage value is read-
ing as an open circuit or STG.
• Check the Drive Motor Phase Voltage cable connections W, U
and V are properly connected at the drive motor. Check the
cable connections at the module terminals. Check the cables
for continuity or damage. Check the drive motor for internal
damage. If no issues are found, then the module may need
replaced.
7762 7 7 "Rear Right Motor Output - Out Of Range
Low"
Drive, Lift Up and Leveling Jack Func-
tions are Prevented. • UGM is detecting that the Right Power Module is communi-
cating that the Right Drive Motor Phase Voltage value is
reading as an open circuit or STG.
• Check the Drive Motor Phase Voltage cable connections W, U
and V are properly connected at the drive motor. Check the
cable connections at the module terminals. Check the cables
for continuity or damage. Check the drive motor for internal
damage. If no issues are found, then the module may need
replaced.
7765 7 7 "Rear Left Motor - Feedback Failure" Drive, Lift Up and Leveling Jack Func-
tions are Prevented. • UGM is detecting that the Left Power Module is communi-
cating that there is an internal error with the Module.
• The module will need replaced.
7766 7 7 "Rear Right Motor - Feedback Failure" Drive, Lift Up and Leveling Jack Func-
tions are Prevented. • UGM is detecting that the Right Power Module is communi-
cating that there is an internal error with the Module.
• The module will need replaced.
7769 7 7 "Rear Left Motor - Rotation Opposite Con-
trol"
Drive is Prevented. • UGM is detecting that the Left Power Module is communi-
cating that the Left drive motor is turning in the incorrect
direction. The commanded direction is opposite of the
motor's actual direction.
• Check that the Encoder wires A and B are installed correctly
between the module and motor; CO371-J1 pins 13 & 14 to
MS377-A pins 2 & 3. Check that the motor phase cables
between the module and left drive motor are all correct; ver-
ify each phase leg matches from module to motor.
7770 7 7 "Rear Right Motor - Rotation Opposite
Control"
Drive is Prevented. • UGM is detecting that the Right Power Module is communi-
cating that the Right drive motor is turning in the incorrect
direction. The commanded direction is opposite of the
motor's actual direction.
• Check that the Encoder wires A and B are installed correctly
between the module and motor; CO342-J1 pins 13 & 14 to
MS375-A pins 2 & 3. Check that the motor phase cables
between the module and left drive motor are all correct; ver-
ify each phase leg matches from module to motor.
DTC
Code
Flash
Code
Description Action Item Check List