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Search: Posts Made By: electricstorm
Forum: Open ReVolt: open source DC motor controller 07-23-2012, 06:00 PM
Replies: 7,381
Views: 2,403,128
Posted By adamj12b
You should always use a pre-charge resistor with...

You should always use a pre-charge resistor with any voltage. 100 ohms is a Perry good value for any voltage pack. You will want already a 10 watt one but 20 would be better.
Here its a good site...
Forum: Open ReVolt: open source DC motor controller 07-19-2012, 06:36 PM
Replies: 7,381
Views: 2,403,128
Posted By Anaerin
Given that the controller is meant for 500-1000A,...

Given that the controller is meant for 500-1000A, 7 amps is less than 1% of it's range. If you can get up to 100A you should definitely notice something - Try connecting a few (incandescent) light...
Forum: Open ReVolt: open source DC motor controller 07-15-2012, 10:09 PM
Replies: 7,381
Views: 2,403,128
Posted By apowers
I'm glad you got it working. Sometimes it is the...

I'm glad you got it working. Sometimes it is the small things that get you.

Good eye there zsnemeth.

Alvin
Forum: Open ReVolt: open source DC motor controller 07-11-2012, 06:58 PM
Replies: 7,381
Views: 2,403,128
Posted By apowers
electricstorm I used a 230 watt soldering...

electricstorm

I used a 230 watt soldering gun. It worked fine. I would pull the trigger and let the tip get red before I soldered. That way I was only on the fet and copper just a few seconds.

...
Forum: Open ReVolt: open source DC motor controller 06-30-2012, 12:25 PM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
Ya, you need 2.5v to trick the controller into...

Ya, you need 2.5v to trick the controller into thinking that there's a current sensor there. To do that, just use like a 2.2k (or whatever you want) and a 2.2k from 5v to ground, and pick the middle...
Forum: Open ReVolt: open source DC motor controller 06-30-2012, 11:18 AM
Replies: 7,381
Views: 2,403,128
Posted By apowers
electricstorm When I got a usb to rs232 the...

electricstorm

When I got a usb to rs232 the driver that came with it was not windows 7.
I downloaded the driver from manufactor's site.

I think the resistor divider takes the place of the...
Forum: Open ReVolt: open source DC motor controller 06-14-2012, 10:25 PM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
I tested out that big inductor (48 pounds) with...

I tested out that big inductor (48 pounds) with the nichrome wire (4 strands of 12 gauge each). The nichrome was 0.14 Ohms and was in a big bucket of water. It was just liike a motor! Perfect...
Forum: Open ReVolt: open source DC motor controller 06-04-2012, 05:49 PM
Replies: 7,381
Views: 2,403,128
Posted By twotires
Electricstorm, There are 4 pins leading from...

Electricstorm,
There are 4 pins leading from the control board to the LEM HASS current sensor - pin 1 isn't even hooked up to anything, you can omit it. Pin 4 gets +5V and pin 3 is gnd. Pin 2 is...
Forum: Open ReVolt: open source DC motor controller 05-31-2012, 12:50 PM
Replies: 7,381
Views: 2,403,128
Posted By foor
Electricstorm, if you clip your oscope...

Electricstorm,
if you clip your oscope ground to the top of R17 (FET ground), and attach the signal probe to pin 7 of U7, you should be able to see the 12v PWM trace with period of about 60usec...
Forum: Open ReVolt: open source DC motor controller 05-30-2012, 12:48 PM
Replies: 7,381
Views: 2,403,128
Posted By jyanof
for testing, i think you'll just have to hook up...

for testing, i think you'll just have to hook up the current sensor. also, without any current actually flowing, the controller will just go to full on in an attempt to increase the output current. ...
Forum: Open ReVolt: open source DC motor controller 05-28-2012, 06:17 PM
Replies: 7,381
Views: 2,403,128
Posted By isaac_alaska
i don't think it's ever been socketed...

i don't think it's ever been socketed before....it's a good piece and the board has protection in it so there's a resistor that will burn out before the converter. the only problem i know of with the...
Forum: Open ReVolt: open source DC motor controller 05-02-2012, 08:52 PM
Replies: 7,381
Views: 2,403,128
Posted By pamcmills
In response to electricstorm, I'm also using a...

