By adding an extended joint board (EtherCAT), servomotors of various capacities can be controlled.
Sanyo Denki: SANMOTION R ADVANCED MODEL EtherCAT
Yaskawa Electric: SGD7S EtherCAT
The extended joint board enables external devices (amplifiers, motors) compatible with the EtherCAT Slave to be used as additional axes.
An RC8 Series controller generates paths also for additional axes to send them to external devices, which are slaves, through EtherCAT communication. The external devices operate according to the position command as additional axes.