Search found 15 matches

by BepsIt
Sat Aug 23, 2025 6:39 am
Forum: C Programs
Topic: how to drive a VFD with 0-10V/CW/CCW signal
Replies: 4
Views: 27193

Re: how to drive a VFD with 0-10V/CW/CCW signal

hi Tom, Sorry for the double post, you usually reply as soon as possible and I thought you were on vacation. Said that, I still have a doubt: Is "USE_POS_NEG_VOLTAGE" a global variable that affects all DACs or can I just tie it to the spindle axle? (I still have X, Y and Turret driven by +-10V) If s...
by BepsIt
Thu Aug 21, 2025 3:06 pm
Forum: C Programs
Topic: how to drive a VFD with 0-10V/CW/CCW signal
Replies: 4
Views: 27193

Re: how to drive a VFD with 0-10V/CW/CCW signal

Hi Tom,
while waiting your comments I took a look at my personal C programs and I found an header file with this line:

#define USE_POS_NEG_VOLTAGE 1 // 0 = output Magnitude, 1 = output positive and negative speed

is this variable that arrange the DAC output between +-10V and 0-10V?

Beppe
by BepsIt
Thu Aug 21, 2025 1:44 pm
Forum: C Programs
Topic: how to drive a VFD with 0-10V/CW/CCW signal
Replies: 4
Views: 27193

how to drive a VFD with 0-10V/CW/CCW signal

hi Tom, I'm Beppe, from Italy. My lathe is equipped with an Omron R88 driver. It controls it via +-10V supplied by the KFLOP analog-to-digital converter. A few days ago, the driver broke, and I need to replace it with a new one. I already have a VFD driver that requires 0-10V as the speed reference ...
by BepsIt
Thu May 09, 2019 6:33 pm
Forum: Bug Reports
Topic: G-Code Error
Replies: 2
Views: 8018

Re: G-Code Error

Ok Tom

Thanks
by BepsIt
Thu May 09, 2019 5:28 pm
Forum: Bug Reports
Topic: G-Code Error
Replies: 2
Views: 8018

G-Code Error

Hello Tom I started to use KmotionCNC on my mill and i set CAM post processor as "Generic LinuxCNC(EMC2)". All files are working fine but only if i delete G91.1 (incremental IJK mode) from the beginning, otherways KmotionCNC notify a "G_Code Error". Is this a bug or what else? Currently I am using K...
by BepsIt
Mon Apr 29, 2019 7:08 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: How to ceck a differential input status
Replies: 2
Views: 3539

Re: How to ceck a differential input status

Hi Tom of course i know that "An index pulse is only one differential signal". I wrote: i have X index on JP2/36-37, Y index on JP2/38-39 and Z index on JP2/40-41 only because in the Kanalog description you say: JP2 converts 8 of the signals and connects them to Kflop I/O bits 36-43... However, by t...
by BepsIt
Sun Apr 28, 2019 4:51 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: How to ceck a differential input status
Replies: 2
Views: 3539

How to ceck a differential input status

good morning Tom, I just finished writing the "Ref" C-program for KmotionCnc and it's all full functionally. Currently it's working on the home switches. Because they are mechanical switches, I would want to refer the Axis on the encoders indexes for more precision. All encoders are connected to Kan...
by BepsIt
Mon Apr 22, 2019 9:29 am
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: S command doesn't work properly
Replies: 12
Views: 8765

Re: S command doesn't work properly

hi Tom

yes you right: i tryed 1/3000 and not 1.0/3000.0, I am not a C++ user and I didn't know that difference

Many thanks

Beppe
by BepsIt
Sun Apr 21, 2019 10:02 am
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: S command doesn't work properly
Replies: 12
Views: 8765

Re: S command doesn't work properly

good morning Tom, problem fixed: now the Spindle is full functional, but only after a modification of FACTOR value into the header MySpindleDefs.h. In particular I had to replace the declaration: #define FACTOR (1.0/3000.0) with the new one: #define FACTOR 0.00033 // (1/3000 = 0.00033) the first one...
by BepsIt
Sat Apr 20, 2019 6:41 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: S command doesn't work properly
Replies: 12
Views: 8765

Re: S command doesn't work properly

attached the Init C fil, so you can check if I have wrong configuration

Beppe