Siemens LMV51 Series Basic Documentation page 235

Error Diagnostic Device
code code
A6 4E LC
A6 50 LC
A6 51 LC
A6 52 LC
A6 53 LC
A6 54 LC
A6 55 LC
A6 56 LC
A6 57 LC
A6 58 LC
A6 59 LC
A6 5A LC
A6 60 LC
A6 61 LC
A6 62 LC
A6 63 LC
A6 64 LC
A6 65 LC
A6 66 LC
A6 67 LC
A6 68 LC
Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Internal Fault Load Controller CAN error
Short-circuit Pt100 Sensor Short-circuit sensor PT100 (X60.1 X60.4) Check wiring and sensor
Open-circuit Pt100 Sensor Open-circuit sensor PT100 (X60.1 X60.4) Check wiring and sensor
Open-circuit Pt 100 Sensor (Line Open-circuit compensation line of sensor
Compens) PT100 (X60.2 X60.4)
Short-circuit Pt1000 Sensor Short-circuit sensor PT1000 (X60.3
X60.4)
Open-circuit PT1000 Sensor Open-circuit sensor PT1000 (X60.3
X60.4)
Short-circuit Ni1000 Sensor Short-circuit sensor Ni1000 (X60.3 X60.4) Check wiring and sensor
Open-circuit Ni1000 Sensor Open-circuit sensor Ni1000 (X60.3
X60.4)
Overvoltage at Input 2 Overvoltage at input 2 (X61)
Open-circuit / Short-circuit at In- Open-circuit / short-circuit input 2 (X61)
put 2
Overvoltage at Input 3 Overvoltage at input 3 (X62)
Open-circuit / Short-circuit at In- Open-circuit / short-circuit input 3 (X62)
put 3
Internal Fault Load Controller Timeout during calibrate_ADC
Internal Fault Load Controller Timeout during read_conversion
Internal Fault Load Controller Timeout during calibrate_ADC
Internal Fault Load Controller Fault during RedInv reading from A/D
converter
Internal Fault Load Controller Fault internal A/D converter
Internal Fault Load Controller Gain register has been changed
Internal Fault Load Controller Offset register has been changed
Internal Fault Load Controller Too great / small gain for self-calibration
of A/D converter
Internal Fault Load Controller Too great / small offset for self-calibration
of A/D converter
Meaning for the LMV5x system Troubleshooting
*1)
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
Check wiring and sensor
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CC1P7550en
13.08.2004