SEM Spindle Motor

davemusicmann · Wed 23 Mar , 2016 13:04 pm

I am having difficulty find information on a SEM type 30X2-44L spindle motor ( Photo of plate enclosed) can anyone help with information on identifying the wires coming out of the motor.
I have contacted SEM themselves who claim to had destroyed all information on obsolete motors can anyone please help.
Dave Mann

Martin · Wed 23 Mar , 2016 13:08 pm

You Should have 6 wires.

2 x Armature
2 x Tacho
2 x Thermal trip

davemusicmann · Wed 23 Mar , 2016 17:34 pm

Thanks very much.
I know the armature wires which seem to have an earth wire,
but how can I identify the others?

Martin · Thu 24 Mar , 2016 10:33 am

The thermal wires should be a dead short & the tacho should give you a feedback of 9.5 volts DC per 1000rpm so if you put a meter on it & spin it manually you should see a change in the voltage.

davemusicmann · Fri 25 Mar , 2016 11:14 am

Thanks Martin that is perfect, I'll be able to sort this out now.
Thanks again and happy Easter.
Dave.

Iron-Man · Sat 26 Mar , 2016 20:28 pm

davemusicmann wrote:I am having difficulty find information on a SEM type 30X2-44L spindle motor ( Photo of plate enclosed) can anyone help with information on identifying the wires coming out of the motor.
I have contacted SEM themselves who claim to had destroyed all information on obsolete motors can anyone please help.
Dave Mann

Dave I have this manual but it does not have a lot of information.

It may help,

Iron-Man

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