Service Manual

TRIFLEX DIAGNOSTIC FAULT CODE QUICK REFERENCE TABLE – Revision A Page 13
Fault
Number
Fault Title
Controller
Affected
Fault Condition/Circuit
Description
Additional Notes
Service Actions
87
48V Bus Overvolt –
CU2
Cutting unit
This fault is reported when the
48 Vdc Bus circuit exceeds 67.5
Vdc at cutting unit 2. This fault
will cause the TEC to disable the
cutting unit motor. Note: This
fault can also occur if the
generator is faulting and not
generating.
All of the machine’s 48
Vdc devices connect
to the same 48 Vdc
bus. 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 45).
The TEC will disable
the cutting units
(PTO). 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.
88
48V Bus Overvolt –
CU3
Cutting unit
This fault is reported when the
48 Vdc Bus circuit exceeds 67.5
Vdc at cutting unit 3. This fault
will cause the TEC to disable the
cutting unit motor. Note: This
fault can also occur if the
generator is faulting and not
generating.
All of the machine’s 48
Vdc devices connect
to the same 48 Vdc
bus. 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 45).
The TEC will disable
the cutting units
(PTO). 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.