This is probably an easy question for alot af the people on the list.
I have 3 phase power going to my vfd on my machine. I want to the use that
same power to power all the 120 single phase components. (the dc power supply
for the steppers and varios other motors. ). This way i only need 1
the lights and most outlets here at work are single phase wired off of 3
phase.
On Thu, Nov 10, 2011 at 9:50 PM, Brian May bri...@diezorlich.com wrote:
This is probably an easy question for alot af the people on the list.
I have 3 phase power going to my vfd on my machine. I want to the use
Yes everything at our shop is wired off 3 phase. But our box has a nuetral. So
it goes from leg to nuetral. However my machine only has 4 lines - the 3 legs
of power and an earth ground. So i guess my question is do i need the nuetral?
Sent from my iPod
On Nov 10, 2011, at 8:59 PM, Eric Keller
On 11/10/2011 06:50 PM, Brian May wrote:
This is probably an easy question for alot af the people on the
list.
I have 3 phase power going to my vfd on my machine. I want to the
use that same power to power all the 120 single phase components.
(the dc power supply for the steppers and varios
On 11/10/2011 08:50 PM, Brian May wrote:
This is probably an easy question for alot af the people on the list.
I have 3 phase power going to my vfd on my machine. I want to the use that
same power to power all the 120 single phase components. (the dc power supply
for the steppers and
Ok that makes sense.
Just out of curiosity, How do other machines do it. Our other cnc machines only
have the 3 lines and earth ground running into them...
Sent from my iPod
On Nov 10, 2011, at 9:01 PM, Brian Mihulka bmihu...@hulkster.net wrote:
On 11/10/2011 08:50 PM, Brian May wrote:
You need a transformer to step it down,that is how most machines do it.
this will be a cleaner set up rather than 3ph and a 1ph line coming in.
From: Brian May bri...@diezorlich.com
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent:
Usually bigger 3 phase machines being fed with 480 volts or so will only
have the 3 phases run to the machine without a neutral wire.
The reason being that Line to Neutral on a 480 volt system is 277 volts
and that is not very useful for anything other than lighting.
To get 120 VAC, two of the
