Instruction Manual

Fault T racing
8FaultTracing
This section includes different fault scenarios and steps to follow to trace the fault.
TheEPCTA100AMisnotworkingproperly,andthe
powerLEDisoff
1.
Isthepowervoltagecorrect?
2.
Does the power supply deliver enough current?
3.
Check the fuse.
4.
Check the power card.
5.
Is the power card correctly mounted?
TheEPCTA100AMisnotcommunicating
1.
Check the communication cable between the units.
2.
Check the communication ports on the CPU board.
TheEPCTA100AMisworkingbutthebacklightisoff
1.
Check the backlight dimming.
2.
Check that the backlight is connected to the power card.
3.
Replace the backlight according to the Replacing the Backlight section.
4.
Check the DC/AC on the power card.
TheEPCTA100AMisnotworking,thebacklightisoff
butthepowerLEDison
1.
Check the backlight dimming.
2.
Check the CPU board for burned components.
3.
Download new firmware to the Panel PC.
TheEPCTA100AMdoesnotincludethelatest
software
1.
Follow the instructions in section Update or Customize Software.
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