1. Support 6 working modes: pulse interface (open loop, closed loop, Foc mode), serial interface (open loop, closed loop, Foc mode) 2. Support RS485 interface 3. Support MODBUS-RTU communication protocol 4. Support curve acceleration and deceleration 5. Support limit switch to return to zero Support speed mode, relative position and absolute position control mode Support 1-256 arbitrary subdivision, support arbitrary working current setting The maximum input pulse frequency is 160KHz, and the maximum speed is 3000RPM Support multiple motor synchronous working modes Aluminum alloy shell Note: if the (STP//EN)signal high level is 3.3vthe CoM must be 3.3V if the (STP/DIR/EN)signal high level is 5.0Vthe coM must be 5.0V and so on. Note:Due to different production batches, there may be slight differences in products. Type:RS485 Colour:As Shown Material:ABS Package Contents: 3 x stepper motor Drive Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.