Service Manual

TRIFLEX DIAGNOSTIC FAULT CODE QUICK REFERENCE TABLE – Revision B Page 18
Fault
Number
Fault Title
Controller
Affected
Fault Condition/Circuit
Description
Additional Notes
Service Actions
102
48V Keyswitch
Overvolt – S/G
Starter/Generator
This fault is reported when the
48 Vdc low current logic circuit
exceeds 65 Vdc at the S/G. This
fault will cause the TEC to
disable the S/G.
If this is a system
issue, the TEC master
controller will combine
all 4 component 48
Vdc Bus Overvolt
faults into a single 48
Vdc Bus overvolt fault
(Fault 46).
The TEC will disable
the cutting units
(PTO), and the
generator will not
provide voltage. If the
lightning bolt in the
S/G icon is black, the
S/G is generating.
1) If the other 48 Vdc devices are
reporting this fault, check the
batteries. If the batteries are ok
with the engine off, the
generator is not generating
correctly.
2) Test the generator to see if it is
generating correctly.
3) Ensure all S/G motor-to-
controller connections are
correct and secure.
103
Temperature
Sensor Fault
Master
This fault is reported when the
FET temperature sensor and the
Motor temperature sensor in the
S/G controller have both failed.
The TEC will disable
the cutting units
(PTO), and the
generator will not
provide voltage.
Replace the S/G controller if the
fault continuously repeats.
104
Over Current
Disable – CU1
Cutting unit
This fault is reported when the
hardware in CU1 detects an
overcurrent condition and
disables the PWM to stop the
motor. This happens when the
FET current is measured in
excess of a design limit set
point.
This can be reported
as hardware
overcurrent or
overvoltage. This fault
exists to protect this
system in case the SW
does not limit the
current and voltage
correctly.
The TEC will disable
the cutting units
(PTO).
Replace the cutting unit motor.