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Siemens Building Technologies
Basic Documentation LMV5...
CC1P7550en
HVAC Products
16 Addendum 1: List of fault status messages of LMV5... system
13.08.2004
16 Addendum 1: List of fault status messages of LMV5... system
Error
code
Diagnostic
code
Device
Display
Meaning for the LMV5x system
Troubleshooting
01
01
BU
Internal Fault Basic Unit
ROM error
*1)
02
#
BU
Internal Fault Basic Unit
RAM error
*1)
02
01
BU
Internal Fault Basic Unit
RAM error in register bank 0 (LMV51...)
02
02 BU
Internal Fault Basic Unit
RAM error in IDATA area (LMV51...)
02
03 BU
Internal Fault Basic Unit
RAM error in XDATA area (LMV51...)
02
04 BU
Internal Fault Basic Unit
RAM error of variables used
02
05 BU
Internal Fault Basic Unit
RAM error variable consistency
02
06 BU
Internal Fault Basic Unit
RAM error reading back test pattern
02
07 BU
Internal Fault Basic Unit
Error RAM test code run
03
#
BU
Internal Fault Basic Unit
Error in connection with data comparison
(internal communication) between µC1
and µC2
*1)
03
01 BU
Internal Fault Basic Unit
TimeOut during program run synchroni-
zation prior to data transmission
03
02 BU
Internal Fault Basic Unit
TimeOut during data transmission
03
03 BU
Internal Fault Basic Unit
CRC error during data transmission
03
05 BU
Internal Fault Basic Unit
TimeOut during program run synchroni-
zation with initialization
03
10 BU
Internal Fault Basic Unit
Error counter "Flame intensity outside
tolerance" has elapsed
03
11 BU
Internal Fault Basic Unit
Error counter "Target phase unequal"
has elapsed
03
12 BU
Internal Fault Basic Unit
Error counter "Reset-lockout input un-
equal" has elapsed
03
40 BU
Internal Fault Basic Unit
Fuel train unequal
03
41 BU
Internal Fault Basic Unit
Relay control word unequal
03
42 BU
Internal Fault Basic Unit
ROM-CRC signature unequal
03
43 BU
Internal Fault Basic Unit
Phase unequal
03
44 BU
Internal Fault Basic Unit
(Key + main loop counter) unequal
04
-
BU
Internal Fault Basic Unit
Unsuccessful synchronization of the 2
µCs
*1)