Siemens LMV5 Quick Start Manual page 144

Error Diag.
Device Display
code code
Any #
3F
Internal Fault
17 01
Basic Unit
02
LMV5
03
Invalid Curve
18 Any #
Data
Any #
Act.
01..2F
01 Air Act.
Internal Fault
19
Actuator
Active
02
Fuel Act.
Aux 1
04
Act.
Aux 2
08
Act.
Aux 3
20
Act.
LMV5 QSG Rev 4
Meaning for the LMV5x system
Fault with Base Unit (LMV5)
(Internal) communication error of ELV
Detection of different data when making the data comparison
Timeout with program synchronization prior to data transmission
Timeout with data transmission
CRC fault during data transmission
Corruption in the combustion curve data
Fault with Actuator or CANBus cabling
Basic unit (ratio control system) has detected a fault
when comparing potentiometer channels A and B. Diagnostic
code shows on which actuator the fault occurred. See
diagnostic code
The diagnostic value is made up of the following faults or their
combinations (the individual diagnostic codes are added up in
hexadecimal format)
Fault occurred on the indivudual actuator (see diagnostic code)
when comparing potentiometer channels A and B
Sec 5 Pg 18
Corrective action
If fault occurs sporadically improve EMC. If fault occurs
continously, replace LMV5
Vaules on curve should be within 0.0 % - 100.0 % for
load and VSD, 0.0° - 90.0° for actuators. If possible,
adjust curve values back into the valid range. If this fault
occurs on a unit that was functioning correctly after
commisioning, replace LMV5
1) If fault occurs constantly: Replace actuator according
to diagnostic code. After actuator(s) are replaced, make
sure that the actuators do not "hunt" during operation.
This can be done by adjusting Paramter
"MinActuatorStep" and the PID loop.
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