YOKOGAWA YTA610 User manual

User’s
Manual
Manual Change No. 18-0028-E
Oct. 19, 2018
Please use this manual change with the user’s manuals listed below.
1. Applicable User’s Manual and Page
IM No. (Edition) Page Revised contents
IM 01C50T01-02EN(3)
YTA610 and YTA710
Temperature Transmitters
(HART Protocol)
Add CAUTION.
Add *2 and *3.
3-15 3.5.3 Burnout Function
3.5.9 Burst Mode
Table 4.1 List of Alarms
Table 4.1 List of Alarms
Table 4.2 Output Operation
4.3 Diagnostics Function
Applicable part
4-3
4-4
Add *2 and *3.
Change Terminal Sensor Fail in Table4.2.
Add NOTE.
4-2
3-18
Add NOTE.
Add CAUTION.

<3. Parameter Setting > 3-15
IM 01C50T01-02EN
(2) Auto Release Time
Thisparametercanbeusedtosettheautorelease
timeofLoopTestandSimulation(See3.5.14).
• Proceduretocallupthedisplay
Devicesetup→Diag/Service→TestDevice→
AutoReleaseTime
Selectfrom10minutes,30minutes,60
minutes,3hours,6hoursor12hours.
Defaultsettingis10minutes.
NOTE
Ifthetransmitterisequippedwiththeintegral
indicator,theLCDdisplaysF.O.
3.5.3 Burnout Function
(1) Sensor burnout
Conguretheburnoutmodeinthecaseofsensor
failureordisconnection.
• Proceduretocallupthedisplay
Devicesetup→Basicsetup→AOBasicSetup
→AOSensorBODir:SelectHigh,Low,User
CongorOff.
→AOSensorBOUnit:SelectmAor%
→AOSnsBOUsrVal:Outputsusersetvalue
within3.6to21.6(mA)or-2.5to110(%)
Whenthesensorfailureisdetected,the
transmitteroutputsoneofthefollowingvalues.
Low:Outputs3.6mA
High:Outputs21.6mA
User(mA):OutputsusersetvalueinmA.
Settablewithin3.6to21.6mA.
User(%):Outputsusersetvaluein%.
Settablewithin-2.5to110%.
Off:TheburnoutoutputisNOTdened
Duringsensorburnouttime,anyofAL.09,AL.10
to13orAL.22alarmmessageisgenerated.(See
Chapter4fordetails.)
(2) Burnout in hardware failure
Theoutputstatusofthetransmitterinhardware
failureissetusingaslideswitchontheMAIN
assembly.Thecurrentsettingcanbecheckedin
parameter“PVAlrmtype”.
• Proceduretocallupthe“AOAlrmtype
parameter”display
Devicesetup→Basicsetup→AOBasicSetup
→AOAlrmtyp
Hi:Morethan110%output(21.6mA)
Lo:Lessthan-5%output(3.2mA)
3.5.4 Integral Indicator Display Mode
Whenanintegralindicatorisspeciedwiththe
transmitter,thedisplayitemsanddisplaycyclecan
becongured.
(1) Process Variable Display
ProcessvariablesthatcanbedisplayedinYTAare
shownintheTable3.1.Acycleofuptofourdisplays
(DispOut1,DispOut2,Disp%,DispmA)canbe
shownbyassigningvariablestotheparameters.
Indicatevaluesofprocessvariableswiththe
indicationlimits–99999to99999.
F0305.ai
P SP T F
%
Table 3.1 Process Variable Display
Process variable Disp Out1 Disp Out2
Sensor1  
Sensor1−Terminal  
Terminal  
Sensor2  
Sensor2−Terminal  
Sensor1−Sensor2  
Sensor2−Sensor1  
Averege  
SensorBackup  
PV  
SV  
TV  
QV  
Notused ─ 
NOTE
Even if abnormality or disconnection of the
terminal block temperature sensor occurs,
AL22 may not be output and AL04 may be
generated.
CAUTION
There is a time lag between sensor failure and
sensor abnormality detection.
Since the failed measurement value is output, the
current output also becomes undefined.
When an error is detected, it becomes the output
set with this parameter.
However, when sensor burnout is set to OFF, it
may be held with indefinite measurement value,
so please understanding this point.

