FCI MT100 - Figure 52 - NAMUR Output Level Selection; Table 23 - Fatal Faults that Trigger NAMUR

TROUBLESHOOTING MT100 Multipoint Flow Meter
Figure 52 – NAMUR Output Level Selection
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.
Table 23 – Fatal Faults that Trigger NAMUR
Fault Bit
Fatal Fault Error Or Status Descriptions
1
CORE: any of these errors: I2C error, UART error, Mutex error or Watchdog Reset.
4
CORE: unable to update process data (PD_NO_FE_DATA). Unable to obtain/use data from any active FEs.
6
CORE: detects FRAM/SPI error.
11
(Any) FE Board Temperature Out of Limits
14
CORE: unable to communicate with one or more FEs (PD_COMM_ERROR).
20
CORE: averaged temperature above “Temperature Max.”
21
CORE: averaged temperature above “Temperature Min.”
22
(Any) FE reports SENSOR_HEATER_SHORTED_FAULT.
24
(Any) FE reports SENSOR_HEATER_OPEN_FAULT.
27
(Any) FE reports SENSOR_ ADC_BELOW_ MIN_FAULT.
30
(Any) FE reports SENSOR_ ABOVE_ MAX_TEMPERATURE_FAULT.
31
(Any) FE reports SENSOR_ UNDER_ MIN_TEMPERATURE_FAULT.
32
(Any) FE reports TMP100_TEMPERATURE_ADC_FAULT.
33
(Any) FE reports LTC2654_DAC_FAULT.
36
(Any) FE reports I2C0_FAULT.
37
(Any) FE reports HEATER_MONITOR_ADC_FAULT.
38
(Any) FE reports PORT_EXPANDER_FAULT.
39
(Any) FE reports DELTA-R_ADC_FAULT.
40
(Any) FE reports REF-R_ADC_FAULT.
41
(Any) FE reports FE_FRAM_FAULT.
42
(Any) FE reports ACT_EXC_CURRENT_FAULT.
43
(Any) FE reports REF_EXC_CURRENT _FAULT.
Fluid Components International LLC 90