<8. Maintenance>
8-7
IM 01W03D01-01EN
8.10.3 Errors and Countermeasures
Table 8.4
Error Message Summary
Integral
indicator
NAMUR
NE107
category
*
1
Bit
Diagnostic
Status
Diagnostic
Status Detail
Cause
Release/
recovery
conditions
(except
restart) *
2
Output
Operation
Action
AL.01 *
3
F
27
Faults in
electronics
ADAPTER FAIL
FN310
failure
None
Output value:
Hold previous
value
Output status:
BAD Device
Failure
Contact
Yokogawa
service
personnel.
AL.02 *
3
ANTENNA FAIL FN110failure None
Contact
Yokogawa
service
personnel.
AL.03 *
3
INTERNAL BUS
FAIL
Communication
failure between
FN110 and
FN310
None
---
Contact
Yokogawa
service
personnel.
AL.10
F
26
Faults in
sensor or
actuator
element
SENSOR FAIL Disconnection
or
communication
error, between
the HART
device and
FN310
None
Output value:
Hold previous
value
Output status:
BAD Sensor
Failure
Check the
installation
environment
of HART
devise and
connecting
method
of HART
devices and
FN310.
AL.20
M
20
Power is
critical low:
maintenance
need short-
term
CRITICAL
LOWBAT
Low
remaining
battery
voltage
None
Normal action Replace the
batteries.
19
Power is low:
maintenance
need mid-
term
LOWBAT ALM
Low
remaining
battery
voltage
None
Normal action Replace the
batteries.
AL.45
O
22
Environmental
conditions
out of device
specification
ADAPTER
TEMP HI
FN310
temperature
is above
+85°C
Recovers
when the
temperature
returns to
+85°C below
Normal action Check the
ambient
temperature
of the FN310
ADAPTER
TEMP LO
FN310
temperature
is below
-40°C
Recovers
when the
temperature
returns to
-40°C or
more
Normal action Check the
ambient
temperature
of the FN310
ANTENNA
TEMP HI
FN110
temperature
is above
+85°C
Recovers
when the
temperature
returns to
+85°C below
Normal action Check the
ambient
temperature
of the FN110
ANTENNA
TEMP LO
FN110
temperature
is below
-40°C
Recovers
when the
temperature
returns to
-40°C or
more
Normal action Check the
ambient
temperature
of the FN110
