General description The MKS SERVO57D CAN MB PCBA NEMA23 Closed Loop Stepper Motor Driver is designed for CNC and 3D printing applications. It operates quietly and efficiently, supporting multiple working modes and advanced communication protocols. Technical specifications Working modes: 6 (pulse interface: open loop, closed loop, FOC mode; serial interface: open loop, closed loop, FOC mode) Maximum input pulse frequency: 160KHz Maximum speed: 3000RPM Material: ABS Dimensions: Measurement allowed error is +/- 1-3cm Compatibility and accessories Supports CAN interface Supports MODBUS-RTU communication protocol Includes 1 stepper motor driver Usage Supports curve acceleration and deceleration Supports limit switch to return to zero Offers speed mode, relative position, and absolute position control modes Allows for 1-256 arbitrary subdivision and arbitrary working current setting Other information Note: If the (STP//EN) signal high level is 3.3V, the CoM must be 3.3V; if the (STP/DIR/EN)