For the scan case you could try to check the sync settings of the drive. Please check the suppliers manual for needed settings.
For the inserting by hand case please check the cyclic communication settings if the device description file brought the correct configuration, as it seems that the IO parameter are not fitting.
We are currently doing tests with AMI8xxx connected via CoE and its working fine using the standard configuration.
Please also see the "3rd party EtherCAT slave interoperability list" where already tested devices are listed.
... View more