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Author Topic: Kasuga NC mill to CNC ?'s  (Read 38928 times)

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Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #40 on: May 26, 2012, 01:14:29 PM »
Looking at that seems to suggest the Bandit controller wants encoder inputs and I never saw any mention of resolver. That would lead me to believe that if your motors do have resolvers (seems likely ) then the amps have an encoder signal output. If that is the case then you will probably not need to fit additional encoders.
Getting the model and make of amps would likely let us know for sure.
Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #41 on: May 26, 2012, 02:26:24 PM »
I'll take pics of all 3 panels and u would probably be able to tell me where the amps r located
Re: Kasuga NC mill to CNC ?'s
« Reply #42 on: May 26, 2012, 08:37:50 PM »
So I'm guessing the Amps are in the first photo but I'm not sure.





Offline BR549

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Re: Kasuga NC mill to CNC ?'s
« Reply #43 on: May 26, 2012, 08:53:03 PM »

Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #44 on: May 27, 2012, 02:43:43 AM »
Yes the NC400s are your Amps. Had NC700s on the Beaver NC5 and they drove me daft with the whistle from them when enabled, hope the 400's are not the same ;D
Terry has linked to a pdf for them so will have a look in a bit and see what signals they have.
Hood

Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #45 on: May 27, 2012, 03:45:27 AM »
Had a quick look and it seems that the signal the NC400s want from the motors is a tach signal to determine the speed of the motor. That then brings up the question of whether its a resolver or encoder that is on the motors  as the previous controller info you posted seems to suggest that the control only wants encoder inputs.
Really I think you will need to take off the cover from the end of a motor and see if you can find out if its a resolver or encoder there.
Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #46 on: May 27, 2012, 12:15:15 PM »
I took the 4 screws off the top of the motor and it didn't come off. I don't know where to go from there. Should I remove the other 4 that the cables hook into?



Now that you mention it I did see this when I was taking those pics yesterday.

« Last Edit: May 27, 2012, 12:16:52 PM by K_Labs »
Re: Kasuga NC mill to CNC ?'s
« Reply #47 on: May 27, 2012, 02:38:52 PM »
got the cover off with some wiggling





Offline Hood

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Re: Kasuga NC mill to CNC ?'s
« Reply #48 on: May 27, 2012, 04:48:02 PM »
Looks like the bigger one in the middle is a Tach and the other one to the side is a resolver. Can you trace where the wires from the resolver go to? The Tach wires will go to the NC400's.
Going to be a PITA to fit an encoder I think.
Hood
Re: Kasuga NC mill to CNC ?'s
« Reply #49 on: May 27, 2012, 09:19:10 PM »
Well that is the quill servo for my Z and that should be a piece of cake cuz it protudes a bit at the past the pulley. The X and Y have me worried. So maybe for those I could run a 1:1 ratio pulley off of the ball screws to a encoder? Or would that be inaccurate? I'll trace the resolver wire tomorrow morning