Honda GXE2.0H, Manual

Page: 40 / 71

4-14
dummyhead dummyhead
TROUBLESHOOTING
3A120 Lock error Overload operation 1. PDU (connected with Dr.
H)
Current value is 35 A or
more in motor running
status (abnormal)
Lock or overload by driven
system
2. Driven mechanism Mechanical lock or
excessive overload
Loosely connected
connector
3. PDU 3P (Gray) connector Loose or poor connection
Loosely connected
connector terminal
4. PDU 3P (Gray) connector
terminal
Loose or poor contact
Damaged stator coil 5. Stator coil Coil resistance value
measurement (page 7-8)
Damaged PDU 6. PDU Replace PDU
3A121 Motor
overspeed
Excessive overload driving
on downward slope
1. Driving situation of
completed machine
• Load weight
• Slope of working
condition
Traction driving by external
force
2. Driving situation of
completed machine
Traction operation
Damaged stator coil 3. Stator coil Coil resistance value
measurement (page 7-8)
3A122 Motor reverse
rotation
Excessive overload driving
on upward slope
1. PDU (connected with Dr.
H)
Rotating direction
2. Motor P.T.O. shaft Rotating direction
3-phase wire
misconnection
3. PDU 3P (Gray) connector Wire connection (poor
connection of terminal or
connector)
Rotor sensor wire
misconnection
4. Rotor sensor 8P (Black)
connector
Wire connection (poor
connection of terminal or
connector)
3A130 FET overcurrent
(OC2)
Overload operation 1. PDU (connected with Dr.
H)
Current value is 35 A or
more in motor running
status (abnormal)
High ambient temperature
around product
2. PDU mounting area Peripheral temperature
Lock or overload by driven
system
3. Driven mechanism Mechanical lock or
excessive overload
Improper installation of
PDU on frame
4. PDU PDU mounting condition
Damaged PDU 5. PDU Replace PDU
3A131 FET
excessively
overheating
(OT2)
Overload operation 1. PDU (connected with Dr.
H)
Current value is 35 A or
more in motor running
status (abnormal)
High ambient temperature
around product
2. PDU mounting area Peripheral temperature
Lock or overload by driven
system
3. Driven mechanism Mechanical lock or
excessive overload
Improper installation of
PDU on frame
4. PDU PDU mounting condition
Damaged PDU 5. PDU Replace PDU
3A132 Motor
excessively
overheating
(OT2)
Overload operation 1. PDU (connected with Dr.
H)
Current value is 35 A or
more in motor running
status (abnormal)
High ambient temperature
around product
2. Motor peripheral area Peripheral temperature
Lock or overload by driven
system
3. Driven mechanism Mechanical lock or
excessive overload
Improper installation of
PDU on frame
4. PDU PDU mounting condition
Damaged PDU 5. PDU Replace PDU
DTC Detecting Item
Failure Condition/
Possible Cause
Verification Item (Check in numerical order)
Applicable Part
Check for
(abnormal symptom)