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Troubleshooting
4–8
152607
0041
State Invalid
S
The state machine implemented
within the CCU2 system software
governs the operation of the PV225S.
This fault indicates that the PV225S
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 PV225S
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
0043
Serial EEPROM
Timeout
S
This fault indicates that the PV225S
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 PV225S
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 PV225S
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 PV225S
has detected that a software test fault
has occurred. This is a simulated fault
used for debugging purposes.
Table 4-1
Fault Codes
Error
Code Fault
Source(s)
Fault Type
H=Hardware
S=Software
Fault Description
Possible Causes
Summary of Contents for PV225S-480-P
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Page 79: ...Computer Communications with the PV225S 152607 2 39...
Page 80: ...Operation 2 40 152607...
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Page 115: ...Appendix A Schematics 152607 A 5 Figure A 1 Electrical Diagram sample...
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