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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
1C 01..3F BU Ignition Pos not defined 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)
1C
01 BU Ignition Pos not defined Ignition position of the air actuator
1C 02 BU Ignition Pos not defined Ignition position of the active fuel actuator
has not been parameterized
1C 04 BU Ignition Pos not defined Ignition position of auxiliary actuator 1 has
not been parameterized
1C 08 BU Ignition Pos not defined Ignition position of auxiliary actuator 2 has
not been parameterized
1C 10 BU Ignition Pos not defined Ignition position of VSD has not been pa-
rameterized
1C 20 BU Ignition Pos not defined Ignition position of auxiliary actuator 3 has
not been parameterized
1D # BU Running time fault of actuators / VSD. Check the relevant actuators to see if they are mechanically
overloaded. Check power supply to the actuators and their
fuses.
The actuator’s ramp must be smaller to or equal to the
ramp parameterized in the basic unit.
The parameterized ramp of the VSD must be smaller than
the ramp parameterized in the basic unit (recommendation:
20 %)
1D 01..3F BU Fault Running Time 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)
1D 01 BU Fault Running Time Air Actuator Running time fault of air actuator
1D 04 BU Fault Running Time Aux Actuator Running time fault of auxiliary actuator 1
1D 08 BU Fault Running Time Aux Actuator Running time fault of auxiliary actuator 2