topbanner.gif
Login
Username

Password




Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Shoutbox
You must login to post a message.

10/21/2021 2:41 AM
muckymuck, mckinleyharris and williamjonex welcome cup

10/19/2021 6:22 AM
Welcome tarunk!

10/17/2021 12:40 PM
Ploni and nader fouad, Welcome!

10/15/2021 2:19 AM
merlot85, maycondelpiero and hoeltz, Welcome !

10/14/2021 10:06 AM
Thanks for the addition to the group. Seriously considering building a drum roaster along the lines of oldgrumpus's. Love the design and craftsmanship.

In Memory Of Ginny
Donations

Latest Donations
JackH - 25.00
snwcmpr - 10.00
Anonymous - 2.00
Anonymous - 5.00
Anonymous - 5.00
Users Online
Guests Online: 27

Members Online: 1
zamunda

Total Members: 7,369
Newest Member: williamjonex

View Thread

Who is here? 1 guest(s)
 Print Thread
Ametek Motor -Speed Control / Arduino Control???
renatoa
You make me curious to test if a generic vacuum blower can or not be controlled by a $12 SCR voltage regulator, from Amazon/eBay/China.
Seems so... as you can see from the video I did:

madhatter349

Quote

renatoa wrote:

You make me curious to test if a generic vacuum blower can or not be controlled by a $12 SCR voltage regulator, from Amazon/eBay/China.
Seems so... as you can see from the video I did:



the SCR's I tried had limited scope, with my arduino I am able to run the motor at 6% speed.
renatoa
At 12 my motor stopped. 12... on display, they are unknown units, they surely aren't percents or volts.
For me is enough control range, ymmv.
madhatter349

Quote

renatoa wrote:

At 12 my motor stopped. 12... on display, they are unknown units, they surely aren't percents or volts.
For me is enough control range, ymmv.


I have a feeling these units are hit or miss. I was using one well until I somehow blew some component. My ideal was figuring out how to accurately control the motor with arduino which I did.
koffeegrounds
Get a 25 amp SSR and a DSPR1 From Auber electronics, don't forget the heat sink. This is what i use on my commercial roasters.
renatoa
No need for a heatsink for the motor.
I run 1300 W heaters (6 Amps 230 V) on 25Amp ssr without any heatsink, and it is barely warm, surely under the 60 C skin touch test limit.
Current is what matters for SSR heat dissipation, not power of the heater.
For 110V current is double, could be different a different case, current being double for same power, the heat could be 20-30C degrees more.

Beware to cheap Fotek fake labelled SSRs, the 25 Amps labelled units were found inside fitted with 16 or even 12 Amps triacs. The 40 Amps units with 25 Amps triac. They aren't bad for the price, but you should use them at half of rated current to be safe.
madhatter349

Quote

koffeegrounds wrote:

Get a 25 amp SSR and a DSPR1 From Auber electronics, don't forget the heat sink. This is what i use on my commercial roasters.


I got a 40 amp SSR from Newark, which I presume should be reputable and reliable
https://www.newark.com/multicomp/mc002318/solid-state-relay-40a-4-32vdc/dp/48AC9134
madhatter349

Quote

renatoa wrote:

No need for a heatsink for the motor.
I run 1300 W heaters (6 Amps 230 V) on 25Amp ssr without any heatsink, and it is barely warm, surely under the 60 C skin touch test limit.
Current is what matters for SSR heat dissipation, not power of the heater.
For 110V current is double, could be different a different case, current being double for same power, the heat could be 20-30C degrees more.

Beware to cheap Fotek fake labelled SSRs, the 25 Amps labelled units were found inside fitted with 16 or even 12 Amps triacs. The 40 Amps units with 25 Amps triac. They aren't bad for the price, but you should use them at half of rated current to be safe.


Ya its crazy the Foteks may be fake, I avoided the fotek as well because I couldn't find a random fire SSR from them.....

I bought this https://www.newark.com/multicomp/mc002318/solid-state-relay-40a-4-32vdc/dp/48AC9134
renatoa
All Foteks I used so far are random fire, I don't know any ZC model labelled Fotek.
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
New Fluid bed roaster- Help with how to control it Fluidbed Roaster 5 10/12/2021 1:34 PM
Testing Arduino UNO with bitwisetech / popc and MAX6675 Popcorn Popper roasting 67 10/07/2021 4:32 AM
Is automated Artisan PID control of a drum roaster a "fool's errand"? Drum Roasters 8 08/30/2021 5:47 AM
Roaster Control Wiring Fluidbed Roaster 4 07/22/2021 10:20 AM
Artisan - PID control - setting ROASTING SOFTWARE APPS 3 04/13/2021 5:41 PM
Homeroasters Association Logo, and all Content, Images, and Icons © 2005-2016 Homeroasters Association - Logos are the property of their respective owners.
Powered by PHP-Fusion Copyright © 2021 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX