Overview - ABB CoriolisMaster FCH400 Series Operating Instructions Manual

132 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E
... 10 Diagnosis / error messages

Overview

The counter readings and the states of the current outputs and the alarm output are represented by symbols; please see the table
below.
Symbol Description
Counter stop
— No change, current value
1) When the error occurs, the corresponding measurement variable is calculated with the temperature 20 °C.
2) When the error occurs, the corresponding measurement variable is set to the value with density = 1.
The last 'good' measured value is retained.
HOLD
Alarm (general)
High alarm
Low alarm
98 No Frontend Board detected
96 DSP Failure on Frontend Board.
94 Safety Alarm Curr.Out 31/32
93 Sensor amplitudeout of range.
92 FEB voltages outside range.
91 MB voltages outside range.
90 Sensor temperature measure error
88 FEB communication error. EMC
disturbance.
86 Curr.Out 31/32 com error.
84 NV data defect. Data storage
irreparable.
82 Incompatible Frontend Board.
80 Density failure
78 Flowrate to zero
76 All totalizer stopp.
74 Totalizer reset. Reset of one or
more Totalizer
72 Simulation is on. Simulating
process/output value.
70 An alarm is simulated.
65 CO 31/32 readbackcurrent deviates
60 Sensor driver current to high.
Process values
0 0 1 20 0
0 0 1 – 0
– – – – –
0 0 1 – 0
0 0 0 0 0
– – – – –
1) 1) 1) 20 1)
0 0 1 20 0
– – – – –
0 0 1 20 0
0 0 1 20 0
0 0 1 20 0
0 0 – – –
– – – – –
– – – – –
– – – – –
– – – – –
– – – – –
– – – – –
Counter
0 1 0 –
0 1 0 –
– – – –
0 1 0 –
0 0 0 0
– – – –
1) 1) 1) –
0 1 0 –
– – – –
0 1 0 –
0 1 0 –
0 1 0 –
0 – 0 –
– – –
– – – 0
– – – –
– – – –
– – – –
– – – –
Current output
–
CO1 only
In accordance with process value
–
–
–
< 3.3 mA
–