Re: [GrizHFMinimill] [Fwd: Re: Mini-Mill Controller Repair]



Jim,
 
The controllers sadly are not p'n'p.
The KB documentation tells what size the 'Horsepower' resistor should be. There is no 'default' value as the controller is designed to work with such a wide range of motors.
The purpose of the hp resistor is to generate a voltage dependant on the current drawn by the motor under its abs max load...the voltage developed across the resistor is sampled and this determines the point at which current limiting occurs....
 
HTH....
John

--- On Tue, 17/1/12, Jim E. <jim0000@attglobal.net> wrote:

From: Jim E. <jim0000@attglobal.net>
Subject: Re: [GrizHFMinimill] [Fwd: Re: Mini-Mill Controller Repair]
To: GrizHFMinimill@yahoogroups.com
Date: Tuesday, 17 January, 2012, 17:31

 
New year, going back into time...

Was the KBMD-0240D unit you purchased "plug 'n play" or did you have to
buy a separate "Plug-in Horsepower Resistor" for it to complete the
project? I ask 'cuz I see references to the resistor in KB's
documentation but it doesn't say what the box's "default" value (if any) is.

Graciously,
Jim E.
Lakewood, Calif.
All Hail Rube Goldberg!

David wrote:
> now I gotta g find the box, Model KBMD-240D is the one that I have, its KB part number is 9370A with that you should be able to locate the user manual online and see if it will fill your needs.
>
> Anyway I have had mine on the mill since just about the time i got the mill, which is when I trashed the original when I went install a FWD REV switch.
>
> I thought I had a photo on here of the install but guess I don't.
>
> --- In GrizHFMinimill@yahoogroups.com, "Jim E." <jim0000@...> wrote:
>
>>What model number? Lots of 'em have a "-240*" suffix.
>>
>> Graciously,
>> Jim E.
>> Lakewood, Calif.
>> All Hail Rube Goldberg!
>>
>>
>>David wrote:
>>
>>>I'm not endorsing anything. I had the rather unpleasant mishap when I went to drill a hole in the bottom of the original controller box and when the 1/2 inch bit I was using broke through the plastic as it will it grabbed and I pulled, anyway I ran the drill bit across the full width of the board, now let me tell you this is a sinking feeling like someone just jerked the boat out from under you...
>>>
>>>Well after looking at the board, and a little research I found KB Electronic which made the board I trashed, and probably makes the board in the mill that you have.
>>>
>>>I found and purchased mine for what it was going to cost to get one from somewhere else for the same money and I got it local. The only thing I had to do was to install the resistor and there was something else but there was one on the board that I trashed (by the way is someone wants I can let them have it for a very good price) I did not get the FWD/REV Brake switch setup, I installed a DPDT toggle adn it has been fine since. I was also able to move the box from the side of the mill head to the back of the column which is a more sensible place for it as it clears up the side of the head on the left.
>>>
>>>Anyway heres the reason for this long post, http://www.kbelectronics.com/
>>>
>>>anyone got controller problems and need a new one go direct to the source, you can also at times find the same or similar controllers on the Evil B#$%y for like 20 bucks, I have one from Minarac I gave 20 and shipping for 90 volt controller will handle up to a 1 hp motor. gonna stick it on my column drive for my ZX45 mill.
>>>
>>>--- In GrizHFMinimill@yahoogroups.com, J RUDD <john.rudd@> wrote:
>>>
>>>
>>>>Yes,
>>>>
>>>>Another endorsement for KBC.
>>>>
>>>>My mill has the KBL240 with no issues so far.
>>>>
>>>>regards
>>>>J
>>>>
>>>
>>>
>>>
>>>
>>>
>>>------------------------------------
>>>
>>>Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>


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