I decided that I wanted to see the display on my inverter so that I could get a basic idea of the spindle speed.
I removed the front cover from the inverter and found that the display box could be removed. As the photo below shows tha display box is connected by a 10 way ribbon cable.

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I made and fitted a new cable, 10 way flat ribbon ran inside some shielding then covered in heatshrink.


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Cut out the box lid and fitted the display unit.


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Fitted the speed control pot and an emergency stop button and connected everything up.
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Power on and test.
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All seems ok.

Regards

Ian