YOKOGAWA EJA210E - Page 54

<7. Errors and Countermeasures>
53
IM01C25A01-01E
Integral
indicator
Cause
4-20mA Output
operation during error
Countermeasure
AL. 79
OV. DISP
Displayedvalueexceedslimit. Continuestooperateandoutput. Checksettingsandchangethemas
needed.
AL.87
FLG. HI
Flangetemperatureexceedsapreset
upper limit.
ItdependsontheDiagOutOption
setting.
Off:Continuetooperateandoutput.
Burnout:OutputsAOupperlimitorAO
lower limit.
Fallback:OutputsDiagOutFixedVal.
Checktheheaterfailure.
Checkthecapsuletemp.and
Ampliertemp.
AdjustFlgTempCoef.
AL.87
FLG. LO
Flangetemperatureisbelowapreset
lower limit.
AL.88
INVR.DP
Differentialpressure/pressure
uctuationdoesnotreachthereference
levelrequiredtoblockagedetectionso
thatnoblockagedetectioniscarried
out.
Continuetooperateandoutput. Checkprocesscondition.
AL.88
INVR.SL
Low-pressure-sideuctuationdoesnot
reachthereferenceuctuationlevel
requiredtoblockagedetection.
AL.88
INVR.SH
High-pressure-sideuctuationdoesnot
reachthereferenceuctuationlevel
requiredtoblockagedetection.
AL.88
INVR.F
BlkFcannotbeusedforblockage
detection for some reasons.
AL.89
ILBD.OV
Appointedthediagnosisrangeoutside.
AL.89
B BLK
BBlocking(both-sideblockage)is
detected.
ItdependsontheDiagOutOption
setting.
Off:Continuetooperateandoutput.
Burnout:OutputsAOupperlimitorAO
lower limit.
Fallback:OutputsDiagOutFixedVal.
Checkprocesscondition.
AL.89
H BLK
High-pressure-sideblockageis
detected.
AL.89
L BLK
Low-pressure-sideblockageis
detected.
AL.89
H LRG
Pressureuctuationamplitudeofhigh-
pressure side is large.
AL.89
L LRG
Pressureuctuationamplitudeoflow-
pressure side is large.
AL.89
A BLK
ABlocking(single-sideblockage)is
detected.
AL. 90 SIM UnderSimulationModeforow. Simulate input output. CheckSimulationMode.
AL. 91 F. SIM Under Simulation Mode for device
variables.
OutputthesettingvalueofSimulate-
Value.
CheckSimulationMode.
AL. 91 P. SIM
AL.91 SP. SIM
AL. 91
ET. SIM
AL. 91
TF. SIM
AL. 91
PCT. SIM
AL. 91
AO. SIM