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RE: (ET) Re: ET Reliability



Another point in Alltrax favor. The controller takes care of the motor and ramps down and back up when you flip from frd to rev. It works great
John Briese

From: "RJ Kanary" <rjkanary nauticom net>
To: <elec-trak cosmos phy tufts edu>
Subject: (ET) Re: ET Reliability
Date: Thu, 4 Nov 2004 23:30:54 -0500

Before everyone starts ripping their E20's from fwd to reverse for
fun..........

The difference between the E20 and the E15 is that the E15 switches
field current to reverse, the E20 switches armature current. Field
current is small by comparison, and is thus switched by a small DPDT
relay.

         Well, not ALL of the E-15 models are configured that way.<G>
E-15 models HA and later use single coil reversing armature contactors.
Any operation of the type described is NEVER in the best interests of longevity. For either control system. However, the point being made is that the armature reversing configuration WILL forgive the occasional momentary lapse of reason. The field reversing types though, well, they tend to not deal well with that style of operation. :(


RJ Kanary  Bandi Bros. Inc.
Member TRNi  Since 1998
ASE® Certified Master Auto Technician

rjkanary nauticom net

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