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Here, you'll find support for your VLT® AutomationDrive EZ FC 321
VLT® AutomationDrive EZ FC 321
Intermittent display
The display is either on or off when it is not supposed to.
Спробуйте це рішення
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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