Search found 10 matches

by TFrenken
Sun Dec 14, 2025 5:03 pm
Forum: Hardware Interface Issues
Topic: Kogna disconnects from PC after Bit is set high
Replies: 8
Views: 14225

Re: Kogna disconnects from PC after Bit is set high

Thanks for the quick reply. The relays are driven by 24V signals and only switch the LVTTL signals to the internal 3.3V. This seems to work better than using solid state/ opto relays for input isolation. For outputs I do use solid state relays or special mechanical relays rated at 3V which work fine...
by TFrenken
Sat Dec 13, 2025 9:07 am
Forum: Hardware Interface Issues
Topic: Kogna disconnects from PC after Bit is set high
Replies: 8
Views: 14225

Re: Kogna disconnects from PC after Bit is set high

Hi Tom, thank you for your help and suggestions. I found the JP9 connector to be the cause of the disconnect problem. I also changed the system to lower the power needed of the 3.3V supply and now use the internal 3.3V through low power electro-mechanical relays on JP9 as Inputs(JP9 3.3V -> relay ->...
by TFrenken
Mon Dec 01, 2025 2:52 pm
Forum: Hardware Interface Issues
Topic: Kogna disconnects from PC after Bit is set high
Replies: 8
Views: 14225

Re: Kogna disconnects from PC after Bit is set high

Hi Tom, I did a few tests on the weekend and found the cause of the problem. If I understand correctly the problem should have been the high power consumption of the internal 3.3V supply. The Home and Limit Switches(Bit 200 - 203 JP9) used the 3.3V supply and the Limits are always on. After disconne...
by TFrenken
Fri Nov 28, 2025 4:35 pm
Forum: Hardware Interface Issues
Topic: Kogna disconnects from PC after Bit is set high
Replies: 8
Views: 14225

Re: Kogna disconnects from PC after Bit is set high

Hi Tom, thanks for the quick reply. Kogna is powered by a Meanwell 5V 3A power supply. I use SSR-41FDA Solid State Relays, as with my other boards. The positive input is provided by the Bit and the ground ia connected to the ground of the power supply. Could it be that the power supply ground differ...
by TFrenken
Fri Nov 28, 2025 2:30 pm
Forum: Hardware Interface Issues
Topic: Kogna disconnects from PC after Bit is set high
Replies: 8
Views: 14225

Kogna disconnects from PC after Bit is set high

Greetings, I have a problem after updating to Kmotion 5.4.1. When I switch Bit 255 or 256 ON, Kogna disconnects immediately from the PC. The Bits are activated but there is no way to reconnect without restarting Kogna. Both Bits are used as General Outputs and drive small solid-state relays. There s...
by TFrenken
Fri Feb 14, 2025 12:40 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: Spindle load, display analog readings on screen
Replies: 2
Views: 21680

Re: Spindle load, display analog readings on screen

Hi Tom,

thank you for the quick reply and this great solution.

Regards,
Thomas
by TFrenken
Thu Feb 13, 2025 9:13 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: Spindle load, display analog readings on screen
Replies: 2
Views: 21680

Spindle load, display analog readings on screen

Hi Tom,
is it possible to display an ADC value on the KMotionCNC screen?
If possible as some kind of bar or percentage, in my case to show spindle load.

Regards
Thomas
by TFrenken
Fri Jul 05, 2024 6:46 am
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: Correction of rotary axis
Replies: 5
Views: 25427

Re: Correction of rotary axis

Hi Tom,
I honestly did not expect to see this function implemented this fast. Thank you very much! Your support is beyond words. I will test this function as soon as the machine is ready for measurements.

Regards,
Thomas
by TFrenken
Wed Jun 19, 2024 3:16 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: Correction of rotary axis
Replies: 5
Views: 25427

Re: Correction of rotary axis

Hi Tom, thanks for the quick reply. As of now I would only like to be able to correct mechanical positioning errors of rotary axis. As those errors are non linear, I need some kind of correction table with corrections to the angular position at intervals between 0° and 360°. For example if 90° is of...
by TFrenken
Mon Jun 17, 2024 7:23 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: Correction of rotary axis
Replies: 5
Views: 25427

Correction of rotary axis

Hello,
I use your Kogna board with KMotionCNC for a retrofit on a Hermle UWF 1000. I am planning on using the geo correction table for X and Y axis with Z offset. But is there a possibility to compensate for non linear errors in rotary axis as well?

Regards,
Thomas