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renatoa
05/23/2022 10:46 AM
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Rewire 230V popcorn machine fan & heater
Ploni
Yes, that is what I thought but I was surprised that you didn't use the term "solder."

Here is what I have now:

Connected:

1. red & brown wires connecting the board and the +motor– screws on the controller
2. red & black wires from the +power– screws on the controller to the –V & +V screws on the 24V unit
3. yellow/green ground wire to housing unit screw

Still unconnected:

1. blue & brown wires leading from 24V L/N
2. blue wire previously connected to thermostat
3. white wire previously connected to the board
4. "Power regulatuon" controller
Ploni attached the following image:
1sttest.jpg

Edited by Ploni on 11/25/2021 6:42 AM
 
renatoa
Forgot to attach yesterday the image of the post above #73, that's why you still have some unconnected. Sorry...

Let's hear if we have today some good news Grin
...
renatoa attached the following image:
currentsetup_1.jpg

Edited by renatoa on 11/25/2021 7:22 AM
 
Ploni
Here is what I have now:

Connected:

1. red & black wires from the +power– screws on the controller to the –V & +V screws on the 24V unit
2. red & black wires connecting the +motor– screws on the controller to the board. The red to the hole to the left of the yellow DF board component; the brown to the corner hole to the farthest right of that yellow DF component.
3. yellow/green ground wire to housing unit screw
4. blue & brown wires leading from 24V L/N: blue to the previously connected 2 blue wires; brown to the blue wire connected to the power switch (previously connected to thermostat).

Still unconnected:

1. white wire previously connected to the board
2. "Power regulation" controller
Ploni attached the following image:
aftersolder.jpg
 
renatoa
Looks ok, you can power and report how it blows.

Please notice there is an object in the picture that have to go: the thermostat.
Its wires will go soldered together in the final scheme.
You can leave them as they are now for airflow check, because there is no heat.

Will not proceed further with heat until you report success from airflow, and how much is the speed percent required to move (barely) the intended load, 75 grams or whatever you want.
 
Ploni
Popcorn unit plugged in.
Switch on.
24V unit on.
Speed controller on; controls respond up & down, menu

No fan.

(Is there a discrepancy between images in posts #75 & #77 regarding where to connect the speed controller + & – wires?)
Edited by Ploni on 11/28/2021 10:42 AM
 
renatoa

Quote

Ploni wrote:
No fan.


Noticed in your last post picture that red wire to motor is soldered on wrong pad, please check again picture from post #75.
 
Ploni
SUCCESS!

Thank you very much.

What is the purpose of the MENU controls?
 
renatoa
Quoting the product page where you bought:

Quote

1. Soft start time setting: 000-100, slow start to 100% speed time is adjustable between 0-10 seconds, the default is 1 second.
2. Soft stop time setting: 000-100, slow stop time is adjustable between 0-10 seconds, the default is 1 second.
3. Rotation speed lower limit setting: 000-080, the minimum speed is adjustable between 0-80%, and is less than the maximum speed setting value, the default is 0.
4. Speed limit setting: 000-100, the maximum speed is adjustable between 0-100%, and is greater than the minimum speed setting value, the default is 100%.
5. Acceleration and deceleration value setting: 001 002 005 010 015 020 025 Each time you press the plus and minus key, the speed changes accordingly by 1%, 2%, 5%, 10%, 15%, 20%, 25%.


Or, same things in the attached image, from other source
...
renatoa attached the following image:
ccm6ds-k-new-arrival-wholesale-high-power-12v-80v-dc-30a-led-digital-display-pwm-hhojpeg_q50.jpeg

Edited by renatoa on 11/29/2021 2:24 AM
 
Ploni
Okay. Thanks.

If you can, please, I'll need some instruction later on on how to use/set this menu.

Now to connect the heat controller?
Edited by Ploni on 11/29/2021 5:25 AM
 
renatoa
Let everything as is, the defaults are ok.

Before he heater, did you managed to move some greens ?
What setting for your intended batch ?

Is the fan setting preserved when you cycle the power on-off ?
or you have to press start on controller every time when power on ?
Edited by renatoa on 11/29/2021 7:40 AM
 
Ploni
I figured out that I need 24 grams of roasted beans every day, six days a week.

I'd prefer to roast just once a week.

So . . . 24 × 6 = 144 grams per roasting session.

How much is that in greens?

Possible or will I have to roast twice weekly?
 
Ploni

Quote

renatoa wrote:

Is the fan setting preserved when you cycle the power on-off ?
or you have to press start on controller every time when power on ?


