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Brusa AMC325 problems

 
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MajorWilson



Joined: 26 Sep 2005
Posts: 236
Location: Peoria, AZ

PostPosted: Wed Sep 28, 2005 11:57 pm    Post subject: Brusa AMC325 problems Reply with quote

OK, now I seem to be having the same problem as Jacob. Only I have a dead AMC320. I have a 320 and 325 in my second E-10. The 320 was DOA when I bought the truck. I've contacted Tom, Dave and Victor with questions off this forum and desided to ask the group here. Anyone have a spare that they are willing to part with? On the other hand, I thought about maybe the one controller could control two motors? Would that work?
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Jeff Wilson
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ThomasHudson
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Joined: 26 Sep 2005
Posts: 130
Location: Port Washington WI

PostPosted: Thu Sep 29, 2005 12:55 am    Post subject: Reply with quote

I don't think running two motors off one controller is feasible. Each motor has a feedback mechanism that tells the controller how fast it's turning and the controller adjusts as needed. I don't know of any way to deal with that issue.

In addition, the AMC320 is rated at 160A continuous duty, meaning if you could hook it up to two motors, you'd only be able to drive each with 80A, which is fairly low. You might as well take the second motor's belt off and drive the truck on one motor -- I think it would be a wash, power-wise.

Have you asked Victor at Metric Mind if Brusa would repair the controller?

If they won't, I'd be willing to take a look at it.

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Jacob



Joined: 26 Sep 2005
Posts: 35
Location: Sebastopol, CA

PostPosted: Thu Sep 29, 2005 1:05 am    Post subject: Dead controllers Reply with quote

What about new digital controllers for our E-10's? Anyone have an idea as to where to research this? Seems like 7-10 year old analog controllers should last longer than they have....
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MajorWilson



Joined: 26 Sep 2005
Posts: 236
Location: Peoria, AZ

PostPosted: Thu Sep 29, 2005 9:40 am    Post subject: Reply with quote

Well, too bad about running them together. I was initially thinking about a parallel configuration because of the split of the power I started thinking about a series connection instead. Jumper the power from one motor to the other. I still couldn't get around the speed sensor thing, but was curious that since one motor was sending speed back to the controller and the other motor was spinning the same, they might not fight each other.

I got some feedback from a guy in Switzerland named Andreas Kruspan. He gave me some initial places to look. He said that the power supply is working but there might be some other places to check first. Like the motor temp sensor and the star/delta swithing mechanism as well as the battery current pot meter inside the box. I'll open it up today and start looking.

Jeff

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Jeff Wilson
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ThomasHudson
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Joined: 26 Sep 2005
Posts: 130
Location: Port Washington WI

PostPosted: Thu Sep 29, 2005 11:36 am    Post subject: Reply with quote

Apologies if you've already tried this, but have you tried swapping the seemingly bad controller into the other one's spot? Testing in that mode would eliminate any outside factors (pot box, motor sensors, ignition box, etc).

If it works OK in that configuration, it would be time to check all the other stuff that connects to it.

If it's still not working right, take a look at those 25- and 9-pin connectors coming off the controller and check them for corrosion. My truck at one point had a problem where one controller would go into regen even when the regen switch was turned off ("Slippery") -- Turned out a couple of the pins on the 25-pin connector for that controller had been corroded by some road salt and they weren't connecting properly.

Good luck and keep us posted!

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Tom Hudson
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MajorWilson



Joined: 26 Sep 2005
Posts: 236
Location: Peoria, AZ

PostPosted: Thu Sep 29, 2005 2:00 pm    Post subject: Reply with quote

I never thought about the pin connectors on the controller. I switched them with the other controller and it didn't work, but never looked at the female side of the connector on the controller. I'll check that out.
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Jeff Wilson
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276V Phil



Joined: 28 Sep 2005
Posts: 16

PostPosted: Tue Oct 04, 2005 9:42 am    Post subject: Brusa Chargers Reply with quote

Thanks.

