Monarch 10EE and VFD conversion

Jon Anderson · 2010-11-03T16:09:42+00:00

Found a 10EE in the SF Bay Area on Craigslist, model, says ready for VFD conversion.What all is involved in doing this conversion and what is it likely to cost me assuming I don't have lots of time to shop for bargains on any needed components?Will the 10EE cut metric threads native, or does it require transposing gears? If the latter, how hard is it to locate the required parts?Anyone here see this lathe in person and know anything about it's overall condition? The trip down would burn a day for me and I've got lots of work. Looking for an engine or toolroom lathe and there's a few on CL that look promising. Might come down to what comes with the most tooling ready to run. I've always wanted an HLVH, but a 10EE is something I think I could live with... Jon

Nov 03, 2010 62 Replies

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Dave H. 15 years ago

Not to hijack the thread, but does anyone have or know where I can get a service / repair manual or schematic for the ABB ACS-301-4P9-3 VFD? I have it up and working (spins the drive, speed control and fwd/rev work) but DHL managed to drop it (from quite a height) in transit and there's no DC to the control/programming panel so I can't get in and set the various motor and braking parameters... The control board (not the programming panel, the top board in the main unit) is all surface-mount and multi-layer, and is going to be a sod to trace, although no so hard to add a few repair jumper-wires if I can find what's broken and where.

I've tried ABB's UK distributors, their answer was "we don't keep spares/manuals/schematics for anything that old so buy a new one"!

I'd rather not, as it's oldish and so has been easily hacked to fool it into thinking it has 415V in and thus it can run the Difficult Motor in my Holbrook (England's Monarch?) C13 (415v only, 3-phase, 3 sets of windings for the 3 speeds) and, of course, I'm cheap ;)

Thanks all, Dave H.

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Ignoramus26353 15 years ago

John, then it would seem that a drive like that, in a 10EE monarch, should be more or less perfect for the job? Am I wrong?

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John 15 years ago

Yup, all you need to do is add a tach generator so you have better speed control even though it would work without the tach. All the field generating ckts are in the drive. The most critical is field loss detection. Brush type DC motors are not that maintenance intensive. you check the brushes once in a while and replace when necessary,blow out the carbon, usually with about five years of continuous use. As far as alignment, you only have to set the field current as stamped on the motor and set the crossover at the base speed of the motor as stamped on the motor tag the crossover being when the armature current is at the max and the field current is reduced to further increase the speed of the motor.

John

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