Siemens LMV51 Series Basic Documentation page 209

Error Diagnostic Device
code code
15 01 SA
15 02 SA
15 04 SA
15 08 SA
15 10 VSD module Fan Speed not reached
15 20 SA
16 # BU
16 00 BU
16 01 BU
16 02 BU
16 03 BU
16 04 BU
Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Fault Positioning Actuator Positioning fault air actuator
Fault Positioning Actuator Positioning fault fuel actuator
Fault Positioning Actuator Positioning fault auxiliary actuator 1
Fault Positioning Actuator Positioning fault auxiliary actuator 2
The fan in combination with the VSD has
not reached the required speed
Fault Positioning Actuator Positioning fault auxiliary actuator 3
Internal Fault Basic Unit Basic unit has detected a plausibility fault
in the ratio control system.
The diagnostic code describes the cause
of the fault.
Internal Fault Basic Unit Ratio curve of the air actuator is not fully
defined
Internal Fault Basic Unit Ratio curve of the fuel actuator is not fully
defined
Internal Fault Basic Unit Ratio curve of auxiliary actuator 1 is not
fully defined
Internal Fault Basic Unit Ratio curve of auxiliary actuator 2 is not
fully defined
Internal Fault Basic Unit Ratio curve of auxiliary actuator 3 is not
fullydefined
Meaning for the LMV5x system Troubleshooting
Check characteristics of VSD for linearity. Remove filters,
damping and delay members
Check the curve to see if correct values have been entered
for the air actuator. Readjust the ratio curve, if required
Check the curve to see if correct values have been entered
for the fuel actuator. Readjust the ratio curve, if required
Check the curve to see if correct values have been entered
for auxiliary actuator 1. Readjust the ratio curve, if required
Check the curve to see if correct values have been entered
for auxiliary actuator 2. Readjust the ratio curve, if required
Check the curve to see if correct values have been entered
for auxiliary actuator 3. Readjust the ratio curve, if required
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CC1P7550en
13.08.2004