i am trying to modify this dishwahser pump, so the triac to work with phase shift (if is correct the terminology) am posting the pictures so you may understand better and explain to me olso, how i will make this pump, to spin.











this pump has this circuit old fashion board, that is driving the gate for a t410-610t triac, but the printed board get damage, some lines have been cut off, any way i try to solder the lines and e.tc but it was useless, i try to found some information in internet about this ic, EM2030 90C909 BUT NOTHING IN GOOGLE. so i make the thought to make the triac to work around with out this board.



i read a lot about the triac and watch many tutorials but it seams something i do wrong.. what i did is in the picture below.



i have try many ressistor values, for charching the capacitor, i try deferent capacitors.. start from 470ohm up to 220kohm and capacitors from 7nf up to 2.2μf , some times the motor spins for a few rounds but most of time is stand still, and the coils get hot. what i notice with my osciloscope, is that in gate of the triac, i done have the small trigering pulse, (discharching capacitor) but i have a AC wave form, slightly ofset few degress.


the rotor of this pump is a magnet like you can see in the picture above.. my idea how this pump work is, that in the positive cycle the magnets are north/south and in the negative pulse the reverse south/north, if i am correct, i assume the controller of the triac that has been damage, is driving the gate of the triac, in half phase positive gate current, and in the other half negative gate current. so in the first half the current inside the triac flows from mt1 to mt2 and in the other half the current is flows from mt2 to mt2. with a result the coils to have a polarity change, so and there magnetic fields.

UNFORTUNATLY, SOMETHING SERIOUS I AM MISSING, AND THE MOTOR IS NOT SPINNING. CAN YOU HELP ME PLEASE.

 

Does the pump spin when you connect it directly to the mains?

If so then you need a dimmer circuit like this one , I would make it on veroboard or PCB , ..

 

no the pump not spinning if connect directly to the main. is making a noise, and you can watch that's is moving back and forward just a little bit...
if you notice my pictures, i have done this, but is not working properly, something is missing.

 

Then it looks like the coils are wired out of phase , have you put the Orange wire on ??

Measure the resistance of each coil.

 

Then it looks like the coils are wired out of phase , have you put the Orange wire on ??

Measure the resistance of each coil.

i have make a new coils, i thought that some problem was with coils, becouse in the place of the wire was a 5A fuse.. the coils are 13ohms

 

Then it looks like the coils are wired out of phase , have you put the Orange wire on ??

Measure the resistance of each coil.

 

booth coils windings are in some direction, the left coil the one end is going to the AC 240V NEUTRAL. the other end is connect with the yellow wire to the other coil, and then it gos direct to the triac.. the only deference is that the current to the left coil is going one way but it enders the other coils vice versa, i assume this is done, when current flows through the coils, the left coil
is the north pole, and the right coil is the south pole, because the opposite direction current flows through the coils.

 

Yes if the coils are not put in Series the Correct Way, they will Oppose one another and the motor will just Buzz.

Have you rewound these coils?

Was the motor working before you messed it up ?

 

yes it was working, but the electronic board you see in the picture above get damage by it own. i know it will oppose the one another, and i assume thats way they have connect it like this. this is the way how its connect in the picture below.

 

Yes if the coils are not put in Series the Correct Way, they will Oppose one another and the motor will just Buzz.

Have you rewound these coils?

Was the motor working before you messed it up ?

yes i did rewind them and is the same way with the same resistance like was from the factory.

 

Just swap One Coil Only round, to see if it runs, can you measure the Current?