Synchronous Motor 220v 10rpm CCW

[selldoor]

Hi I am looking to replace a small motor in an electric fire that drives the flame effect roller. Model is a 42TYJ ( Nothing else) but I cant find an exact replacement.
I am currently looking at various similar ones from China Including this one
http://www.ebay.co.uk/itm/CCW-CW-Dir...item1c35b1df96

Problem I have with a lot of them is that whilst main specs are ok they are described in Direction as being CW/CCW and I was wondering if anyone knows what this means. ( I know it means clockwise/counter clockwise.)
Does this mean that it just sets off in whatever direction it feels like it or is there some way of controlling that. I dont think there is anything on the fire it seems to power direct from the mains in - not via any boards.
I tried emailing a couple of sellers but no reply. I can see that in a microwave or christmas tree lights it doesnt matter but in a fire I think I has to go anticlockwise so the "flames" go up
Anyone else played with these

[stj]

Re: Synchronous Motor 220v 10rpm CCW

direction is probably random based on the internal position of the parts when power is applied.
i have something very similar in an oscilating fan.

if i keep cutting and applying the power, the direction fluctuates randomly.

[budm]

Re: Synchronous Motor 220v 10rpm CCW

If it is reversible then it should have more than two wires and the cap is also needed.
For example:
https://cdn.badcaps-static.com/pdfs/...518079f3d3.pdf


http://uk.rs-online.com/web/p/ac-geared-motors/2044759/

[stj]

Re: Synchronous Motor 220v 10rpm CCW

mine is 2wire

[selldoor]

Re: Synchronous Motor 220v 10rpm CCW

Thanks chaps - I reckon the cw/ccw ones are random direction. The one I am replacing has only two wires. When I get time I will take an angle grinder to it and see what is inside.
Maybe something inside stops it going one way so it has to go the other. Sounds like a coffee grinder at the moment so dont think its fixable - wont be by the time I get it apart !!

[stj]

Re: Synchronous Motor 220v 10rpm CCW

try to open it carefully, it may just need the gearbox greased.

[multimeter]

Re: Synchronous Motor 220v 10rpm CCW

ive replaced hundreds of these in disco lights,(moon flower ,roboscan,mirror balls,etc,9 times out of ten,the gearbox drys up causing grinding noise,and i use PTFE grease to fix,sync motors usually have 3 wires ,found in sound to light disco lights,that give the reverse "jerky" movement,mirror ball motors have 2 wire for continuous one way direction,normally 5-10RPM,if you cant fix the one you have ,use a microwave oven turntable motor,the same thing .

im currently fixing a 500mw laser effect one,the heat has dried up the motors for the mirrors,riddled with dry joints too.

[desert-rat]

Re: Synchronous Motor 220v 10rpm CCW

As to cw or ccw , it would be my guess that the motor has slectable wiring to make it start cw or ccw . Switch the red and black wires inside the motor , move #5 and #8 , ect.

[selldoor]

Re: Synchronous Motor 220v 10rpm CCW

Just to close this, I eventually got around to opening it up and it did have 3 wires not 2.
Had 2 from the mains but there is something encapsulated which might be relevant to the direction thing as there is then 3 wires into the motor.
I didnt cut into it as I want to wait until I have a replacement.
The bearings have just worn away and cleaning and repacking with grease made it better
than it was but still too noisy. I am going to get one of the CW/CCW motors and try that
even if it means switching on and off a few times to get the direct right.