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Troubleshooting
4–8
153378
0034
Unused Matrix Over
Current
H
Fundamentally, an Unused Matrix
Over Current Fault should not occur,
however if it does, it is generally
indicative of a CCU2 malfunction.
• 0834 - Unused Matrix over
current in phase A
• 1034 - Unused Matrix over
current in phase B
• 2034 - Unused Matrix over
current in phase C
If more than one phase faults
simultaneously, the two first digits
are added in hexadecimal form to
indicate an over current condition in
more than one phase, thus the error
code will contain the summation of
the faulted phases.
• CCU2 malfunction
0040
Programming
Software
S
This code indicates that the GT100
has detected that the system is in
Programming mode. This fault does
not indicate any malfunction with the
GT100, but is merely an indication
that the system software is in the
process of being downloaded into the
EEPROMs of the CCU2.
0041
State Invalid
S
The state machine implemented
within the CCU2 system software
governs the operation of the GT100.
This fault indicates that the GT100
has detected an unknown system
variable and has encountered an
invalid state.
• Internal RAM error
• CPU error
0042
Serial EEPROM
Write Error
S
This fault indicates that the GT100
has detected a serial EEPROM write
error. The CCU2 controller board
performs a verification check of data
written to ROM compared to what is
read back.
• Internal ROM error
• CPU error
Table 4-1
Fault Codes
Error
Code Fault
Source(s)
Fault Type
H=Hardware
S=Software
Fault Description
Possible Causes
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