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.

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Check the input power source

Test:
Check supply voltages and fuses.

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