
Fault Tracing
4FaultTracing
The following fault tracing list can b e used to identify faults in the operator panel.
Problem Solution
1. Isthepowervoltagecorrect?
2. Doesth epowersup plydeliv erenoughcurre nt ?
Theoperatorpanelisnot
workingproperly.
Power LED is off.
3. Checkthefuse.
1. Checkthecommunicationcablebetweentheunits.
2. Checkthattheoperatorpanelhasacontroller
driverdownloaded.
3. Checktha tth ecorrectcontrollerdriverisused.
Theoperatorpanelisnot
communicatingwiththe
controller.
4. CheckthecommunicationportsontheCPUboard.
1. Checkthebacklightdimming.Theoperatorpanelis
workingbutthebacklight
isoff.
2. CheckthatthebacklightisconnectedtotheFront
Adapterboard.
1. Checkthebacklightdimming.
2. ChecktheCPUboardforburnedcomponents.
Theoperatorpanelisnot
working,thebacklightis
offbutthepowerLEDis
on.
3. Downloadnewfirmwaretotheo perato rpanel.
1. Checktheversionsincludedwiththeoperator
panel.
2. Makesurethatacopyoftheprojectissavedtothe
computer.
Theoperatorpaneldoes
notincludethelatest
firmware.
3. DownloadanupdatedimagewiththeImageLoader
andfollowthedirections.
1. Re-calibratethetouchscreen.
2. Checkthattheflexcableiscorrectlyfitted.
Thetouchscreenis
malfunctioningorisnot
respondingatall.
3. ReplacetheFrontoftheoperatorpanel.
1. Makesurethedisplay cabl eiscorrectly fitted.
2. Makesurethedisplaycableisnotfoldedordamaged
inanyway.
Linesindisplayhaswrong
colororthedisplaypicture
isshifted.
3. Replacethedisplaycable
Beijer Electronics, MAEN021
18
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