Beijer-electronics EPC TA70 AM EN Manuale Utente Scaricare il pdf (Pagina 31)

Fault Tracing

8FaultTracing

This section includes different fault scenarios and steps to follow to trace the fault.

TheEPCTA70AMisnotworkingproperly,andthe

powerLEDisoff

Isthepowervoltagecorrect?

Does the power supply deliver enough current?

Check the fuse.

Check the power card.

Is the power card correctly mounted?

TheEPCTA70AMisnotcommunicating

Check the communication cable between the units.

Check the communication ports on the CPU board.

TheEPCTA70AMisworkingbutthebacklightisoff

Check the backlight dimming.

Check that the backlight is connected to the power card.

Replace the backlight according to the Replacing the Backlight section.

Check the DC/AC on the power card.

TheEPCTA70AMisnotworking,thebacklightisoff

butthepowerLEDison

Check the backlight dimming.

Check the CPU board for burned components.

Download new ﬁrmware to the Panel PC.

TheEPCTA 70AMdoesnotincludethelatestsoftware

Follow the instructions in section Update or Customize Software.

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Beijer-electronics EPC TA70 AM EN Manuale Utente Pagina 31