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-   -   How to connect weird AC 3 phase motor with a electric break _Req_motor.zip 569 (1/1) (https://www.diybanter.com/electronic-schematics/242292-how-connect-weird-ac-3-phase-motor-electric-break-_req_motor-zip-569-1-1-a.html)

jo April 6th 08 05:09 PM
How to connect weird AC 3 phase motor with a electric break _Req_motor.zip 569 (1/1)
 
1 Attachment(s)

bozo April 7th 08 04:28 AM
How to connect weird AC 3 phase motor with a electric break _Req_motor.zip 569 (1/1)
 
(jo) wrote in
news:part1of1.61yt9jepACMcqdApUNvQ@powerpost2000AA .local:


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Attachment decoded: _Req_motor.zip
=yend size=582761 part=1 pcrc32=0ae8cf53


Jo,

I've seen similar setups before...

The motor diagram shows the motor set up as a delta connection...
which is correct for your 220 X 3 situation, although I would verify
that it is indeed actually connected that way.

as for the brake...

The mechanical adjustment on the back allows adjustment for wear.
I would mark the initial setting, so it would possibe to return the knob
to it.

For now, I would set this adjustment so that the rotor turns free with
no power on.
Then I would apply power and see if the motor runs.

In looking at the diagram, I only see 1 wire connected to the brake
circuit.
It may be that the x and Y windings are magnetically coupled to the main
motor windings so as to generate or pickup enough voltage to operate the
brake. (sort of like a transformer)

With the motor running, I would take an ac volt meter, and see if there
is not an ac voltage accross both the x and the Y coils. If there is,
then this is the voltage that is supposed to operate the brake.

Assuming that is the case, I would then adjust the brake, by trial and
error, progressively tightening it in in steps, until it is applied when
the motor is off, but not dragging when the motor is on.

hope this helps

courtesy,

Da Bozo



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