Figure 52 - Namur Output Level Selection; Table 23 - Fatal Faults That Trigger Namur - FCI MT100 Installation, Operation And Maintenance Manual

TROUBLESHOOTING
When NAMUR is enabled, and a fatal fault is detected, the 4-20 mA output is forced to the preselected NAMUR output level. Use the Click
to Test NAMUR button (forces NAMUR output) as needed to verify the system setup and wiring.
Fault Bit
1
4
6
11
14
20
21
22
24
27
30
31
32
33
36
37
38
39
40
41
42
43
90
Figure 52 – NAMUR Output Level Selection
Table 23 – Fatal Faults that Trigger NAMUR
CORE: any of these errors: I2C error, UART error, Mutex error or Watchdog Reset.
CORE: unable to update process data (PD_NO_FE_DATA). Unable to obtain/use data from any active FEs.
CORE: detects FRAM/SPI error.
(Any) FE Board Temperature Out of Limits
CORE: unable to communicate with one or more FEs (PD_COMM_ERROR).
CORE: averaged temperature above "Temperature Max."
CORE: averaged temperature above "Temperature Min."
(Any) FE reports SENSOR_HEATER_SHORTED_FAULT.
(Any) FE reports SENSOR_HEATER_OPEN_FAULT.
(Any) FE reports SENSOR_ ADC_BELOW_ MIN_FAULT.
(Any) FE reports SENSOR_ ABOVE_ MAX_TEMPERATURE_FAULT.
(Any) FE reports SENSOR_ UNDER_ MIN_TEMPERATURE_FAULT.
(Any) FE reports TMP100_TEMPERATURE_ADC_FAULT.
(Any) FE reports LTC2654_DAC_FAULT.
(Any) FE reports I2C0_FAULT.
(Any) FE reports HEATER_MONITOR_ADC_FAULT.
(Any) FE reports PORT_EXPANDER_FAULT.
(Any) FE reports DELTA-R_ADC_FAULT.
(Any) FE reports REF-R_ADC_FAULT.
(Any) FE reports FE_FRAM_FAULT.
(Any) FE reports ACT_EXC_CURRENT_FAULT.
(Any) FE reports REF_EXC_CURRENT _FAULT.
Fatal Fault Error Or Status Descriptions
MT100 Multipoint Flow Meter
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