wiring

When I finally hooked up the motor and controller and fixed up all the error messages, I was pretty dissapointed that the motor did not work.

I am hoping that it is because I did not connect the FS1/belly switch as shown in the link below


http://img15.imageshack.us/i/controlwiringsepexpower.pdf/


this link may also be useful

http://img268.imageshack.us/i/powercontrolwiringsepex.pdf/

mr2 power steering conversion

Here is the simple version

http://www.driveev.com/jeepev/convpgs/psteer.php

here is the complex version:

http://www.evalbum.com/tech/mr2_powersteering.html

I think it better to start with the simple version and see how much power it draws.

making the DC side floating

from:

http://www.aeva.asn.au/forums/forum_posts.asp?TID=339&KW=jaycar+charger&PID=2785#2785


You can get these chargers cheaper from Soanarplus
https://www.soanarplus.com

Same part number.

Do not disconnect the mains earth.
DO disconnect the output negative from the earth. From memory, on the sister unit (24 volt 6 amp) it's a single green/yellow wire from the pcb to the chassis.

I've got a number of these now. A 12 volt 6 amp unit for general charging. Several years old now and has a noisy fan. A 12 volt 12 amp unit fitted to a push along fork lift at work. And 2 x 24 volt 6 amps for charging my EVT at work.

Edit: The case is grounded because it's a metal case. It's a safety issue.

Amanda

charger layout

This is the charger arrangement as it stands. The left box will be a junction box for the AC coming in. The right box will be a relay box so that the chargers are disconnected from the batteries when the chargers are not connected.

Hydrogen creation rate - how big a fan?

from:

http://www.osha-answers.com/lore/attachment.php?id=9

1. When the battery is fully charged, each charging ampere supplied to the cell produces about 0.016 cubic feet of hydrogen per hour from each cell. This rate of production applies at sea level, when the ambient temperature is about 77 ºF, and when the electrolyte is "gassing or bubbling."

okay - some calcs:

0.016cubic feet = 0.432 L/A/cell/hr = 1.2e-4 litre/ sec / Cell

number of cells = 36

so 4.32e-3 lps/A

or 9.6e-3 cfm (as all fans seem to be quoted as this)


for overnight charge:

max charging rate = 10A

0.0432 lps
0.096 cfm

for regen charge

max charging rate = 100A

0.432 lps
0.96 cfm

breaker orientation

breakers say that they must be mounted vertically. That is akward - I need to find out why.

this may help

http://www.ecmag.com/index.cfm?fa=article&articleID=7650

here is the same circuit breaker mounted horizontally

http://glassphoto.googlepages.com/EVrack.jpg/EVrack-full.jpg

and another one!

http://www.aracnet.com/~rmerwin/prizm/Contactors.jpg

relay and fuse box for chargers

I think that the neatest way to do the relays and fuses will be to make a custom pcb

mount the fuses this way:

http://australia.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=3607266

then find some nice relay sockets that are also pcb mount

and get some nice screw terminals to attach wires on the input and output.