Honeywell XNX - Page 120

XNX Universal Transmitter
Section 5 - Warnings/Faults
118
Fault Description
Appli-
cable
Sensors
Latching / Non-
Latching
Frequency of
Diagnostic
Event History Data Action For Resolution
F159
OptionPartNum-
berMismatch
All Non-latching
Onlyatpowerup
orevery125ms
whennooption
boarddetected
Entireoptionpart#
CheckthatinstalledoptionmatchestheoptionindicatedintheXNXpart
number,checkwiringtoOptima/Excel�
F160
HardwareDiagnos-
ticFailure
ECC,mV Non-latching Mainloopx2
Gain1highbyte,
Gain2lowbyte
ReplacedefectiveECcartridgeormVpersonalityboard�
F161
mAInputIndicates
Fault
Optima,
Excel
Non-latching 1second InputmA
IndicatesmAinputfromOptima/Excelisbelow1mA,indicatingafaultin
thesensor�Anyotherfaultwillalsotriggerthisfault,socheckforaddi-
tionalfaultsineventhistorytodeterminespecicissue�Ifnootherfaults
indicated,checkwiringbetweenOptima/ExcelandXNX�Alsocheckthat
switchesS3andS4aresetcorrectly�
F162
Errorreloading
safetycriticalRAM
block
All Non-latching 2seconds Note3 ContactHoneywellAnalytics’ServiceDepartment�
F163
Interruptintegrity
fault
All Non-latching Mainloop Note3 XNXwillresetifmorethan600,000successiveerrorsoccur�
F164 mVSensorfailure mV Latching 1second
mVbridgevoltageor
bridgecurrentthat
causedfault
Indicatesthatthesensorwaschangedorisbad�Ifthefaultwillnotclear,
replacethesensor