VLT® Midi Drive FC 280
Intermittent display
The display is either on or off when it is not supposed to.
Try this solution
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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