Can someone please elaborate on why DC drives would be particular about their power input?
Ie, why would they complain about input from a rotary phase converter?
And would 3ph drives take 1ph input like many VFDs?
Ie, why would they complain about input from a rotary phase converter?
And would 3ph drives take 1ph input like many VFDs?
It will be three-phase-only and "digitally controlled"... same PLA guts as they use for VFD with the hundreds of numbers to poke in with tiny screen and keypad instead of an ignorant screwdriver using Analog trimpots as "NVRAM".
"Defunct" translation: With all the USA regulatory and filing burdens, their profit margin was non-existent since even the heavily-taxed Brits are still allowed to sell them at lower retail prices!
Worse for Parker, Eurotherm/Invensys, FORMER owner of Shackelton Systems Development - is now part of massive Groupe Schneider - and also selling differently-arranged versions, too.
And they have added features!
See UK & European listings.
They haven't yet outsourced ALL their brains to China ... as we seem to have done.
Or to Japan, in KB-Penta, Saftronics, or Control Techniques' cases - all owned by Nidec.
As-of last week, anyway.
Can't keep track of the players without a race program.. or maybe even radioisotope tracers and DNA tests?
Sabina is still independent , 52 years and counting.
Sabina - Motors, Controls, Custom Systems, Service & Repair
Even has third-party support, 30-plus years.. and counting.
Sabina DC Drive Repair and Overview - EMA Inc.
The 3-Phase-only drive they supplied 1969-70 onward still ships, brand-new. At up to 1,000 HP or so. And in "4Q" as well as "1Q".
Model 8800 is 4 Quad regenerative DC Drive
If you have the coin for it.
And proper 3-Phase power - or a really good imitation, thereof.
I still think the 514C-32 SSD @ around USD $ 1,100, new, ex UK, can make chips "enough" off 50A or so single-phase.
