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VLT® AutomationDrive EZ FC 321Intermittent display

VLT® AutomationDrive EZ FC 321

Here, you'll find support for your VLT® AutomationDrive EZ FC 321

Intermittent display

The display is either on or off when it is not supposed to.

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If the display stays lit, the problem is in the control wiring. Check the wiring for shorts or incorrect connections

Test:
To rule out a problem in the control wiring,
disconnect all control wiring by removing the
terminal blocks.

Possible cause/s:
Internal voltage supply fault or SMPS is defective

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