[etherlab-users] Commands working, feedback frozen

[Dusty Clark]

There is an AKD parameter, FBUS.SAMPLETIME that sets the internal packet
sampling rate on the EtherCAT connection. If you are also getting a random
Error 125 (fieldbus sync lost) when the feedback freezes, there's a good
chance you need to tweak the setting. It's unclear that you have the PDO
mapped to read the position with your faster version?

Good luck!

Dusty

On Mon, Aug 22, 2016 at 12:15 PM, Alyssa Wells <Alyssa.Wells at custom-pak.com>
wrote:

> Just wondering if anyone else has had an experience with EtherCAT
> communications where sending command positions works fine, the drive
> responds and goes to the position, but the drive does not send back
> feedback on its current position.
>
> Using 1.5.2 on RT Debian system, talking to Kollmorgen AKD drives CoE
>
> Communications are good both ways at loop speeds of ~2ms, lowering the
> speed of the loop to ~1ms causes the feedback to freeze.
>
>
> Thanks,
> Alyssa
>
>
>
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