Bill Turner wrote:
>I just received my nice new EBM PABST blower from Newark, very fast
>shipping by the way, but there is a problem.
>
>This is really dumb. How do you hook it up? Don't laugh till you hear
>the details. There is no sheet with it, nothing on the EBM PABST web
>site and a google search for European motor color code found nothing.
>Several dealers have links to the factory data sheet, but that shows
>only dimensions, not hookup.
>
Another place to look for the EBM Papst data sheet is
http://.uk.farnell.com (an affiliate of Newark).
Oh... see what you mean... no electrical data and no performance data
either. Completely useless.
>Weird.
>
>So maybe someone here knows. There are three wires, none of which is
>connected to ground (the frame). Are two for the AC and one for a
>starting capacitor? Not a clue anywhere on the unit.
>
>Here are the resistance readings:
>
>BLUE TO BROWN = 70.8 ohms
>BLACK TO BROWN = 211.8 ohms
>BLACK TO BLUE = 41.3 ohms
>
Those don't seem to add up correctly. Is there a 100-ohm typo somewhere?
>So what goes where? AC between blue and brown and capacitor from black
>to one of the others? And of course, what size capacitor?
>
European standard colours for single-phase mains wiring are brown = live
(phase), blue = neutral.
In your blower, it looks like brown-blue is winding 1, and brown-black
is winding 2. The start of winding 2 is internally connected to the
brown wire (some motors bring that connection out on a separate white
wire).
On a very similar blower here, the connections are:
Brown = mains live
Black = mains neutral and capacitor
Blue = capacitor (other side)
The capacitor value could typically be anything from 1-4uF. This blower
has "1 MFD" marked on the label but I'm using 1.5uF with no noticeable
effect. In the UK, suitable mains-rated caps are known as "motor run
capacitors".
I hope that's enough information to get you going, Bill.
--
73 from Ian GM3SEK
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