The Shop > Electronics & IC Programing
Transwave Static Converter gone phttttt
Bluechip:
Hi Troops
The static converter has gone pop on my Myford S7. It appears to have lost a phase. :zap: :scratch: :bang: during the arduous task of tapping a M4 thread in brass.
As the thing appears to date from Nov. 1991, I am not inclined to faff around with it too much.
The output is 415V, or rather was when it was alive. Now have phase to phase volts of 422V / 0V / 411V
[1] Anyone got a schematic of the damn thing ?? If it is just a shagged capacitor I might just give it the benefit of the doubt and refurtigrate it.
[2] Anyone fitted a Newton Tesla VFD to a S7, if so, why are there apparently 2 versions ? ie 1/2 HP & 1 HP ?
The Transwave one I have is 1/2 HP. I see no point in fitting a larger one, but is there a reason why more grunt would be an advantage ?
A much miffed ...
BC
Stilldrillin:
I would love to help you Dave........ :thumbup:
If I could understand what you are saying! :scratch:
Yours, in total electronical ignorance, :zap:
David D
Bluechip:
--- Quote from: Stilldrillin on June 13, 2012, 03:51:30 PM ---I would love to help you Dave........ :thumbup:
If I could understand what you are saying! :scratch:
Yours, in total electronical ignorance, :zap:
David D
--- End quote ---
Ah well ... these things are sent to try us ... anyway ...
Off to Belper Motor Spares tomorrow .. rattle can of 'Norwegian Blue' paint ... :lol:
BC
Stilldrillin:
--- Quote from: Bluechip on June 13, 2012, 04:06:14 PM ---
--- Quote from: Stilldrillin on June 13, 2012, 03:51:30 PM ---I would love to help you Dave........ :thumbup:
If I could understand what you are saying! :scratch:
Yours, in total electronical ignorance, :zap:
David D
--- End quote ---
Ah well ... these things are sent to try us ... anyway ...
Off to Belper Motor Spares tomorrow .. rattle can of 'Norwegian Blue' paint ... :lol:
BC
--- End quote ---
Nice one Dave!
A new coat of paint is always a great improvement..... :D
Good luck with your quest..... :thumbup:
David D
John Rudd:
BC,
Static convertors use caps to create a phantom phase, here's a link to a schematic that should help you...
http://www.bolis.com/gallery/projects2008/balanced_static_phase_converter
As for fitting a vfd to an ML7, I havent done, but have fitted a vfd to my Chester 9*20 but used a Teco FM50...and a 3/4hp motor.Great conversion...Loads of power when the belt isnt slipping :doh:
More recently I bought a batch of IMO iDrive vfds that were faulty...These were customer returns, rated at 1hp, 240 ac in giving 220v ac 3ph out...Excellent little units and easy to program and wire up..I'm trying to talk my friend into converting his ML7.
All now fixed and sold on thebay for £40 each to very happy customers...So I bought some more!
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