Dynomotion

Group: DynoMotion Message: 814 From: cnc_oz Date: 12/23/2010
Subject: Connections with Mach3 & KFlop & ServoDrives
Hi All. I have just received my KFlop and have the most elementary questions. I have trolled the whole forum since the beginning and not found a simple diagram to connect Mach3 & KFlop & ServoDrives. The drives in my case are Rutex 990H.
1. Basically, does the encoder feedback from the servo motors go back to the Rutex drives as before (when I use SmoothStepper) or do they go back to the KFlop.
2. In your Mach3 plug-in install sequence, step 3 says configure the motors. How do you use Kmotion to do this when the PID pots are on the servo-drive?
Seems I lost the plot somewhere.

Regards
John
Group: DynoMotion Message: 816 From: Tom Kerekes Date: 12/24/2010
Subject: Re: Connections with Mach3 & KFlop & ServoDrives
Hi John,
 
Well is the Amplifier a Step/Dir drive?  What type of input does it have?  You didn't include any info or links?
 
But most likely yes.  If the drive is Step/Dir then it must close the position loop.  It isn't necessary to also connect the encoder back to KFlop, but if you do you will be able to have KFlop monitor the following error and also plot the performance on the Step Response Screen.
You are correct in your case the servo tuning will be made in the amplifier, but you still need to configure settings for the axis in KFlop.  You need to configure the axis as a Step/Dir output, which device channel, open collector or LVTTL, the max Velocity, Acceleration, Jerk, Encoder if connected, Allowed Following Error, and such.
 
Regards,
TK