Siemens LMV5 Series Technical Instructions page 254

Error Diag.
Device Display
Code Code
60
61
62
63
64
65
66
LMV5
67 Load Internal Fault
A6
Controller Load Controller
68
Module
69
6A
6B
6C
6D
6E
6F
Fault with Sensors Connected to Internal Load Controller, in Base Unit (LMV5)
70
71
72
73
74
75
LMV5
76
Load Internal Fault
A6
Controller Load Controller
77
Module
78
79
7A
7B
7C
Section 7
Meaning for the LMV5x System
Fault with Base Unit (LMV5) Internal Load Controller
Timeout during calibrate_ADC
Timeout during read_conversion
Timeout during calibrate_ADC
Fault during RedInv reading from A/D converter
Fault internal A/D converter
Gain register has been changed
Offset register has been changed
Too great / small gain for self-calibration of A/D converter
Too great / small offset for self-calibration of A/D converter
Fault internal A/D converter
Fault during PWM test
Faulty reference voltage
Fault transmitter power supply
Fault analog output, voltage deviation too great
Fault during resistance test PT100 input (X60)
Fault during diode test PT100 input
Measured value varies too much: PT100 sensor (terminal X60)
Measured value varies too much: PT100 line (terminal X60)
Measured value varies too much: PT1000 (terminal X60)
Measured value varies too much: PWM
Measured value varies too much: Voltage measurement input 2
(terminal X61)
Measured value varies too much: Current measurement input 2
(terminal X61)
Measured value varies too much: Voltage measurement input 3
(terminal X62)
Measured value varies too much: Current measurement input 3
(terminal X62)
Excessive voltage value or wrong polarity PT100 sensor
(terminal X60)
Excessive voltage value or wrong polarity PT100 line (terminal
X60)
Excessive voltage value or wrong polarity PT1000 (terminal
X60)
Excessive voltage value or wrong polarity PWM
Excessive voltage value or wrong polarity voltage
measurement input 2 (terminal X61)
If fault occurs sporadically, reduce electrical noise.
If fault occurs continuously, replace LMV5.
1) Check wiring and sensor. Re-wire or replace sensors
if necessary.
2) Use shielded cable on sensor wiring.
3) Make sure that sensor wiring is not run next to high
voltage AC wiring.
4) If the diagnostic code indicates excessive voltage,
check input with meter. Trace voltage source.
Page 46
HOME
Corrective Action
SCC Inc.