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Author Topic: Kasuga NC mill to CNC ?'s  (Read 38929 times)

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Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #50 on: May 28, 2012, 03:08:31 AM »
Yes you could run a pulley or it may even be possible to put the encoder on the opposite end of the ballscrew.

Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #51 on: May 28, 2012, 12:30:22 PM »
So I just traced the wire back to the bandit control it has 7 wires total per resolver and it goes into a circuit board labeled J6

Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #52 on: May 28, 2012, 01:36:55 PM »
I wonder if that circuit board could be a resolver to ttl converter, would be good if it was.
Do you have a pic of it?
Any other info on the board itself?
Are there wires coming out of that board and going into the terminals on the control? if so how many and what terminals?
Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #53 on: May 28, 2012, 01:44:06 PM »

 
Re: Kasuga NC mill to CNC ?'s
« Reply #54 on: May 28, 2012, 01:54:24 PM »
J6 has a set of wires that goes to J1 and the wires that come in from the resolver on J6 are for x y and z. I will have some more pics up soon
Re: Kasuga NC mill to CNC ?'s
« Reply #55 on: May 28, 2012, 03:18:57 PM »












Re: Kasuga NC mill to CNC ?'s
« Reply #56 on: May 28, 2012, 03:42:00 PM »
So which encoders should I pick up? I was doing some reading and it looks like I want Rotary Encoders but I haven't a clue which ones to buy.

Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #57 on: May 28, 2012, 04:05:31 PM »
Pics dont really help I am afraid, would really need a manual on the specific model of control you have to see what boards are what. I was in hopes there was a converter for the reolver signals but cant say if there is or not.
You can buy such a board but think they are about $150 a piece and probably end up not giving as good resolution as an encoder could.

For an encoder you are probably wanting something in the 2000 line range (8000 pulses per rev) and it is a 5v ttl  incremental encoder that you want. Preferrably one that has a line driver incorporated so that you have differential signals out, reason for that is it is much more noise imune than single ended signals. Not sure if the Kflop/Kanalog takes differential signals though so if it doesnt then you would need a line receiver as well.
Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #58 on: May 28, 2012, 06:32:08 PM »
I just posted on Dynomotion yahoo group and this is the info I got.


Re: [DynoMotion] What encoder do I use for KFlop?

Yes Kanalog has differential encoder inputs on JP1 and JP2.  16 differential signal inputs (32 screw terminals) which is enough for 8 encoder's worth of A B signals.
 
Kanalog converts the differential signals to LVTTL signals and exports them to KFLOPS single ended encoder inputs.
 
TK

From: Michael Niksch <michaelniksch@...>
To: "DynoMotion@yahoogroups.com" <DynoMotion@yahoogroups.com>
Sent: Monday, May 28, 2012 2:55 PM
Subject: Re: [DynoMotion] What encoder do I use for KFlop?

 
The Kanalog board has provision for differential encoders.8

On May 28, 2012, at 2:46 PM, "mattbsemail" <mattbsemail@...> wrote:

 
Does the Kflop/Kanalog take differential signals?
Re: Kasuga NC mill to CNC ?'s
« Reply #59 on: May 29, 2012, 12:42:06 AM »
I found this. What do u think? It looks very similar to my board in the control that the resolvers plug into

http://www.ebay.com/itm/RESOLVER-DC-MOTOR-LOGIC-BOARD-FOR-BANDIT-3-CONTROL-/130500735440?pt=BI_Control_Systems_PLCs&hash=item1e627331d0#ht_921wt_1163