Last edited by 276V Phil on Tue Sep 12, 2006 11:34 am; edited 1 time in total
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ThomasHudson
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Joined: 26 Sep 2005
Posts: 130
Location: Port Washington WI

PostPosted: Tue Oct 04, 2005 10:33 am    Post subject: Reply with quote

Phil, the Brusa charger is the black cube charger under your hood with the cooling fan on top. Brusa's part number for it is NLG-412, Solectria bought the chargers from Brusa and labeled them as Solectria BC-3300's. It's an excellent charger, smart and programmable.
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276V Phil



Joined: 28 Sep 2005
Posts: 16

PostPosted: Tue Oct 04, 2005 10:49 am    Post subject: Reply with quote

Thanks.

Last edited by 276V Phil on Tue Sep 12, 2006 11:33 am; edited 1 time in total
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Jimmy Argon



Joined: 06 Oct 2005
Posts: 41
Location: Az

PostPosted: Sun Mar 12, 2006 11:10 pm    Post subject: BRUSA 325 problems Reply with quote

I can't remember which thread I read about the problem I am now having. It seems that during acceleration the truck starts to "jerk" or goes into some rythmic vibration, it is bad enough that the only way to stop it is to release the accelerator. I remember reading something about this, can anyone help?
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Jimmy
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terryjm1



Joined: 27 Sep 2005
Posts: 119
Location: St. Louis, MO

PostPosted: Mon Mar 13, 2006 5:26 pm    Post subject: Reply with quote

Hey Jimmy,

My truck was doing that surging thing. However, I believe my problem was related to old "mushy" batteries. Voltage would drop to below min operating levels. Then the controller would cut out. The voltage would jump back up about 40-50 volts and the controller would kick on again. And the process would repeat.

However, there is another thread out there discussing fauly relays causing that problem, I think.

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Terry Merrell
tmerrell2@sbcglobal.net
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Jacob



Joined: 26 Sep 2005
Posts: 35
Location: Sebastopol, CA

PostPosted: Mon Mar 13, 2006 6:59 pm    Post subject: Jerkiness Reply with quote

From my (limited) experience, jerkiness is often due to either an issue with a problem with a speed sensor (needs adjustment or the sensor wheel is scratched), or that one motor controller is putting out less power than the other one causing the motors to "fight each other", i.e. they are out of sync.
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terryjm1



Joined: 27 Sep 2005
Posts: 119
Location: St. Louis, MO

PostPosted: Mon Mar 20, 2006 9:27 pm    Post subject: Reply with quote

I contacted Brusa over a year ago and they indicated they might do a limited production of the controllers. However, if memory serves me, they were going to cost about $6000 each.

Do you know if you can swap in a solectria UMOC. I know there are some used ones available for $700-$800 each.

On the question of two motors running from one controller, I have given it some thought. I have even "email" discussed it with another Solectria owner that plans to test it out. However, I have not heard back from him with results.

Instead, on my future project list is installing a single AC55 motor in place of the two smaller ones.

With Solectria/Azure no longer supplying parts for the UMOC series and the high cost of replacements, it makes sense to me to consider alternatives.

With the UMOC 445 it would work. I dont think a 320 or 325 would have enough output. Electro-automotive offers a "kit" that uses the UMOC445 (Now DMOC) with an AC55. I also have some program parameters I copied from a used UMOC I purchased as a spare that ran single UMOC445 with an AC55 on a small bus.

I am hopeful I can find a reasonably priced used AC55 motor to experiment with.

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Terry Merrell
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MajorWilson



Joined: 26 Sep 2005
Posts: 236
Location: Peoria, AZ

PostPosted: Tue Mar 21, 2006 4:05 pm    Post subject: Reply with quote

Another outlet for Brusa or other AC parts is Victor at MetricMind.com. He is an authorized dealer for Brusa components and might have the ability to find factory rebuilds or possibly used components.
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Jeff Wilson
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Jimmy Argon



Joined: 06 Oct 2005
Posts: 41
Location: Az

PostPosted: Sat Sep 09, 2006 8:35 pm    Post subject: BRUSA AC325 controllers Reply with quote

There are 2 BRUSA AC 325 controllers with regen on E-Bay:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=140027824685&ih=004&sspagename=STRK%3AMESE%3AIT
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=140027825578&ih=004&sspagename=STRK%3AMESE%3AIT
jimmy

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