Is it possible to run say five 2hp blowers or pumps from one 10hp VFD?
I read about "Multiple Motors" where the VFD can turn on additional
motors if the "master" is max'd out and the control is calling for more
flow; but I just want all five of the pumps to start & stop together and run
at the same speed. (Five identical tanks.)
I guess I'm just wondering if there is some kind of "feedback" or
"inductance" problem that would prevent all of them from running off of one
drive?
Thanks in advance,
David

On 2010-10-04, David Courtney wrote:
Is it possible to run say five 2hp blowers or pumps from one 10hp VFD?
I read about "Multiple Motors" where the VFD can turn on additional
motors if the "master" is max'd out and the control is calling for more
flow; but I just want all five of the pumps to start & stop together and run
at the same speed. (Five identical tanks.)
I guess I'm just wondering if there is some kind of "feedback" or
"inductance" problem that would prevent all of them from running off of one
drive?

It should work fine. But do not turn them on and off individually.

i

"Ignoramus17745" wrote in message
...
On 2010-10-04, David Courtney wrote:
Is it possible to run say five 2hp blowers or pumps from one 10hp
VFD?
I read about "Multiple Motors" where the VFD can turn on additional
motors if the "master" is max'd out and the control is calling for more
flow; but I just want all five of the pumps to start & stop together and
run
at the same speed. (Five identical tanks.)
I guess I'm just wondering if there is some kind of "feedback" or
"inductance" problem that would prevent all of them from running off of
one
drive?

It should work fine. But do not turn them on and off individually.

i

Thanks.
I wouldn't shut them down or turn them on individually, except if a pump
motor failed and tripped it's own breaker.