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Old 03-03-2019, 09:24 AM
threepiece threepiece is offline
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Default Electric Motor Accessory, What is It?

I bought this unit from the scrap yard recently. Other than the wires being cut I see no sign of damage. I suspect it came from a testing facility, it looks as it wasn't used much.

I removed the motor from the speed reducer to see if there was any mechanical interference, there was none. The motor shaft doesn't turn. It moves an almost imperceptible amount and I can feel a very slight impact when holding the object on the other end of the shaft.

I would like to make this unit useful to me. I simply want a power unit with no bells and whistles. Does anyone know how I can get this motor to run?
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Old 03-03-2019, 09:26 AM
threepiece threepiece is offline
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Object on the end of the shaft.
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Old 03-03-2019, 09:28 AM
threepiece threepiece is offline
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Motor data plate
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Old 03-03-2019, 09:59 AM
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milomilo milomilo is offline
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Seems to be a gear reduction motor. May have planetary gears in the motor also. Just a guess. Wire it up and plug it in and you will find out if my guess is correct.
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Old 03-03-2019, 10:18 AM
theweldor theweldor is offline
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On that data plate it says brake voltage 480 V.
Is that a brake on the end of the motor shaft or an encoder?
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Old 03-03-2019, 10:48 AM
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If it won't turn it is a brake issue or a bearing issue.
I would take the box apart or off the end of the motor and check out the motor, if it is good electrically and runs, great.
Do you need a brake in your application?
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Old 03-03-2019, 10:48 AM
threepiece threepiece is offline
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Quote:
Originally Posted by milomilo View Post
Seems to be a gear reduction motor. May have planetary gears in the motor also. Just a guess. Wire it up and plug it in and you will find out if my guess is correct.
Connecting it to power was the first thing I did. It drew a bunch of current and growled at me.

There doesn't appear to be enough room for a gear set. The mounting flange seems too close to the cooling fins. There is however space on the opposite end for something unusual. Perhaps it is brake.
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  #8  
Old 03-03-2019, 11:21 AM
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Must be a brake. Expect the brake is released when you power up???? Maybe you can just remove the brake????
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Old 03-03-2019, 11:21 AM
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I just had a box like this apart recently.

It has a brake, it is under the fan shroud, Here is the information for wiring the brake.

In the lead box cover is the part that connects the brake. Should be 5 or 6 screws for connectors. You may be able to connect for 120 volt single phase, if so just study the connection diagram for the brake and hook up correct voltage.

The motor is separate from the brake so wire the motor for the voltage you have that is 3 phase.

There should be a separate tag for the gearbox on it, get that number and you can see what gearbox you have and the ratio.

That brake is on when not powered so your motor will not start.

Does the little can hanging off the end have a tag? it looks like a hall effects or tag generator for speed reference going to a drive.

Scott
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Old 03-03-2019, 11:23 AM
4x4ford 4x4ford is offline
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Default Electric Motor Accessory, What is It?

http://productid.sew-eurodrive.com/default.aspx?lang=en this is the company info I could find on the motor


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