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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
Error
code
Diagnostic
code
Device Display Meaning for the LMV5x system Troubleshooting
19 01..2F SA Internal Fault Actuator The diagnostic value is made up of the fol-
lowing faults or their combinations (the in-
dividual diagnostic codes are added up in
hexadecimal format)
19 01 SA Internal Fault Actuator Fault occurred on the air actuator when
comparing potentiometer channels A and
B
Check CAN cabling and terminators as specified
19 02 SA Internal Fault Actuator Fault occurred on the active fuel actuator
when comparing potentiometer channels A
and B
Check CAN cabling and terminators as specified
19 04 SA Internal Fault Actuator Fault occurred on auxiliary actuator 1
when comparing potentiometer channels A
and B
Check CAN cabling and terminators as specified
19 08 SA Internal Fault Actuator Fault occurred on auxiliary actuator 2
when comparing potentiometer channels A
and B
Check CAN cabling and terminators as specified
19 20 SA Internal Fault Actuator Fault occurred on auxiliary actuator 3
when comparing potentiometer channels A
and B
Check CAN cabling and terminators as specified
1A 1 BU Slope too steep Slope of curve section is too steep Check curve data. If there is a slope greater than
- 3.6° per 0.1 % (30 s ramp)
- 1.8° per 0.1 % (60 s ramp)
- 0.9° per 0.1 % (120 s ramp)
load change between 2 curvepoints -> change load as-
signment of the curvepoints such that above condition will
be satisfied
1B # BU Operation in Parameter Setting
Mode quit
Programming mode is still active in Phase
62 and the target positions (normal opera-
tion) have not been reached
When parameterizing the curve, the plant should be oper-
ated in manual mode with “Burner on“. This prevents the
load controller from triggering the change to shutdown. Re-
sponse of the TL can trigger the same action, however, but
the value (curvepoint) currently handled can still be stored
in standby or lockout
1C # BU Ignition Pos not defined The relevant ignition positions have not
been parameterized
Set the ignition positions
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