RE: (ET) got it running

["john briese" <goodguyforsure hotmail com>]

I know it won't be cheap, but there is something very frustrating about 
using a 30 year old solution that was built out of off the shelve parts to 
begin with when there is an elegant control available.
Anyway, all the "speeds" after the cruise light came on, just slowed the 
tractor down.  Now, I hear relays go but no movement, voltage goes to 0 and 
the lights come on super bright when you hit the "gas".  I am sure I have a 
short to ground somewhere.
John


> From: Humphrey Timothy H Contr AFRL/IFEC <Timothy Humphrey rl af mil>
> To: 'john briese' <goodguyforsure hotmail com>
> Subject: RE: (ET) got it running
> Date: Thu, 22 May 2003 13:40:36 -0000
>
> John;
>
> My I5 was malfunctioning also.
>
> Can you describe what yours was doing before it died. If your controller
> card is bad, I may be able to help you fix it.
>
> I am an electronic technician and the cards for the I5 control are simple
> circuits. Bill gets $45 for a new card.(which is not bad) I rebuilt mine 
> for
> less than twelve.
>
> It may be your card that's bad or it may not, if it isn't I would consider
> going with the electronic PWM controllers which will greatly simplify the
> wiring and get rid of most of the relays. However it will not be cheap.
>
> Stay Charged!
> Hump
> I5/NY
>
>
> -----Original Message-----
> From: john briese [mailto:goodguyforsure hotmail com]
> Sent: Thursday, May 22, 2003 9:07 AM
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) got it running
>
>
> I have an I-5 that has stopped running. The speed controls were not working
> properly before and it is now dead.  I want to install a new motor
> controller, but I am not sure I understand all thats involved. Ignoring the
> safety lockouts for the time being:
> 1) Can I use the forward/reverse switch with a new controller or do I need 
> a
>
> new set of contactors for this function.
> 2) I understand the present system uses field weakening, is this necessary
> and are there controllers which will do this?
> 3) What is the MC7 that you list below?
> 4) Can you show me a wiring diagram that you used?
> Thanks for the help.
> John Briese
> 2- I5's, one living, one dead!
>
>
> >From: "Ferguson Apiaries" <ferga hay net>
> >To: <elec-trak cosmos phy tufts edu>
> >Subject: (ET) got it running
> >Date: Sun, 18 May 2003 20:12:51 -0400
> >
> >Well I finally got my ET running.  I went to fix the old electrics but
> >thought it was to complicated even with the semantics.
> >
> >I put a Curtis 1206 for the armature and a MC7 30 amp in for the field.
> >I
> >added the Landis battery charger and after 2 hrs on old golf cart 
> batteries
>
> >I took it for a drive.
> >
> >Reverse is built into the MC7 so I have a dpdt no contact in centered
> >switch for forward and reverse that shuts the power off .  I have to put
> >the belly mower on and add the safety switches for it.  I just need a new
> >set of batteries now.
> >Ferguson Apiaries
> >Hensall, On
> >519-236-4979
>
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