Service Manual

TRIFLEX DIAGNOSTIC FAULT CODE QUICK REFERENCE TABLE – Revision B Page 14
Fault
Number
Fault Title
Controller
Affected
Fault Condition/Circuit
Description
Additional Notes
Service Actions
89
48V Bus Overvolt –
S/G
Starter/Generator
This fault is reported when the
48 Vdc Bus circuit exceeds 65
Vdc at the starter/generator.
This fault will cause the TEC to
disable the starter/generator.
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), 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.
94
48V Bus Undervolt
– CU1
Cutting unit
This fault is reported when the
48 Vdc Bus system voltage is
below 32 Vdc at cutting unit 1.
This fault only reports when the
S/G contactor is closed.
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 undervolt
fault (Fault 44).
The TEC will disable
the cutting units
(PTO).
1) Check the 48 Vdc bus fuse.
2) Check the 2-pin 48 Vdc cutting
unit bus connector.