Generators and Motors
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Vintage Electrical Equipment > Generators & Electric Motors General Discussion > Onan Generators
Forgot Password? Join Us!

Notices

Onan Generators Restoring, operating and maintaining vintage Onan generators.

Onan Generators

FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A


this thread has 41 replies and has been viewed 1898 times

Reply
 
Thread Tools Display Modes
  #31  
Old 03-15-2017, 07:05:00 PM
BigBlockChev's Avatar
BigBlockChev BigBlockChev is offline
Subscriber
 
Join Date: Jan 2007
Location: Coquitlam, BC, Canada
Posts: 2,004
Thanks: 356
Thanked 1,543 Times in 907 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

I am wondering if it is possible to unsolder the 24V relays and solder in some 12v ones. You would have to be fairly competent with a soldering iron or have a buddy who is an electronics tech. Might be worth a shot if that is the main difference. If all the resistors do is to limit coil current then they may not make a huge difference. For $300 I would give it a try. Cheers Dan
__________________
It's always something simple.
One test is worth a thousand guesses.
If some is good and more is better then too much is just enough
Reply With Quote
Sponsored Links
  #32  
Old 03-15-2017, 08:20:32 PM
Motorhead's Avatar
Motorhead Motorhead is offline
Subscriber
 
Join Date: May 2007
Location: Central Coast, California
Posts: 3,707
Thanks: 1,732
Thanked 2,537 Times in 1,325 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

Check the voltage label on those relays. If they are 24 volt and what look like 5 pin, I can take some out of the board I have and you can replace them. Do you have ANY transformers in the control box that would take an 120 Volts AC source and drop it to 24 Volts AC? Here is an outfit that I found online that does rebuilds. $170 exchange. They might be able to tell you per your generator model which board you need. But, if you have no transformers and the rest of the controls are 12 volt then as Eric said, someone must have put the wrong board in. http://www.generatorpanels.com/300-0681.asp
Their picture of the 300-0682 board looks different than the picture of yours. They might do an "Odd" exchange, in other words, exchange your 24 volt board for a 12 volt board.
__________________
The Control panel
and gauges of my
7.5JB
Reply With Quote
  #33  
Old 03-18-2017, 12:09:17 PM
gjinc gjinc is offline
Registered-I
 
Join Date: Aug 2014
Location: Caro, Michigan, USA
Posts: 93
Thanks: 35
Thanked 21 Times in 11 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

Quote:
Originally Posted by EricWood View Post
There are other options for that kind of money (and upwards) that involve controls upgrade, but you need the desire/ability to knowledgeably perform such an upfit that will safely integrate the engine to the controller, along with AC voltage sensing, potential voltage regulation upgrade, and fabrication that comes with it.

Eric
Sir, you have my curiously, what do you have in mind??
Thank You
Greg
Reply With Quote
  #34  
Old 03-19-2017, 10:49:41 AM
EricWood's Avatar
EricWood EricWood is offline
Registered-III
 
Join Date: Oct 2005
Location: West Concord, Minnesota USA
Posts: 1,909
Thanks: 239
Thanked 1,387 Times in 752 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

Quote:
Originally Posted by gjinc View Post
Sir, you have my curiously, what do you have in mind??
Thank You
Greg
A basic route to upgrade the engine controls-only, would be to use something such as the DynaGen ES52: http://www.dynagen.ca/es52-auto-start-engine-controller

The ES52 is a discrete device that isn't too difficult to wire in, following the drawings and instructions in the documentation. This device will work with your existing low oil pressure/high coolant temperature switches. Other than sorting out the wiring on an Onan print for tie-in points, and merging them with the ES52 connection drawing, is that a mag pick-up (MPU) will need to be installed over the flywheel teeth, on the flywheel housing.

A higher tech solution (if that's what one desires) is something like the DeepSea 6110 MK II. Would need a new control cabinet to install this in, or have a hinged door fabricated for your existing box. These are more complex to install, due to an increased requirement of electrical/controls aptitude and understanding AC voltage monitoring/protective functions. You will need to get correct sending units for engine monitoring/protection, and the AC voltage points would need to be tied in as well, for monitoring and protection. The software for this device is a free download, and you can upload parameters to the controller with a standard USB printer cable. With the project scale of this option, I would probably get rid of the existing voltage regulation system as well, and put in a third-party knock-off of an SX-460 voltage regulator, or something similarly priced.

