YOKOGAWA AXFA14C User Manual

7. Errors and Countermeasures for
Display unit and BRAIN protocol
NOTE
For FOUNDATIONeldbusprotocol,refertoIM
01E20F02-01E. For PROFIBUS PA protocol, refer to
IM 01E20F12-01E. For HART protocol, refer to the
applicable user’s manuals which can be downloaded
from our website.
ThetablebelowshowsasummaryoferrormessagesforDisplayunitandBRAINprotocols. Note:□:Alphabet
System Alarms (Device breakdown or inability to obtain correct measurements.)
Display unit/BRAIN (

60) content
Alarm countermeasure message
on display unit
Alarm description Countermeasure
10:uP Fault Contactnearestofceorservice
center
Microprocessor (CPU) failure ContactyournearestYokogawaofce
or service center.
11:EEPROM Fault Contactnearestofceorservice
center
EEPROM failure
12:A/D(H) Fault Contactnearestofceorservice
center
A/D converter failure
13:A/D(L) Fault Contactnearestofceorservice
center
14:A/D(Z) Fault Contactnearestofceorservice
center
15:Coil Open Cut the power and check coil & EX
cable
Flowtube coil is open-circuit Turn off the AXFA11 or the AXFA14
power supply and examine the
excitation cable for breakage. If there
is no breakage, contact your nearest
Yokogawaofceorservicecenter.
16:EEPROMDt Contactnearestofceorservice
center
EEPROM default values ContactyournearestYokogawaofce
or service center.
Process Alarms (Device is normal but process-related errors make correct measurement impossible.)
Display unit/BRAIN (

60) content
Alarm countermeasure message
on display unit
Alarm description Countermeasure
30:SigOverow Check signal cable and grounding Input signal error Carry out an investigation as follows:
• Check the signal cable for
breakage.
• Check for contact between signal
cable, power cable, and excitation
cable.
• Check for stray currents in the
uid.
Check the grounding.
31:Empty Pipe Fillowtubewithuid Flowtubeisnotlledwithuid Filltheowtubewithuid.
32:HH/LL Alm Checkowrateandsettingvalue Flow rate alarm for greater than High-
High limit value or less than Low-Low
limit value.
Check the flow rate and setting value
of High High limit and Low Low limit.
33:Adhesion Alm Clean electrodes Electrode adhesion alarm Clean the electrodes.
<7. Errors and Countermeasures for Display unit and BRAIN protocol>
62
IM 01E20A01-01EN

YOKOGAWA AXFA14C Specifications

General

Brand	YOKOGAWA
Model	AXFA14C
Category	Measuring Instruments
Language	English