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Encoder setup help??
« on: July 15, 2015, 04:13:52 PM »
Good afternoon I have a question i'm sure one of you can help me with. I am building a new cnc mill. It is servo based. Bare in mind all my previous experience is with steppers. I'm using amt102-v encoders. When setting these up in Mach3 how do I go about getting this setup correctly? I have the encoder set to 500ppr. They are connected to kelinginc 850 oz/in servo motors DC, I'm also using the DG4S 8020 sold by cnc4pc.
Re: Encoder setup help??
« Reply #1 on: July 16, 2015, 06:45:08 AM »
Any help please?? This problem is really getting frustrating.

Offline BR549

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Re: Encoder setup help??
« Reply #2 on: July 16, 2015, 07:40:25 AM »
The encoder wires to the DRIVE.  Mach3 does not close the loop it is closed in the drive.

(;-) TP
Re: Encoder setup help??
« Reply #3 on: July 16, 2015, 09:37:26 PM »
Thank you. I understand that part. Where I'm having the issues is understanding how the ppt or cpr is used to configure the motor tuning and setup in Mach 3.

Offline BR549

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Re: Encoder setup help??
« Reply #4 on: July 16, 2015, 11:46:55 PM »
  if it is a quad encoder and you have 1000 counts then you use 4000 cpr. That does NOT include any gear reduction or screw tpi

CPR * reduction*screw pitch = steps per

(;-) TP
Re: Encoder setup help??
« Reply #5 on: July 17, 2015, 10:00:59 AM »
I have an amt102-v. I don't know if it is a quad encoder. It says it is a capacitive encoder. I can set the ppr (pulse per revolution) using a dip switch. Right now I have the encoder set to 500 ppr. My servo drives are set to 2x mode. I believe this gives me 1000 cpr.
Re: Encoder setup help??
« Reply #6 on: July 17, 2015, 09:07:59 PM »
What is an acceptable servo error, or encoder error.
Re: Encoder setup help??
« Reply #7 on: July 18, 2015, 06:32:45 PM »
Hello is there anyone out there??