Overview 

EtherCAT®(1) is a high speed, real time communication protocol that has the ability to update many devices in the microsecond range. This makes it ideal for multi-axis synchronised control or in systems where a master is coordinating a large variety of devices such as sensors, motion axes, distributed IO, etc.

The following network diagram shows a typical EtherCAT network including an EtherCAT master, 3 Cool Muscle slave devices and an additional IO module.




Cool Muscle Motors 

The following CM1 motors are available with integrated EtherCAT communication. Use the Cool Muscle EtherCAT Bridge for all other models



Part NumberInput Voltage

Peak Torque

Peak CurrentPeak Speed
CM1-E-17S30D24V ± 10%0.117 Nm (11.61 oz.in)1.0A3000 rpm
CM1-E-17L30D24V ± 10%0.54 Nm (76.4 oz.in)1.8A3000 rpm
CM1-E-23S30D24V ± 10%0.46 Nm (65.14 oz.in)5.1A3000 rpm
CM1-E-23L20D24V ± 10%1.24 Nm (175.6 oz.in)3.4A2000 rpm


If the drive and control power are separated all motors will draw a maximum of 125mA on the 24V control power.

Master Controllers

EtherCAT is an industrial protocol that requires a master controller to control all slave devices. Master controllers typically have the ability to configure the slave device as well as control them. The following is an example list of common EtherCAT controllers

Note: Control Room is not an EtherCAT master and cannot be used with the CM1-E.




(1) EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.