Re: FW: (ET) E20 Rookie - more questions

["" <thumphrey mynra com>]

No SteveS, it was a case of being snip-happy, that paragraph was E12 
related in the beginning, I messed it up.

The weird thing is though that in a previous post yesterday, SteveG 
mentioned that he had 40v across the pack while charging. That's too low, 
his pack is not getting fully charged. That is the source of his problems. 
And we both missed it....

Steve, you probably need to replace the capacitors in your charger, I am 
not familiar with this fault personally. Someone else will pipe in and 
give you some great advice. I believe though that you need at least 43 
volts out of the charger. I think Paul has some experience in this area.


Stay Charged!
Hump

 

> 
> 
> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of steves
> Sent: Monday, April 12, 2004 11:22 AM
> To: Elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E20 Rookie - more questions
> 
> 
> Somehow my replies to the EGT120 thread got into the E20 thread.
> 
> 
> ----- Original Message ----- 
> From: <thumphrey mynra com>
> To: "et" <>
> Sent: Monday, April 12, 2004 10:47 AM
> Subject: Re: (ET) E20 Rookie - more questions
> >
> >>
> > >You're both right.
> >
> > >There are the large strap resistors (mounted over the charger)that 
> > >limit
> > armature current and then the smaller >ceramic resistors (mounted on a
> card
> > behind the dash) that weaken the field. To get the highest speed you 
> > need
> > >to bypass the straps and not bypass the ceramics.
> >
> > Yes, but the E12S ( and I assume the E12) does not have the field
> weakening
> > resistors. The E12S has three forward speeds, the E15 adds two? more
> speeds
> > (as you note) by adding field weakening control.
> >
> > In either case though, wouldn't greatest power (not speed) come from 
> > no series resistance (in either?).
> >
> Yes, you're correct about the E12 not having field weakening resistors, I
> was writing about what applies to my I-5 and E-20's (thread subject).
> 
> Yes! Max power is with no resistors in circuit.
> 
> Stay Charged!
> Hump

> 
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