Yes, it is preserved.
 
renatoa
Average roast loss is 14% for omni-roasts (medium), 16% for espresso

This make about 25 grams loss for 144, thus 169 greens
You need a powerful SR800 machine for this load, with a popper you roast twice, 85 grams per roast is manageable for a popper.
 
Ploni

Quote

renatoa wrote:

how much is the speed percent required to move (barely) the intended load, 75 grams or whatever you want.


I don't see much movement (86 grams) even at 100%.
 
renatoa
Hmmm... a video would be helpful ...

I really hope you aren't so unlucky to start modding one of those weak poppers, rated for 30 grams only...
Can you weigh the popper cup, filled with green coffee ?
Mine take 48 grams, filled to the level, no tip.
 
Ploni
<Hmmm... a video would be helpful ...>
HOW DO I POST A VIDEO . . . ONLY ON YOUTUBE?

<hope you aren't so unlucky to start modding one of those weak poppers, rated for 30 grams only... >
1. Should't my popper replicate the others that you referenced as havingthe same structure & wiring?
2. What is the definition and the cause of a "weak" popper?
3. Can a "weak" popper be "strengthened" to blow a larger quantity of greens?
4. What means "unlucky"? Did I lose in the buy-a-popper lottery?

<Can you weigh the popper cup, filled with green coffee ?>
I only have 116 grams of green beans; can't fill the cup.
Edited by Ploni on 11/30/2021 4:20 AM
 
renatoa
Here there are some models that are rated as "30 grams" machines, signaled with a adhesive sticker on the cartoon box. The others are 60 by default. They looks identical, so without that sticker yes, is a lottery, indeed...

Never bought such model, so I don't know if it can be upgraded. Or what make it weak... could be returned units, unable to turn the standard popcorn load, who knows...

By "the cup" I understand the upper part in the attached image, in green ellipse.
Never seen such large cup, to fit more than 100 grams...

PS: netiquette state that writing with caps means crying.
No need to cry, we hear you... I am angry too Grin
...
renatoa attached the following image:
ha4991fa62bd5417b998ce6bb6f1516ccf.jpg
 
Ploni
Please excuse me. I didn't mean to "cry." I just wanted to differentiate between the quoted text and my questions.

Am I suppose to test the popper's blowing power by putting the greens in the metal cup or in the plastic cup?
 
renatoa
The plastic cup weighing is just to compare with mine.
Popper blowing should be done with beans in roast chamber, of course...
If 85 grams aren't moved at all, try lower loads until they are just "bubbling".
I would start with 60 grams, see if any move, then add more ... 5 grams, a tea spoon... and so on.
 
Ploni
A minimum of 63 grams is required to cover the vent openings in the
roast chamber.

Anything less does not move.

Even with 63 grams there's little movement.

Less with greater quantities.
Edited by Ploni on 11/30/2021 6:35 AM
 
renatoa
On my wife un-modded popper 63 grams are covering completely the openings, about 3-4 mm above, and are turning round, with no glitch.
80 grams are barely moving, but are moving, probably 30 seconds of drying will make them dancing.

Less beans, as a single layer on the bottom, some 10 grams probably, are instantly ejected out of can by the airflow.


Want to proceed further with the heating circuit ?
 
Ploni
Yes. Let's try to progress.

In the meantime I'm thinking to ask if there is another 230V popper that you can recommend to buy and modify?

Or perhaps another roaster build project that utilizes the electronic components that I have already?

(I would prefer a more robust roasting capability.)

What is the feasibility of doing away with this popper and adding my own fan and heating units?
Edited by Ploni on 12/01/2021 7:24 AM
 
zamunda
Hello,

Quote

Ploni wrote:

In the meantime I'm thinking to ask if there is another 230V popper that you can recommend to buy and modify?



I have good experiences with this model:
https://www.amazon.co.uk/Princess-Silver-Popcorn-Maker-Delux/dp/B000AOHTV4

Buy them second-hand for 5-10 Euros, has a 24V fan, run it with a 24V/4Amp laptop charger, can move 100-125 grs of beans.
Modification steps are the same as Renatoa explained...

Regards
########################
### A lot can happen over coffee ###
########################
 
Ploni
Thank you, zamunda!

I'll see if I can find this model here in Israel (amazon says it's unavailable).

Do you know what is the wattage?
Edited by Ploni on 12/01/2021 7:43 AM
 
zamunda

Quote

Ploni wrote:

Do you know what is the wattage?


1200Watt.

Here you can see a picture of the modded popper:
https://raw.githubusercontent.com/zamunda-dev/zamundaroaster/main/images/fff.jpg

Regards
Edited by zamunda on 12/01/2021 8:10 AM
########################
### A lot can happen over coffee ###
########################
 
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