Franklin Q-link - Chapter 9 - TROUBLESHOOTING AND MAINTENANCE; 9.1 Fault Remedy

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CHAPTER 9 – TROUBLESHOOTING AND MAINTENANCE
CHAPTER 9 - TROUBLESHOOTING AND MAINTENANCE
ThefollowingtroubleshootinginformationisalsoavailableviatheQ‐Linkmobileapp.Whenafault
occurs,themobileappwillofferthesamepotentialremediesseenbelowforthecorrespondingfaultsin
section9.1.
9.1 Fault Remedy
Fault Cause Remedy
MotorOverload(C) Amotoroverloadfault
occurswhentheoverload
seesmorethantheadjusted
percentageoftheFLA
setting.Thisfollowsthe
industry‐standardoverload
tripclasscurve,adjustablein
PROTECTION‐07&08.
 CheckthatyourFLAsetti ngin
PRIMARY‐04matchesthemotor
nameplate
 Forsubmersiblepumps,checkif
thereisasandinth
ewater.
 Checkmotorshaftspinsfreely
 Forhighinertialoadssethigher
accelerationtime
MotorOverCurrent
(C)
Amotorovercurrentfault
occurswhentheoverload
seesmorethantheuser‐
definedpercentageofthe
FLAsetting,adjustablein
PROTECTION‐12.Thisfault 
willtripafterashortdelay,
adjustableinPROTECTION‐
13.
 CheckthatyourACCtimeishigh
enoughtoallowforpropermotor
ramp‐up
 Checktha
tyourFLAsettingin
PRIMARY‐04matchesthemotor
nameplate
 Verifymotorwindingconnectionsin
junctionboxaccording
manufacturerdrawing.
‐VFDOverCurrent(C) AVFDovercurrentfault
occurswhentheoverload
seesmorethan110%ofthe
VFD’scurrentrating.Thisis
aninstantaneousfault.
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 CheckthatyourACCtimeishigh
enoughtoallowforpropermotor
ramp‐up
 CheckthatyourVFDissized
correctlytothemotorload
 Forsubmersi
blepumps,checkthat
yourmotormaxampsdonot
exceedtheVFD’scurrentrating.
 Checkforanobstructionatthe
motor
VFDOverHeat(C) AVFDoverheatfaultoccurs
whenVFD’sinternalheatsink
temperaturelimitis
exceeded.Thisisan
instantaneousfault.
 CheckthattheVFDfanventsare
freeofdirtanddebris
 Checkthattheenclosureis
providingadequatecoolingairflow
totheVFD
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