PID Cycle time help... - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > PID Cycle time help...

Reply
 
Thread Tools
Old 01-07-2009, 11:41 PM   #1
The Pol
Recipes 
 
Feb 2007
Posts: 11,454
Liked 96 Times on 81 Posts



So, I am playing with my PID... on my newly updated rig. It is from Auber, the one that many other ppl are buying here.

I am happy with the performance, but I have a question about cycle times when in manual mode. It sayes that "t" is the cycle time, adjustable between .5 - 125 seconds. When "t" = 0 the cycle time is .5 seconds it sayes. So, I try 3, 4, 5... and guess what, the cycle time is ALWAYS 5 seconds. Not bad, I can still boil at 65% pretty nicely, but what gives?

I would love to cut the cycle time in half, but no matter what I set it to, it is 5 seconds or more. When I set "t"=10... it is 10 seconds... but once I get under "t"=5, it is always 5 seconds. UNLESS I set it to 0,1 or 2... THEN the cycle is 60 seconds. Why?

Here is the manual... am I missing something?
http://auberins.com/images/Manual/Ma...sion%203.4.pdf


 
Reply With Quote
Old 01-07-2009, 11:57 PM   #2
Stile
 
Stile's Avatar
Recipes 
 
Oct 2008
Union City, California
Posts: 157

What model number is yours?? I assume that since your controlling a SSR that you have logic output control.
__________________
Fermentor1
Fermentor2
Secondary1 Hefe
Secondary2 Pumpkin Ale
Conditioning
On Deck Holiday Ale

 
Reply With Quote
Old 01-07-2009, 11:59 PM   #3
The Pol
Recipes 
 
Feb 2007
Posts: 11,454
Liked 96 Times on 81 Posts


SYL-2352

It is nice, but I cannot for the life of me figure out how to get less than a 5 second cycle time.

 
Reply With Quote
Old 01-08-2009, 12:11 AM   #4
Stile
 
Stile's Avatar
Recipes 
 
Oct 2008
Union City, California
Posts: 157

Hum....

As the manual reads, other then 0, each number would represent its value in seconds. IE. 3 = 3 seconds. Now unless there is a set delay value, then i'm just as stumped as you are
__________________
Fermentor1
Fermentor2
Secondary1 Hefe
Secondary2 Pumpkin Ale
Conditioning
On Deck Holiday Ale

 
Reply With Quote
Old 01-08-2009, 12:13 AM   #5
The Pol
Recipes 
 
Feb 2007
Posts: 11,454
Liked 96 Times on 81 Posts


Yeah... I read it several times... makes no sense to me. Like I said, I can boil well at 65% with no real pulsing, but it would be cool to get a 3 second cycle time. Maybe I can email Auber.

EDIT: I just emailed Auber, I will post what they say when they respond. The manual acutally sayes that if you are using an SSR, to set the cycle time to 2 seconds or less for better control. Well, I wish I could!!


 
Reply With Quote
Old 01-08-2009, 12:20 AM   #6
kladue
Senior Member
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Dec 2006
Turner, Oregon, Oregon most of the time now
Posts: 2,305
Liked 53 Times on 47 Posts


You are trying to set the output cycle time per the manual, thought it was the calculation time delay but checked manual and found my guess was wrong. What is the OP-A value set to? is it set to 0.


 
Reply With Quote
Old 01-08-2009, 12:25 AM   #7
The Pol
Recipes 
 
Feb 2007
Posts: 11,454
Liked 96 Times on 81 Posts


FIXED it... I just decided to change the Proportional Constant from the defualt of 500 to 0.... bang... I can set any cycle time I want now! It is werkin fine. Now my output cycle is set at 1 second and there is NO pulsing!

BTW I ran the boiler for an hour at 65% and the heat sink barely got warm to the touch!

 
Reply With Quote
Old 01-08-2009, 12:27 AM   #8
Stile
 
Stile's Avatar
Recipes 
 
Oct 2008
Union City, California
Posts: 157

AHHHH CRAP!! you beat me to it... was going to say to set P = 1
__________________
Fermentor1
Fermentor2
Secondary1 Hefe
Secondary2 Pumpkin Ale
Conditioning
On Deck Holiday Ale


 
Reply With Quote
Old 01-08-2009, 12:36 AM   #9
The Pol
Recipes 
 
Feb 2007
Posts: 11,454
Liked 96 Times on 81 Posts


Ahhh, I can boil nicely at 60% power with the 5500W RIPP and still maintain 209F in the kettle.

 
Reply With Quote
Old 01-08-2009, 12:48 AM   #10
Stile
 
Stile's Avatar
Recipes 
 
Oct 2008
Union City, California
Posts: 157

Now doesn't the PID in auto mode allow for ramp back after set points are met?

If nothing else, setup a small buzzer to alarm when say.... 210 degrees is met.
__________________
Fermentor1
Fermentor2
Secondary1 Hefe
Secondary2 Pumpkin Ale
Conditioning
On Deck Holiday Ale


 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yeast cycle - Fermentation Endovelico Fermentation & Yeast 17 09-06-2009 01:32 PM
OT: 2 Cycle Engines Gas Mix Problem Stevorino General Chit Chat 23 02-09-2009 12:57 PM
Life Cycle Orfy General Chit Chat 27 03-23-2007 02:49 PM
Amber Ale and fermentation cycle Ol' Grog Beginners Beer Brewing Forum 3 10-04-2006 02:42 AM
Kegging Life Cycle Gilbey Bottling/Kegging 1 07-06-2005 06:35 PM


Forum Jump