Re: (ET) Reverse draws a lot of current: Why?

["David Roden (Akron OH USA)" <roden ald net>]

On 23 Feb 2002 at 15:21, Christopher Zach wrote:

> I backed up my driveway ... the power meter pegged ...
> 
>  the motor
> spins a lot faster in reverse than fwd at the same speed setting and gear
> with a lot less torque. Also it seems the current draw in reverse (esp
> when you go to field weakening speed 1) is insanely high ...

These are classic symptoms of low field current.  Check your reversing 
relay.  The contacts could be burned or pitted.


David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
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