Siemens LMV5 Series Technical Instructions page 258

Error Diag.
Device Display
Code Code
18
Internal Fault AZL
1A
No valid
1B Parameter
Backup
1C
20
Internal Fault AZL
22
24
28
A7 AZL5
Fault
30 Communication
eBUS
38 Internal Fault AZL Interface mode could not be terminated
Communication
40
AZL with PC tool
88
Internal Fault AZL
89
8A
Section 7
Meaning for the LMV5x System
Fault with AZL5...
CAN warning level
EEPROM fault
Fault during copying of a parameter page
Page in EEPROM was disrupted, has been restored
Display fault
RTC is locked, permanently busy
Buffer for page copies too small
Time stamp could not be sent
Fault in connection with eBUS communication
Parameterization fault PC tool. Disclosed by key value check in
AZL
RAM fault with redundant inverse variables
Program run fault, execution of program code that will probably
never be executed
Unintentional watchdog reset
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Corrective Action
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5
1) If the error occurs in phase 22 together with a VSD,
check the wiring of the VSD
2) If fault occurs sporadically: Reduce electrical noise.
3) If fault occurs constantly: Replace AZL5
Back up LMV5 parameters to AZL. A prompt for this
comes up when exiting the Params & Display menu.
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5
Check wiring on RJ45 connector, located on the
underside of the AZL5..
Reset the unit.
Check cable between AZL and PC. A null modem
adapter must be used on the 9 pin connector if the
cable does not have this internally. A USB-to-serial
adapter is OK to use when connecting the AZL to a
laptop.
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5
SCC Inc.