ECR60 clear Fault?? help

Hi, I have to work with 3 ECR60 and ive got a little bit of a problem here. The LEDs are indicating a general problem. If i read the register, i get:
~$ ethercat upload -p 4 --type uint16 0x6041 0
0x1a08 6664
and according to the can protocol it seems to be a fault. So i hooked up a test stepper in p 4. But if i try to reset:...
~$ ethercat download -p 4 0x6040 0 --type uint16 0x0000
~$ ethercat download -p 4 0x6040 0 --type uint16 0x0080
~$ ethercat download -p 4 0x6040 0 --type uint16 0x0000

nothing happens. So I'm a little bit frustrated at the time. So maybe someone has an Idea how to fix my problem and saves me the next overnight work with try and error attempts
 

are you trying to control with the terminal, without linuxcnc?

As long as linuxcnc or another ethercat application is not started, there exists no realtime ethercat thread. In this case the amps will show somekind of error or "no communication"

You can't write to pdos with the "ethercat download/upload" commands, these are only for sdo communication. As 0x6040 will be mapped to an pdo in the most standart configuration cases, the slave will not recognize the value .

There is a complete config for the ECR60 drives I built here
github.com/rodw-au/linuxcnc-cia402

If you follow the sticky in the forum thread yiou can install etherlabmaster on your linuxcnc PC
You will need a litle bit of modification around the pid in the xml which you can get by typing ethercat slaves -v once etherlabmaster is installed.
Also, edit for the number of drives you have,

Thank you for your reply. And great thanks to rodw. Your posts have helped me soooo much, thanks for your work. Back to the Problem. I just wanted to clear the device errors by terminal. All other registers were fine but i could not reset the faults..... So after some time i switched everything off and back on.... No faults, everything works. I forced a fault by deconnecting a drive but i could reset the register and everything works fine now.

Thanks for your reply.