Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Home Brewing Beer > Electric Brewing > eBIAB with PWM wiring

Reply
 
LinkBack Thread Tools
Old 12-02-2013, 01:23 PM   #1
KPSquared
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Location: Wetaskiwin, Alberta
Posts: 304
Liked 14 Times on 12 Posts
Likes Given: 2

Default eBIAB with PWM wiring

Hey guys,

Getting closer and closer to actually building this thing. Most of the components are sitting in a big pile. Pulled some new wiring in the garage and added another 240v outlet. Sold my hottub and ended up with a spa panel that had no purpose. . .handy!

So, my question is. . . I plan to build this in stages. For now I just want to run with the PWM and add a PID later. I like the simplicity of manual control with PWM but I like being able to set temps with the PID.

So, for stage 1, I'd like to have a switch set up for either full power to the element or run through the PWM (as I understand the PWM doesn't do 100% duty cycle)

I'm using bits and pieces of PJs wiring diagram below. There will be no PID for now so whats the easiest way to have a 100% power and PWM switch?

I'm a fairly competent electrical guy but I just want some opinion before I push on.

(I know all this is overkill for a single vessel eBIAB set-up, but I just like tinkering. . .)

__________________
Watershed Brewing Co.
KPSquared is offline
 
Reply With Quote Quick reply to this message
Old 12-02-2013, 01:59 PM   #2
crazyirishman34
HBT_SUPPORTER.png
Feedback Score: 37 reviews
 
crazyirishman34's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Newton, MA
Posts: 1,359
Liked 48 Times on 45 Posts
Likes Given: 81

Default

Honestly I would just go with the PID and skip the fuss.

__________________
www.downtheroadbrewery.com

www.pintley.com Great reviews of craft beer and win prizes at the same time

Down the Road on Facebook
crazyirishman34 is offline
 
Reply With Quote Quick reply to this message
Old 12-02-2013, 02:02 PM   #3
KPSquared
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Location: Wetaskiwin, Alberta
Posts: 304
Liked 14 Times on 12 Posts
Likes Given: 2

Default

cool. . . next time I'll start a thread called, "Do you think I should do this or not" Then your response would be relavant to my question.

__________________
Watershed Brewing Co.
KPSquared is offline
 
Reply With Quote Quick reply to this message
Old 12-02-2013, 02:05 PM   #4
crazyirishman34
HBT_SUPPORTER.png
Feedback Score: 37 reviews
 
crazyirishman34's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Newton, MA
Posts: 1,359
Liked 48 Times on 45 Posts
Likes Given: 81

Default

The problem is you are going to spend $25 on the PWM controller and you won't have stable mash temps at all.

__________________
www.downtheroadbrewery.com

www.pintley.com Great reviews of craft beer and win prizes at the same time

Down the Road on Facebook
crazyirishman34 is offline
 
Reply With Quote Quick reply to this message
Old 12-02-2013, 02:12 PM   #5
KPSquared
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Location: Wetaskiwin, Alberta
Posts: 304
Liked 14 Times on 12 Posts
Likes Given: 2

Default

Wow, just read my response and it was a total dick response. Hard to communicate sarcasm online. . .dang. Apologies!

As far as the PWM goes, I like the easy adjustment of the boil and won't set up to recirculate during the mash until I get my PID and pump set up.

For now, I just heat to mash temp and then leave it alone. I brew indoors and I lose so little in temp I'm not all that worried. I honestly am planning to recirc just cause its cool and adds some bling. . .

__________________
Watershed Brewing Co.
KPSquared is offline
 
Reply With Quote Quick reply to this message
Old 12-02-2013, 02:18 PM   #6
crazyirishman34
HBT_SUPPORTER.png
Feedback Score: 37 reviews
 
crazyirishman34's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Newton, MA
Posts: 1,359
Liked 48 Times on 45 Posts
Likes Given: 81

Default

So you would need a 12v DC power supply. Since the PID supplies that to the SSR and with a pwm controller you need 12v DC to power it and control the SSR. So really all you need to do to have a full power switch is run a circuit directly to the SSR from the PSU with a switch in between.

__________________
www.downtheroadbrewery.com

www.pintley.com Great reviews of craft beer and win prizes at the same time

Down the Road on Facebook
crazyirishman34 is offline
 
Reply With Quote Quick reply to this message
Old 12-03-2013, 12:29 AM   #7
DaddyLongLegs
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2013
Posts: 6
Default

I did the pwm route as a stage, I can give the wiring diagram, but honestly I'd go with the PID and just use the manual control instead.
I used a controller from balkatronics so $8 + $7.50 shipping + $2.50 for a knob + $1 or so for the capacitor + an hour to assemble all of which is non transferable to the upgraded system. Extra $20 for just the PID and you'll be halfway towards your final goal. Make the temp probe and it's mounting your upgrade instead.
Also just to clarify, the pwm takes 5 vdc to 12vdc so finding that is easy. And my mash temps are stable. Using recirculating eBIAB and reading the temps with a thermometer in the mash.

__________________
DaddyLongLegs is offline
 
Reply With Quote Quick reply to this message
Old 12-03-2013, 12:43 AM   #8
KPSquared
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Location: Wetaskiwin, Alberta
Posts: 304
Liked 14 Times on 12 Posts
Likes Given: 2

Default

Already have the pwm board and stuff. I'll take your wiring diagram! I'm pretty much ready start wiring.

__________________
Watershed Brewing Co.
KPSquared is offline
 
Reply With Quote Quick reply to this message
Old 12-03-2013, 01:06 PM   #9
Mike1234
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2012
Posts: 12
Default

I just started a thread and posted a more simplified wiring diagram. It's based off the same image you posted.
Mine is for a PID but it might help you as a starting point.
http://www.homebrewtalk.com/f170/biab-e-brewery-build-445992/

__________________
Mike1234 is offline
 
Reply With Quote Quick reply to this message
Old 02-08-2014, 03:26 PM   #10
KPSquared
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Location: Wetaskiwin, Alberta
Posts: 304
Liked 14 Times on 12 Posts
Likes Given: 2

Default

Figured I'd throw out a quick update. My panel probably won't end up like this but I've been cutting up a bunch of PJ drawings to make what I want to end up with. It's way over the top for BIAB, but I like to tinker and I like flashing lights. So, here it is so far. There will be more lights added. . .

This is my long term plan. I'm currently building a simple PWM controller so I can get brewing. Hey, maybe I'll like it enough that I never get this far, but I doubt it. . .

__________________
Watershed Brewing Co.
KPSquared is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
eBIAB New Guy Drake9 Electric Brewing 2 05-15-2013 05:04 PM
Ebiab mrshaund Electric Brewing 2 02-23-2013 11:36 AM
Keezer Collar Temp Controller Wiring & Fan Wiring Questions. Revvy DIY Projects 12 09-23-2012 01:21 PM
5gal / 240V eBIAB in a toolbox - wiring critique tjash Electric Brewing 6 09-21-2012 04:46 AM
New eBIAB Build - Wiring Help Needed NYCHopper Electric Brewing 6 07-30-2012 04:09 PM