7 Jun
2013
7 Jun
'13
4:37 p.m.
On 6/7/13 3:16 PM, "Dave McGuire" <mcguire at neurotica.com> wrote:
On 06/07/2013 04:41 PM, Tony Duell wrote:
It's also that the power is distributed to multiple slave drives from the
controller/primary drive cabinet. So all the power for up to (ISTR) five
nine-track vacuum-column drives is coming through one straw. -- Ian
That's serious power -- 10's of kW. What
on earth does it use it all
for?
How can a tape drive take 40A on 3 phases? The motors can't be that big,
surely?
I would guess that it has something to do with needing to start and
stop the spindle motors very quickly.