94
SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
9
Diagnosis / error messages
NOTICE
All Modbus addresses in this chapter are indicated in the format "PLC Base 1".
General
Errors encountered are itemized in tabular form on the following pages. The response of the transmitter on error detection is
described therein.
The table lists all possible errors together with a description of their impact on the value of measurement variables, the properties of
current outputs and the alarm output.
If no entry is indicated in the table field, there is no effect on the measurement variable or no alarm signal for the particular output.
The sequence of the errors in the table corresponds to the error priorities.
The first entry has the highest priority and the last has the lowest.
If multiple errors are detected simultaneously, the error with the highest priority determines the alarm condition of the measurement
variable and the current output. If an error with a higher priority does not affect the measurement variable or the output status, the
error with the next highest priority determines the status of the measurement variable and the output.
The following critical errors are indicated by slow flashing (frequency: 1 second) of the service LED in the transmitter terminal box.
Refer to
Service LED
on page 49.
Fault message
Error no.
Modbus address "Active alarm"
Sensor memory defective.
M038.009
10
NV data defect. Data storage irreparable.
F084.010
11
ADC Failure on Frontend Board.
F096.029
30
Electronics failFrontend Board.
F092.030
31
Sensor temperature out of range.
S090.031
32
Sensor failure or disconnected.
F093.033
34
Invalid Sensor configuration
M059.038
39
FEB voltages outside range.
F081.041
42
