Resurrecting an old project

[TomKerekes]

Hi Art,

SWE would not normally be appropriate as that comes on after KFLOP/Kanalog Boots not when Mach3/KMotionCNC is initialized and the servos are enabled.

I don't have any idea why a wiring a relay would cause a reset, reboot, or disconnect. Any relay with a coil should have a reverse diode to avoid a high reverse voltage (spark) when it is turned off.

You might turn off a KFLOP LED so you can determine if KFLOP is being reset (and the LED would be turned back on) or the PC is disconnecting the USB.

[FlyingScot]

Hi Tom

I forgot that I had changed from SWE to Fet 0 O/P and I have a diode across the relay. I have also moved the relay from the kflop enclosure to be close to the drives.
I am not sure what you mean by turning off a kflop led?

Regards

Art

[TomKerekes]

Hi Art,

Placing

ClearBit(46);

In your Initialization C Program will turn off one of the LEDs on KFLOP. If the LED comes back on you will know KFLOP rebooted.

[FlyingScot]

Hi Tom

Yep Kflop rebooted relay dropped out.

Going to try a separate 5v power supply incase there is a drop in 5v when relay triggers. (Its not visible on meter and I don't have my scope handy)

Art

[FlyingScot]

Thanks Tom

Problem solved it was due to using a dual power supply 5v and 24v.
Now using individual supplies and all seems well.

Regards

Art