In response to electricstorm, I'm also using a forklift motor in my S-10. It's a GE motor a little over 11 inch and in the 200 pound range. Except for the spline shafts and different bolt pattern on...
Forum: Open ReVolt: open source DC motor controller 04-24-2012, 08:52 AM
Replies: 7,381
Views: 2,403,128
Posted By jmcginley
I'm running a fork lift motor in my Toyota pickup...

I'm running a fork lift motor in my Toyota pickup at 120 volts. It works great with Paul's controller! I bought it from an outfit in Elgin, IL that has a lot of used and junked forklifts; there must...
Forum: Open ReVolt: open source DC motor controller 04-23-2012, 04:42 PM
Replies: 7,381
Views: 2,403,128
Posted By bennelson
Yep, lots of people have repurposed electric...

Yep, lots of people have repurposed electric forklift motors into use as Electric Vehicle motors, including me.

I can't give you any specs on the motor, as there WASN'T an identification plate on...
Forum: Open ReVolt: open source DC motor controller 04-17-2012, 01:45 AM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
The boards came today! Now I just need to solder...

The boards came today! Now I just need to solder all that crap on them. The only board I'm worried about is the 4 layer AC. I've never done 4 layer boards before, but everything seems like it's...
Forum: Open ReVolt: open source DC motor controller 04-12-2012, 07:19 AM
Replies: 7,381
Views: 2,403,128
Posted By adamj12b
Here is the link to the links for all Rev2C...

Here is the link to the links for all Rev2C documentation.

Open ReVolt/PCB Schematics - EcoModder...
Forum: Open ReVolt: open source DC motor controller 04-11-2012, 11:06 PM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
Revision 2D isn't really a revision as much as a...

Revision 2D isn't really a revision as much as a completely different board that was made by the Australians. I'm not sure if they are still making them, but you have the "2C" board. That's the...
Forum: Open ReVolt: open source DC motor controller 03-10-2012, 10:19 PM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
Hello! The 500 amp controller is 1.11C. The...

Hello! The 500 amp controller is 1.11C. The only change from Fran's code is a bug fix with the high pedal lockout, and if pwm goes to 100% but current is zero, then it generates a fault. That's to...
Forum: Open ReVolt: open source DC motor controller 02-19-2012, 02:01 PM
Replies: 7,381
Views: 2,403,128
Posted By adamj12b
Hello Jim, Here is the adapter I use. ...

Hello Jim,

Here is the adapter I use.

Digi-Key - 768-1023-ND (Manufacturer - EVAL232R) (http://search.digikey.com/us/en/products/EVAL232R/768-1023-ND/1836401)

I have never once had trouble...
Forum: Open ReVolt: open source DC motor controller 02-19-2012, 11:05 AM
Replies: 7,381
Views: 2,403,128
Posted By MPaulHolmes
Hi Jim! I got mine at circuit city. I've never...

Hi Jim! I got mine at circuit city. I've never had any trouble with it. Fran had included some delays in the code to allow for the serial to usb hardware. I think at first there were issues.
Forum: Open ReVolt: open source DC motor controller 08-23-2011, 09:40 PM
Replies: 7,381
Views: 2,403,128
Posted By sawickm
I just finished adding the new Beta-2 links to...

I just finished adding the new Beta-2 links to the ReVolt wiki. I tried this this morning, but someone hacked the Ecomodder wiki home page. Its back up and working now.

Open ReVolt/PCB Schematics...
Forum: Open ReVolt: open source DC motor controller 08-08-2011, 10:48 PM
Replies: 7,381
Views: 2,403,128
Posted By adamj12b
Jim, I use this adapter and never had a...

Jim,

I use this adapter and never had a problem.

Digi-Key - 768-1023-ND (Manufacturer - EVAL232R) (http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=768-1023-ND)

-Adam
Forum: Open ReVolt: open source DC motor controller 08-03-2011, 05:43 PM
Replies: 7,381
Views: 2,403,128
Posted By Greg Fordyce
The 4D systems display I am using for the Cougard...

The 4D systems display I am using for the Cougard Explorer has a freely downloadable development environment for Windows. Linux and Mac aren't supported although I think some people have been able to...
Showing results 1 to 23 of 23

 
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