<3. Parameter Setting > 3-18
IM 01C50T01-02EN
operation,eveniftheSensor1recovers,the
transmitterwillcontinuetouseSensor2untilthe
backupoperationisresetbyparameterorpoweris
turnedoff.IfSensor2failsduringbackupoperation,
thetransmitterwillsend“BackupSns2Fail”tothe
integralindicatorandHARTcommunicatorand
outputthe“Sensorburnout”value.
Buttwosensorsshouldbesametype.
Sensorvalue:DisplayinBackup
(1) ToenableSensorbackupfunction
a) Setthesensortype,wireandunitforSensor1
and2.(See3.4.1)AnySensortypeexcept
“Non-connection”canbeselected.
b) MaptheSensorBackupasPV.
c) SetthesensorburnouttypetoHigh,Lowor
usersettingvalue.Ifthesensorburnouttype
issetto“off”,thesensorfailurewillnotbe
detectedandthebackupfunctionwillnotact.
Table 3.2 Burst Parameters
Command
Parameter Burst Command Burst Msg Trigger
Mode
Burst Trigger
Source Burst Trigger Units
PV Cmd1:PV Continuous ─
Window PV Dependonthe
assignedvariable
to PV
Rising
Falling
On-change
LoopCurrentand
PercentRange
Cmd2:%range/current Continuous ─
Window %range %
Rising
Falling
On-change
PV,SV,TV,QV Cmd3:Dynvars/current Continuous ─
Window PV Dependonthe
assignedvariable
to PV
Rising
Falling
On-change
DeviceVariable Cmd33:Devicevars Continuous ─ ─
Window TopofBurstDevice
Variable
Dependson
mapping
Rising
Falling
On-change
DeviceVariablewith
status
Cmd9:Devicevarsw/status Continuous ─ ─
Window TopofBurstDevice
Variable
Dependson
mapping
Rising
Falling
On-change
AdditionalDevice
status
Cmd48:ReadAdditional
DeviceStatus
Continuous ─ ─
On-change Allstatus ─
(2) TomakethetransmitterreturntousingSensor1
inBackupOperation
b) Proceduretocallupthedisplay
Devisesetup→Detailedsetup→Sensor
Setup→SensorBackup→recoverSensor
c) ConfirmthatSensorBackupStateis
“Sensor1 Active”.
3.5.9 Burst Mode
WhentheBurstmodeisenabled,thetransmitter
continuouslysendsuptothreedatalistedinTable
3.2.WhentheBurstmodeissetto“ON”,transmitter
continuouslysendsalarmsignalalso.When
changingthesettingofBurstmode,set“Off”tothe
Burstmode.Defaultsettingis“Off”.
CAUTION
There is a time lag between sensor failure and
sensor abnormality detection.
Since the failed measurement value is output,
the current output also becomes undefined.
For this reason, until failure of Sensor 1 switches
to Sensor 2, or ”Output state at sensor
burnout” due to failure of Sensor 2 The output
becomes undefined until switching to the output.
When an abnormality is detected, it is output
according to the measured value of Sensor 2 or
"Output state at sensor burnout".
a) ConfirmthattheSensor1isrecovered
• Specications
Specications:Dualinputonly
SensorType:Anytypeavailable

<4. Diagnostics > 4-2
IM 01C50T01-02EN
• Proceduretocallupthedisplay
Devicesetup→Processvariables→Dynamic
Variable→PV
→ PDQ:PVdataquality
→ LS:PVlimitstatus
Devicesetup→Processvariables→Device
Variables→Sensor1
→ Sns1PDQ:Sensor1dataquality
→ Sns1LS:Sensor1limitstatus
Aboveprocedureisthesameaboutother
variables.
Table 4.1 List of Alarms
Indicator HART display Cause Output operation during
alarm Action
AL.00 CPUFail MainCPUfailed. AccordingtotheBurnoutin
Hardwarefailureoutput
Communicationdisabled
Replacetheamplier.
AL.01 SensorNVFail Sensornon-volatilememory
veriesalarm.
AccordingtotheBurnoutin
Hardwarefailureoutput
Communicationenabled
AL.02 TempNVFail Non-volatilememoryof
TEMPASSYveriesalarm.
AL.03 ADConvFail Inputcircuithardwarefailed.
AL.04*2 MainRvrsCalcFail MAINASSYmemoryfailed.
