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Lathe Jaguar VXS inverter - remote pendant

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raynerd:
Hoping for some info guys. I'm using a Jaguar VXS inverter to run my lathe motor and the pendant isn't right. The variable speed pot does not change the speed in a linear fashion, from stopped to full speed in a touch, incredibly sensitive to get it to the right speed and then when set at a speed, the speed can often creep up.

Has anyone experience with this inverter and can describe the best way to make a new remote pendant and also suitable settings for the inverter. On my old pc many years back I had manual but I struggled to make head nor tail of it. I need to fully rebuild the pendant as it clearly is t correct either.

Any help appreciated. Photo attached.

angus:
i have some jag/imo manuals at work.... will see if i have one for that.....

David Jupp:
Assuming you have the correct value and type of potentiometer as per the manual (LOG or LIN), I wonder if the problem could be a dodgy connection on one of the 3 wires from the pot to inverter.

For a speed control pot, control mode should be set to voltage - if the inverter has a current control mode (many have both) this is not for use with a pot.

[EDIT - also just thought, an open circuit at one end of the pot track might give similar problems - not sure how likely such damage is though.]

David Jupp:
Manual available at http://www.as-uk.co.uk/downloads/manuals/imo_jag_vxs.pdf

Speed control via pot looks fairly standard - though I note it doesn't suggest type of Pot (LOG/LIN).  Since it's a voltage input, the exact value of the pot should not be too critical - a higher value ought to be safe (will draw less current).

mfletch:
I've made my own its not hard here is some instructions if they load

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