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Fault Code Descriptions
153378
4–9
0043
Serial EEPROM
Timeout
S
This fault indicates that the GT100
has detected that when writing data
to the serial EEPROM, a
confirmation timer of 300mS has
expired.
• Internal ROM error
• CPU error
0044
Bad NOVRAM
Memory
S
This fault indicates that the GT100
has detected that one of the two non-
volatile memory banks on the CCU2
controller board has failed. The
CCU2 performs a series of tests to
confirm the validity of the
NOVRAM, and one of the two banks
has produced errors.
• Internal NOVRAM
error
• CPU error
0045
Interrupt 2 Timeout
S
This fault indicates that the GT100
has detected that an interrupt 2
timeout has occurred. The CCU2
controller board performs a
conversion validation of analog-to-
digital data within the A to D
converters. If validation of the
conversion is not performed within
500mS, an interrupt 2 timeout fault
will occur.
• Internal A to D
converter error
• CPU error
0047
Software Test
S
This fault indicates that the GT100
has detected that a software test fault
has occurred. This is a simulated
fault used for debugging purposes.
0048
Bad Memory
S
This fault indicates that the GT100
has detected that the SRAM DIMM
on the CCU2 controller board has
failed. The CCU2 performs a series
of tests to confirm the validity of the
SRAM, and the memory module has
produced errors.
• Internal SRAM 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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