Siemens LMV51 Series Basic Documentation page 236

Error Diagnostic Device
code code
A6 69 LC
A6 6A LC
A6 6B LC
A6 6C LC
A6 6D LC
A6 6E LC
A6 6F LC
A6 70 LC
A6 71 LC
A6 72 LC
A6 73 LC
A6 74 LC
A6 75 LC
A6 76 LC
A6 77 LC
A6 78 LC
A6 79 LC
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Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Internal Fault Load Controller Fault internal A/D converter
Internal Fault Load Controller Fault during PWM test
Internal Fault Load Controller Faulty reference voltage
Internal Fault Load Controller Fault transmitter power supply
Internal Fault Load Controller Fault analog output, voltage deviation too
great
Internal Fault Load Controller Fault during resistance test PT100 input
(X60)
Internal Fault Load Controller Fault during diode test PT100 input
External Fault Load Controller Measured value varies too much:
PT100 sensor (X60)
External Fault Load Controller Measured value varies too much:
PT100 line (X60)
External Fault Load Controller Measured value varies too much:
PT1000 (X60)
External Fault Load Controller Measured value varies too much:
PWM
External Fault Load Controller Measured value varies too much:
Voltage measurement input 2 (X61)
External Fault Load Controller Measured value varies too much:
Current measurement input 2 (X61)
External Fault Load Controller Measured value varies too much:
Voltage measurement input 3 (X62)
External Fault Load Controller Measured value varies too much:
Current measurement input 3 (X62)
External Fault Load Controller Excessive voltage value or wrong polarity
PT100 sensor (X60)
External Fault Load Controller Excessive voltage value or wrong polarity
PT100 line (X60)
Meaning for the LMV5x system Troubleshooting
*1)
*1)
*1)
*1)
*1)
*1)
*1)
Check wiring of input.
Check wiring of input.
Check wiring of input.
*1)
Check wiring of input. Check input voltage value for hum-
ming voltages
Check wiring of input. Check input voltage value for hum-
ming voltages
Check wiring of input. Check input voltage value for hum-
ming voltages
Check wiring of input. Check input voltage value for hum-
ming voltages
Check wiring of input
Check wiring of input
CC1P7550en
13.08.2004