The Shop > Electronics & IC Programing

Soft Start for Warco VMC motor

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JerryNotts:
Thanks John,

All along I had felt that VFD might be the way to go, but as I have aged I find myself les able to spend money?
Looks like I should open discussions with Transwave.
What supplier did you use?

Can you advise what current your circuit needs please?

Will I am a mere chemist  the idea of experimenting with  dimmer switches etc is beyond my pay grade. In any case the Mill full load current is around 8 amps (1.25 HP) would a dimmer switch carry that current for the type of running a mill would undertake?

Jerry

RussellT:
How is the motor mounted?  Is it possible to arrange a mechanical soft start? I'm thinking of something like a motor that's free to move but taking up the torque reaction with a spring.

Russell

John Rudd:
Russell,
The motor is mounted on a vertically hinged plate that pivots to set the primary belt tension.
It is conceivable that this could be the springboard for a mechanical soft start.

Jerry,
I used Engineers  mate, a supplier on ebay but called them directly for a better deal.
I got a 1.1k motor from them and an Invertek inverter rated at 1.5 kw, cost was circa £260 inc delivery.
I avoided going to companies like Transwave, simply because they are overly expensive. ( shout me down anyone...I dont care...)
I previously converted my Chester Eagle 30 using the same motor and a cheaper inverter from ebay.
My large lathe, from SPG tools has had the same treatment as has my Chester 9 x 20 lathe, so conversions of this nature are not alien to me....
The control side of the conversion is straight forward too, but then my techie background does help

shout up if you need any help...

JerryNotts:
Thanks John,
 No doubt I'll be in touch.
I'll look at the e-bay site you mention first.
Jerry

John Rudd:
Here is a suitable motor...

http://www.engineersmate.com/products/4-POLE-MOTORS/P252302

Suitable inverter.....

http://www.engineersmate.com/products/IP20-INVERTERS/P252107

I suggest you call them and ask for a combined price, hopefully you may get a discount... :)

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