AL.05 TempRvrsCalcFail TEMPASSYmemoryfailed.
AL.06 TempVoltageFail TEMPASSYvoltagefailed.
AL.07 CommNVFail Communicationnon-volatile
memoryveriesalarm.
AL.08 TempNVWarning Non-volatilememoryofthe
TEMPASSYveriesalarm.
Continuetooperateand
output
AL.09 IntCommFail Internalcommunication
failed.
AccordingtotheSensor
Burnoutoutput
Communicationenabled
AL.10 Sensor1Failure Sensor1failedor
disconnectedfromterminal
block.
ReferTable4.2. • Checksensorfor
damage.
• Checkterminal
connection.
AL.11 Sensor2Failure Sensor2failedor
disconnectedfromterminal
block.
AL.12*1 Sensor1Short Sensor1short-circuited.
AL.13*1 Sensor2Short Sensor2short-circuited.
AL.14*1 Sensor1 Corrosion Sensor 1 corroded. Continuetooperateand
output
Checksensor,
terminal,andcable.
AL.15*1 Sensor2 Corrosion Sensor 2 corroded.
AL.20 Sensor1SignalError Sensor1inputisoutof
measurablerange.
• Checksensor
connection.
• Checksensortype
selected.
AL.21 Sensor2SignalError Sensor2inputisoutof
measurablerange.
AL.22*3 TerminalSensorFail Terminalblocktemperatureis
abnormal.Orterminalblock
temperaturesensorfailed.
ReferTable4.2 Replacetheamplier.
AL.23 BackupSensor1Fail Duringsensorbackup
operation,Sensor1fails,it
hasoutputSensor2.
Operatingtothebackupside.
Whenthebackupsidealso
fails,outputisaccordingto
burnoutsetting.
Checksensor1for
damage.
AL.24 BackupSensor2Fail Duringsensorbackup
operation,Sensor2fails.
Continuetooperateand
output
Checksensor2for
damage.

<4. Diagnostics > 4-3
IM 01C50T01-02EN
Indicator HART display Cause Output operation during
alarm Action
AL.25 Sensor Drift Sensor drift Continuetooperateand
output
Checksensorfor
damage.
AL.26*1 Sensor1TempCycle Temperaturecyclingtimes
ofSensor1exceedsthe
threshold
Resettempcycleof
sensor1.
AL.27*1 Sensor2TempCycle Temperaturecyclingtimes
ofSensor2exceedsthe
threshold.
Resettempcycleof
sensor2.
AL.30 OutputTooLow PVvalueisbelowtherange
limitsetting.
Lowerlimit3.68mA(-2%) ChecktheLRV
settingandadjust.
AL.31 OutputTooHigh PVvalueisabovetherange
limitsetting.
Upperlimit20.8mA(105%) ChecktheURV
settingandadjust.
AL.40 Sensor1TempLow Measuredtemperatureof
sensor1istolow.
Continuetooperateand
output
Checksensortype
selected.
AL.41 Sensor1TempHigh Measuredtemperatureof
sensor1istohigh.
AL.42 Sensor2TempLow Measuredtemperatureof
sensor2istolow.
AL.43 Sensor2TempHigh Measuredtemperatureof
sensor2istohigh.
AL.44 AmbTempLow Ambienttemperatureis
below-40degreeC.
Useaheaterto
raisetheambient
temperature,orreset
toahigherlevel.
AL.45 AmbTempHigh Ambienttemperatureis
above85degreeC.
Takeenoughdistance
fromthesourceof
heat,orresettoa
lowerlevel.
AL.50 LRVTooLow LRVsettingisbelow
thesensoroperating
temperaturerange.
ChecktheLRV
setting.
AL.51 LRVTooHigh LRVsettingisabove
thesensoroperating
temperaturerange.
AL.52 URVTooLow SettingtheURVisbelow
thesensoroperating
temperaturerange.
ChecktheURV
setting.
AL.53 URVTooHigh SettingtheURVisabove
thesensoroperating
temperaturerange.
AL.54 SpanTooSmall Spanisbelowthe
recommendedminimum
span.
ChecktheLRVand
URVsetting.
AL.60 IllegalPVCfg Thereisasettingalarmin
thesensorthatismappedto
thePV
Holdtheoutputofthe
previousalarm
Whenitoccursatstartup,
holdat4mA
CheckthePV
mapping.
