Siemens LMV5 Series Basic Documentation page 198

Error Diagnostic Device
code code
19 04 SA
19 08 SA
19 20 SA
1A 1 BU
1B # BU
1C # BU
1C 01..3F BU
1C 01 BU
1C 02 BU
1C 04 BU
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Siemens Building Technologies Basic Documentation LMV51...
HVAC Products 15 Addendum 1: List of fault status messages of LMV51... system
Display
Internal Fault Actuator Fault occurred on auxiliary actuator 1
when comparing potentiometer channels A
and B
Internal Fault Actuator Fault occurred on auxiliary actuator 2
when comparing potentiometer channels A
and B
Internal Fault Actuator Fault occurred on auxiliary actuator 3
when comparing potentiometer channels A
and B
Slope too steep Slope of curve section is too steep
Operation in Parameter Setting Programming mode is still active in Phase
Mode quit 62 and the target positions (normal
operation) have not been reached
Ignition Pos not defined The relevant ignition positions have not
been parameterized
Ignition Pos not defined The diagnostic value is made up of the
following faults or their combinations (the
individual diagnostic codes are added up
in hexadecimal format)
Ignition Pos not defined Ignition position of the air actuator
Ignition Pos not defined Ignition position of the active fuel actuator
has not been parameterized
Ignition Pos not defined Ignition position of auxiliary actuator 1 has
not been parameterized
Meaning for the LMV5x system Troubleshooting
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
assignment of the curvepoints such that above condition
will be satisfied
When parameterizing the curve, the plant should be
operated in manual mode with "Burner on". This prevents
the load controller from triggering the change to shutdown.
Response of the TL can trigger the same action, however,
but the value (curvepoint) currently handled can still be
stored in standby or lockout
Set the ignition positions
CC1P7550en
01.10.2003