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

["" <thumphrey mynra com>]

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.


Stay Charged!
Hump


> 
> 
> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of
> pabendro gemair com
> Sent: Monday, April 12, 2004 9:34 AM
> To: Elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E20 Rookie - more questions
> 
> 
> At 12:43 PM 4/11/04 , Steve George wrote:
> Some seem to operate with a little push, as if there is not enough 
> voltage/current getting to them to trip them.
> 
> Is there something else in series with the relay coil circuits?
> 
> 
> Make sure the drive motor field is supplied with power. That may fix the 
> slow energy problem, and this one too. The voltage to the relays is 
> probably low due to the armature pulling too much current.
> 
> 
> 
> 
> SteveS wrote:
> 
> ... Turned out it wasn't getting into high speed (throttle-wise) which 
> is 
> all resistors bypassed. ...
> 
> I trhink that is NOT bypassed. The non bypassed resistors reduce the 
> current to the field. As SteveS said, loose connections at the 
> microswitches are a possibility. also the tops wear off, but usually the 
> switches at the other end.
> 
> 
> 
> 
> 
> 
> 
> 
> Paul and Sue Abendroth
> pabendro gemair com
> our permanent address is pabendroth dma org
> 
> 
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