AL.61 IllegalSensor1Cfg Thereisafalsesetto
sensor1.
Continuetooperateand
output
Checkthesensor1
setting.
AL.62 IllegalSensor2Cfg Thereisafalsesetto
sensor2.
Checkthesensor2
setting.
AL.70 OutputManualMode Underlooptestmode Settingvalueoflooptest Checklooptest
mode.
*1: ApplicableonlyforYTA710.
*2: AL04 may be generated even when abnormality or disconnection of the terminal block temperature sensor occurs.
*3: Even if abnormality or disconnection of the terminal block temperature sensor occurs, AL22 may not be output and AL04 may
be generated.

<4. Diagnostics > 4-4
IM 01C50T01-02EN
Table 4.2 Output Operation
Current output
mapping Sensor1 Failure Sensor2 Failure Sensor1 Short*3 Sensor2 Short *3 Terminal
Sensor Fail
SENS.1 SensorBurnout *1 SensorBurnout *1 Output Hold*4
S.1-TER SensorBurnout *1 SensorBurnout *1
TERM *1 *1 *1 *1
SENS.2 *1 SensorBurnout *1 SensorBurnout
S.2-TER *1 SensorBurnout *1 SensorBurnout
S.1-S.2 SensorBurnout SensorBurnout SensorBurnout SensorBurnout
S.2-S.1 SensorBurnout SensorBurnout SensorBurnout SensorBurnout
AVG SensorBurnout SensorBurnout SensorBurnout SensorBurnout
BACKUP *2 *2 *2 *2
*1: Continuetooperateandoutput.
*2:Whenbothsensor1andsensor2occurerror,outputisburnout.
*3: ApplicableonlyforYTA710.
*4: Fixed output value just before the alarm occurred.
4.2 Logging Functions
TheYTAserieshavethecapabilitytostorethedata
usefulfordiagnosisoftheproblems.
(1) Alarm log
Uptofouralarmhistoriesarestoredinthe
transmittermemory,andcanbeseenusingthe
followingprocedures.
Callupthedisplay:Devicesetup→Diag/Service→
StatusLog
(2) Max/Min log
MinimumvalueandMaximumvalueoftheprocess
variablesarestoredinthetransmittermemoryand
canbechecked.
a) Proceduretocallupthedisplay
Devicesetup→Diag/Service→SensorMax/
MinLog
b) TocleartheloggeddataforProcessvariables
exceptTermvariables,selectresetSnsMax/
Min.
NOTE
Thesevaluesmaybecomebigbydisconnection
ofthesensor,etc.Pleaseresetinthiscase.
(3) Operation Time
Transmitter’soperationtimefromtherstpower-on
iscounted.Callupthe“OperationTime”displayto
checkthetime.
Devicesetup→Detailedsetup→Device
information→Date&Time→OperationTime
NOTE
OperationTimeissavedevery15minutes.
4.3 Diagnostics Function
TheYTAhasthefollowingdiagnosticfunctions.
(1) Hardware Failure
ThisfunctiondetectsFailuresofCPU,AD
converter,memory,etc.
(2) Sensor Failure
Thisfunctiondetectsanydisconnectionofsensors.
Whenthecurrentisappliedandtheresistanceofa
sensorisabovethethreshold,thefunctionoutputs
adisconnectionalarm.
Parametersetting:Notnecessary
Alarmoutput:Whentheresistanceisabovethe
threshold,thefunctionoutputsthealarmof
Sensor1Failure(AL.10)orSensor2Failure
(AL.11).
(3) Terminal block Failure
ThisfunctiondetectsanydisconnectionatCJC.
WhenitdetectsthattheresistanceofCJCisabove
thethreshold,thefunctionoutputsanalarm.
Parametersetting:Notnecessary
Alarmoutput:Whentheresistanceisabovethe
threshold,thefunctionoutputsthealarmof
TerminalSensorFail(AL.22).
NOTE
Even if abnormality or disconnection of the
terminal block temperature sensor occurs, AL22
may not be output and AL04 may be generated.
Output Hold*4
Output Hold*4
Output Hold*4
Output Hold*4
Output Hold*4
Output Hold*4
Output Hold*4
Output Hold*4