"Bob La Londe" wrote in message
...
"PrecisionmachinisT" wrote in message
...

"Bob La Londe" wrote in message
...


"Ned Simmons" wrote in message
...
On Fri, 6 Jan 2012 19:45:01 -0700, "Bob La Londe"
wrote:

wrote in message
...
On Jan 6, 6:59 pm, "Bob La Londe" wrote:
I have a Leland 6273 3 phase 240 V motor I am trying to figure out
how to
hook up.

It has 6 black wires coming out of the motor.


Is there any practical way using a meter to determine which wires to
pair
up
to connect to 3 connections on the VFD?

I would use the ohm meter function first to get a better idea of what
you have. I suspect you have three windings with both ends of each
winding brought out. That would allow you to connect it as either
star
or delta.


Dan

Well, a quick check doesn't seem to be the case. Get about 20 ohms
between
any two of three wires and 2 ohms between any 2 of the other three.

A start winding and a run winding? Which one is which?
I would guess the lower impedance (higher load) would be the run
winding.

Will putting a start timer relay on the start winding do anything funny
to
the VFD when it disconnects if that's the case?



It sounds like a 2 speed motor -- 2 sets of windings. 96 RPM @ 6 Hz is
a 4 pole winding; 3680 RPM @ 130 Hz is 2 poles.


My mistake. It say 3/130 hz, not 6/130.

The Data Plate Reads:

Leland Electrosystems Inc
Model 6273
Serial TX43042
FR 215
HP 5
HZ 3/130
C Temp rise Cont.
NO.71
RPM 96-3680
Class H insulation


It looks like an inverter-rated motor...

96 dvide by 3=32

32 x 130= 4160 and if you then subtract 10% slip you get 3744 which is
right there in the ballpark....

Not sure what the other three wires are for--feedback perhaps or could be
there for a ventilating fan I suppose.

Which leaves the odd pair--could be a per/rev feedback, hall sensor or
magntic prox or for a fan or perhaps some kind thermal safety...



The odd pair of wires is probably either for a fan or for a thermister

So how do I decide which set to hook up? Just do it and see what speeds I
get at what frequency?


First you'd need to figure out which set of wires...

--sorry but theres way for me to tell without actually looking at it's
insides.