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VACON® NXSDisplay dark/No function


Display dark/No function

Possible cause/s:

  • Missing input power.

  • No power to the Keypad.

  • Wrong contrast setting.

  • Display (Keypad) is defective.

  • Internal voltage supply fault or SMPS is defective.

Try this solution

Check the input power source

Check supply voltages and fuses.

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