https://www.deepseaplc.com/genset/ma...s/dse6110-mkii

All this being said, I would suggest if you were going to seriously consider an alternative solution to replacing the 24VDC engine card you have, then the ES52 would be the easiest option overall. And as always, if at anytime you don't feel comfortable/aren't sure about something, ask.
Reply With Quote
The Following 2 Users Say Thank You to EricWood For This Post:
  #35  
Old 03-19-2017, 11:12:16 AM
Birken Vogt Birken Vogt is offline
Email NOT Working
 
Join Date: Sep 2009
Location: Penn Valley, California, USA
Posts: 1,780
Thanks: 2
Thanked 578 Times in 411 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

The ES52 does not need a MPU; it can use AC output as its speed sensing so it is ideal for situations like this.
Reply With Quote
The Following User Says Thank You to Birken Vogt For This Post:
  #36  
Old 03-19-2017, 12:24:46 PM
EricWood's Avatar
EricWood EricWood is offline
Registered-III
 
Join Date: Oct 2005
Location: West Concord, Minnesota USA
Posts: 1,909
Thanks: 239
Thanked 1,387 Times in 752 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

Quote:
Originally Posted by Birken Vogt View Post
The ES52 does not need a MPU; it can use AC output as its speed sensing so it is ideal for situations like this.
I see that now, thanks. Direct input as well, which is better than the old ECU brand versions of the same thing, which worked off AC voltage on select models, but had to be transformed down to 12~15 volts.
Reply With Quote
  #37  
Old 03-19-2017, 03:44:05 PM
gjinc gjinc is offline
Registered-I
 
Join Date: Aug 2014
Location: Caro, Michigan, USA
Posts: 93
Thanks: 35
Thanked 21 Times in 11 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

I like the ES52, seems like a straight forward upgrade. One place has the GSC300, claims to be the next model.
http://www.nooutage.com/gsc300.htm

The DeepSea 6110 MK II looks interesting.

"I would probably get rid of the existing voltage regulation system as well, and put in a third-party knock-off of an SX-460 voltage regulator, or something similarly priced. "
You would use the SX-460 in place of the VR-21

http://www.dynagen.ca/gsc300-digital-genset-controller
Reply With Quote
  #38  
Old 03-19-2017, 03:55:57 PM
Birken Vogt Birken Vogt is offline
Email NOT Working
 
Join Date: Sep 2009
Location: Penn Valley, California, USA
Posts: 1,780
Thanks: 2
Thanked 578 Times in 411 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

The GSC300 is being deprecated in favor of the TG350 I believe.

They have been discouraging use of the GSC300 for quite a few years now.

But I see no reason to pay for all the added features and computer configuration when the ES52 will do it with screw adjustments and DIP switches. Plus it has the relays you need already on the board.
Reply With Quote
The Following User Says Thank You to Birken Vogt For This Post:
  #39  
Old 03-19-2017, 04:01:22 PM
gjinc gjinc is offline
Registered-I
 
Join Date: Aug 2014
Location: Caro, Michigan, USA
Posts: 93
Thanks: 35
Thanked 21 Times in 11 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

The only reason I brought up the GSC300 because I can get for less than the ES52. However in reading about the GSC300, 1 place stated that you have to have a programming cable,GSC300-USB-PGMR, which is about 250 bucks.
Reply With Quote
  #40  
Old 03-19-2017, 05:10:55 PM
Birken Vogt Birken Vogt is offline
Email NOT Working
 
Join Date: Sep 2009
Location: Penn Valley, California, USA
Posts: 1,780
Thanks: 2
Thanked 578 Times in 411 Posts
Default Re: FAIL 1st power outage with Onan 45 OEM-15r 9296C and OTOCA 5566643 Spec A

Yes the TG350 programs through a standard USB cable while the 300 has its own programmer which seems very kludgey.

But after having run through all these options I have decided that the ES52 is best for 95% of applications unless you need some special feature.
Reply With Quote
The Following User Says Thank You to Birken Vogt For This Post:
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Onan 45 OEM-15r and OTOCA 5566643 Spec A 2 or 3 Wire Output? gjinc Onan Generators 6 06-23-2016 10:08:35 AM
Onan OTOCA 5566643 spec A amp transfer switch Questions gjinc Onan Generators 8 03-06-2016 10:04:24 PM
So California Power Outage lijobi Onan Generators 29 09-11-2011 06:02:16 PM
I'm ready for a power outage! Gunny Onan Generators 26 12-15-2010 09:01:56 AM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 03:30:24 AM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277