Re: [CAD_CAM_EDM_DRO] Aerotech Servo Motors?

Gregory Kamysz wrote:

>>Not if you can figure out how to make it work. These are almost certainly
>>1000 line encoders, giving 4000 count/rev. Why replace them with low
>>resolution encoders?
>>
>>
>
>Well the board is clearly marked for power and what the wires are for
>but I don't know what the output is.
>
>http://www.edfinfo.com/other/encoder.jpg
>

Assuming this is a digital encoder, not analog, then Sin and SIN\ (Sin bar)
are the same as A and A\. Cos and COS\ is the same as B and B\.
M and M\ must be the "mark" or index channel.

>
>This is a pic of the terminal board. Wires 1-8 go to the encoder. The
>bundle of wires in the center leads to the input-output connector for
>the motor/tach/encoder assembly. The encoder itself has two wires
>marked A and B ( number 6 and 7 on the board) but the other wires are
>also connected. After hooking up power to the input on the encoder I
>put my fluke in frequency mode on the 6 and 7 to ground and picked up a
>count as I turned the shaft. Things look good.
>
>The connector on the left of the board is for the limit switches. One
>of the switches is broken. Is there anything specific about the
>switches other than taking into account the environment they operate in?
> There also seems to be an optical setup for limit switches in the
>tables. I'll see if I can figure out how these work and do away with
>mechanical switches.
>
>

The switches may have gold contacts for low voltage sensing. That is about
the only thing that might be special about them. They call that a "dry
contact"
switch.

Jon