[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: (ET) Does anyone have the E-15 and E-20 traction motors electrical specs ? Planning Sepex conversion



These MAY help. :) First attempt............


RJ

On 12/15/2022 3:34 PM, john wrote:
Hi all,

I am planning to install a Curtis 1266A SepEx controller into an E-15.

From what I have read, I need the motor specs which describe Armature current versus field current, to define and program in a field map.

When I searched Google for this, a long ago (2004) discussion popped up where Steve Richardson @ Alltrax asked for same thing to program into their controller being designed for the Elec-Trak.

They DID get a reply from Mike Wallace in KY.

Someone also asked that these specs get posted more publicly, but if that happened, I did not find them.

Does anyone have this motor info  ?

[Also, anyone have any idea what the parts are inside the custom labelled TO-220  devices inside a Curtis 1266A ?  I have a shorted one (TO-220), and the marked number does not pop up on Google.  I assume it is a 100 Volt (min) High Current FET.  All the gates get fed through 10 ohm resistors. (the one feeding shorted TO-220 is blown open). The dual transistor that feeds resistor also blown, and the Half bridge driver that fed that.  But, the CPU still talks to the programmer, So I thought it might be worth a try to fix it.  My current plan is reprogram the controller to limit amps by 1/6th lower than original 275A max, and remove matching labelled device on the other side of the half-bridge circuit. I ohmed out the power circuit board and drew the schematic. But the logic board has 10x the traces & devices. & I don't really need the whole thing (and I don't have a month of personal energy to reverse engineer it), just the circuit from that half bridge driver out to the power devices. What I really need is a Curtis 1266A service / repair manual. But, I might be successful without that... or else generate a bunch more smoke ...  Either way, I still the the E-15 motor electrical specs]

John



_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak

-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20221216/474c6287/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: B8zscQiY80VfjvVd.jpg
Type: image/jpeg
Size: 1704833 bytes
Desc: not available
URL: 
<http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20221216/474c6287/attachment.jpg>