Siemens LMV51.000B2 - Page 210

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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
16 05 BU Internal Fault Basic Unit VSD curve is not fully defined Check the curve to see if correct values have been entered
for the VSD. Readjust the ratio curve, if required
16 0A BU Internal Fault Basic Unit Calculated P-part outside the permissible
range
Check to see if correct values have been entered for the
controller parameters. Readjust O2 trim control, if required,
or repeat the settings
16 0B BU Internal Fault Basic Unit Calculated I-part outside the permissible
range
Check to see if correct values have been entered for the
controller parameters. Readjust O2 trim control, if required,
or repeat the settings
16 0C BU Internal Fault Basic Unit Calculated system delay time outside the
permissible range
Check to see if correct values have been entered for the
controller parameters. Readjust O2 trim control, if required,
or repeat the settings
16 0D BU Internal Fault Basic Unit Calculated O2 setpoint outside the permis-
sible range
Check to see if correct values have been entered for the O2
setpoints. Readjust O2 trim control, if required, or repeat
the settings
16 0E BU Internal Fault Basic Unit Calculated O2 min. value outside the per-
missible range
Check to see if correct values have been entered for the O2
min. values. Readjust O2 trim control, if required, or repeat
the settings
16 0F BU Internal Fault Basic Unit Calculated O2 ratio value outside the per-
missible range
Check to see if the correct values have been entered for the
O2 ratio values. Readjust O2 trim control, if required, or re-
peat the settings
16 03 BU Internal Fault Basic Unit The load / point number predefined by the
AZL… lies outside the permissible range
*1)
16 14 BU Internal Fault Basic Unit Calculated standardized value lies outside
the permissible range
Check if the correct values have been entered for the stan-
dardized values. Readjust O2 trim control, if required, or re-
peat the settings
16 20 BU Internal Fault Basic Unit With hysteresis compensation: Permissible
target positioning range exceeded
*1)
16 21 BU Internal Fault Basic Unit The load / point number predefined by the
AZL… lies outside the permissible range
*1)