CL3-E57H bus type closed-loop stepper driver is a digital closed-loop stepper driver that combines the latestclosed-loop control algorithm and EtherCAT bus communication protocol. This product supports the CoE(CANopen over EtherCAT) protocol and conforms to the CIA402 standard. Compared with the traditional pulse-type driver, thebus-type driver has simpler wiring, real-time data transmission, high-reliability communication, and can realize multi-axis synchronous communication control. This series of drivers sample advanced closed-loop algorithms, which can effectively suppress motor temperature rise, reduce motor vibration, and effectively increase motorrotation torque, can be adapted to 42/57/60 series closed-loop stepper motors.