Help with Electric Motor

[Mr Ron]

Hi,
I'm in the UK and need some help & pointers on a motor replacement.
I have my mother-in-laws roller shutter garage door in bits as the control
board burnt.
I've made a remote control / relay unit but am unsure if the original motor
is working, or what to replace it with.

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes. There was a capacitor on the
board. Does this make it a DC motor or universal ??

What would be a good way to drive a motor from a 240V AC supply that would
allow it to be reversed.

Any good websites to aid picking a motor type ? etc

TIA
Ron

--

MrRonMan@googlemail.com

 

[Jamie]

Mr Ron wrote:

Hi,
I'm in the UK and need some help & pointers on a motor replacement.
I have my mother-in-laws roller shutter garage door in bits as the control
board burnt.
I've made a remote control / relay unit but am unsure if the original motor
is working, or what to replace it with.

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes. There was a capacitor on the
board. Does this make it a DC motor or universal ??

What would be a good way to drive a motor from a 240V AC supply that would
allow it to be reversed.

Any good websites to aid picking a motor type ? etc

TIA
Ron

sounds like a DC motor to me!

must be a Diode or bridge rectifier somewhere!.


http://webpages.charter.net/jamie_5"

 

[Phil Allison]

"Mr Ron"

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes.

** How do you know it is 240 volt??

Does it have only two terminals ?

Does it reverse its rotation ?

Is it magnetic?



...... Phil

 

[Mr Ron]

In article <6u9u58Feftg9U1@mid.individual.net>,
Phil Allison <philallison@tpg.com.au> wrote:

"Mr Ron"

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes.

** How do you know it is 240 volt??
Nos markewd on side

624103 240V CC CLF 49921 MPC-1-5174
Unit it also powered by 240V supply.

Does it have only two terminals ?
Yes with 2 small smoothing caps grounding to its body.

Does it reverse its rotation ?
Yes to drive roller up and down.

Is it magnetic?
Ah, No, doesn't appear to be.

TIA

--

MrRonMan@googlemail.com

 

[Phil Allison]

"Mr Ron"
Phil Allison

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes.


** How do you know it is 240 volt??
Nos markewd on side
624103 240V CC CLF 49921 MPC-1-5174
Unit it also powered by 240V supply.

Does it have only two terminals ?
Yes with 2 small smoothing caps grounding to its body.

Does it reverse its rotation ?
Yes to drive roller up and down.

Is it magnetic?
Ah, No, doesn't appear to be.

** Can you see the commutator ?

Approximately how many segments are there?

This will synch it in relation to voltage.



....... Phil

 

[Phil Allison]

"Phil Allison"

This will synch it in relation to voltage.

** Fooled the spelling check - again.

How about " cinch " ?




...... Phil

 

[Terminal Crazy]

In article <6uah0gFeeqg5U1@mid.individual.net>,
Phil Allison <philallison@tpg.com.au> wrote:

** Can you see the commutator ?
Yes
Approximately how many segments are there?
23

Ta

--
Terminal_Crazy

Mitch - 1995 Z28 LT1 M6 terminal_crazy@sand-hill.freeserve.co.uk
Lancashire England http://www.sand-hill.freeserve.co.uk/terminal_crazy/

 

[Phil Allison]

"Terminal Crazy"

Phil Allison

** Can you see the commutator ?
Yes
Approximately how many segments are there?
23

** OK - taking all your replies together, you have a very small, 240
volt AC brush motor - same type used in hand held power tools, kitchen
appliances etc.

But one of your replies does NOT fit - ie that it reverses direction of
rotation.

To make such a motor reverse direction requires internal connections to be
reversed and ideally ( to get the same torque) the brushes to be re-oriented
in relation to the commutator segments.

In any case, the motor is a specially built unit to go with the garage door.

You may find a similar size motor inside a small hair dryer - but be
careful cos many of them use low voltage DC motors operating from a tap on
the air heating coils.



..... Phil

 

[Ross Herbert]

On Wed, 28 Jan 2009 06:37:36 +0000 (GMT), Mr Ron
<MrRonMan@sand-hill.freeserve.co.uk> wrote:

:In article <6u9u58Feftg9U1@mid.individual.net>,
: Phil Allison <philallison@tpg.com.au> wrote:
:> "Mr Ron"
:
:> > The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
:> > It has terminals marked + - and brushes.
:
:
:> ** How do you know it is 240 volt??

:Nos marked on side
: 624103 240V CC CLF 49921 MPC-1-5174
:Unit it also powered by 240V supply.


With this information we now know the manufacturer. Why not get in contact with
them.

http://www.mpcproducts.com/components_motors.asp

 

[Phil Allison]

"Mr Ron"

Is it magnetic?
Ah, No, doesn't appear to be.

** Are you 100 % SURE about that ???

Try placing it near a compass or a CRT screen.




...... Phil

 

[Jasen Betts]

On 2009-01-27, Mr Ron <MrRonMan@sand-hill.freeserve.co.uk> wrote:

Hi,
I'm in the UK and need some help & pointers on a motor replacement.
I have my mother-in-laws roller shutter garage door in bits as the control
board burnt.
I've made a remote control / relay unit but am unsure if the original motor
is working, or what to replace it with.

The original motor is 240V. 2.5 Inch Dia & 3Inch Long.
It has terminals marked + - and brushes. There was a capacitor on the
board. Does this make it a DC motor or universal ??

if it has only 2 terminals and is reversible it's a DC motor.

What would be a good way to drive a motor from a 240V AC supply that would
allow it to be reversed.

a bridge rectirier and an centre-off DPDT momentary switch.

Any good websites to aid picking a motor type ? etc

look for a boilerplate or makers mark on the motor.