Display dark/No function | VACON® 20

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VACON® 20Display 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.

Potensiell løsning funnet

Check the input power source

Test:
Check supply voltages and fuses.

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